Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.

Patents

  1. Advanced Patent Search
Publication numberCN101675577 A
Publication typeApplication
Application numberCN 200880014453
PCT numberPCT/US2008/062428
Publication date17 Mar 2010
Filing date2 May 2008
Priority date2 May 2007
Also published asCN101675593A, CN101675593B, CN101720526A, CN101720526B, CN101730972A, CN101743683A, CN101743683B, DE602008004510D1, EP2151042A1, EP2151061A1, EP2151061B1, EP2153511A1, EP2153511B1, EP2153512A2, EP2153513A1, US7554473, US7719246, US7719248, US7746043, US7821237, US7863828, US7888922, US7894216, US7969125, US8040703, US8120341, US8125805, US20080272744, US20080272745, US20080272746, US20080272747, US20080272748, US20080272755, US20080272756, US20080272757, US20080272758, US20080272945, US20080273356, US20110103111, US20120194143, WO2008137315A1, WO2008137652A1, WO2008137654A1, WO2008137655A1, WO2008137656A2, WO2008137656A3, WO2008137679A1, WO2008137684A1
Publication number200880014453.2, CN 101675577 A, CN 101675577A, CN 200880014453, CN-A-101675577, CN101675577 A, CN101675577A, CN200880014453, CN200880014453.2, PCT/2008/62428, PCT/US/2008/062428, PCT/US/2008/62428, PCT/US/8/062428, PCT/US/8/62428, PCT/US2008/062428, PCT/US2008/62428, PCT/US2008062428, PCT/US200862428, PCT/US8/062428, PCT/US8/62428, PCT/US8062428, PCT/US862428
Inventors约翰L梅兰松
Applicant塞瑞斯逻辑公司
Export CitationBiBTeX, EndNote, RefMan
External Links: SIPO, Espacenet
Switching power converter with efficient switching control signal period generation
CN 101675577 A
Abstract
A power control system includes a switching power converter and a power factor correction (PFC) and output voltage controller. The switching power converter utilizes a nonlinear energy transfer process to provide power to a load. The PFC and output voltage controller generates a control signal to control power factor correction and voltage regulation of the switching power converter. The PFC and output voltage controller includes a nonlinear delta-sigma modulator that models the nonlinear energy transfer process of the switching power converter. The nonlinear delta-sigma modulator generates anoutput signal used to determine the control signal. By using the nonlinear delta-sigma modulator in a control signal generation process, the PFC and output voltage controller generates a spectrally noise shaped control signal. In at least one embodiment, noise shaping of the control signal improves power factor correction and output voltage regulation relative to conventional systems.
Claims(26)  translated from Chinese
1.一个系统,其包括: 一个控制器,其系用来生成一控制开关整流器中开关的电阻率的开关控制信号,其中,对开关电阻率的控制使输入至开关整流器的电流产生与输入至开关整流器的时变电压电源信号相应的变化,其中控制器包括: 一周期发生器,其系用来确定开关控制信号的周期从而使开关控制信号的周期发生与以下因素中至少一个对应的变化: (i)开关控制信号的周期与传输至与开关整流器相连负载的估算功率呈逆相关; (ii)开关控制信号的周期与时变电压电源信号的瞬时电压水平呈逆相关;和(iii)开关控制信号的周期与时变电压电源信号的线电压水平呈正相关;和一脉宽发生器,其系用来与以下至少一个响应,确定开关控制信号的脉宽;(i)开关控制信号的确定周期, (ii)电压电源信号的瞬时电压水平,和(iii)开关整流器输出电压信号的电压水平。 1. A system comprising: a controller-based switch control signal used to generate a control switch rectifier switch resistivity, wherein the resistivity of the control switch to switch the input rectifier currents and input to When the switching regulator power supply alternating voltage signal corresponding change, wherein the controller includes: a cycle generator, which system is used to determine the switching control signal so that the cycle period of the switch control signal occurs in at least one of the following factors corresponding variation: cycle and transmission (i) the switch control signal to estimate the power of the connected load and switch rectifier inverse correlation; (ii) switch control signal cycle and variable voltage power supply signal when the instantaneous voltage level was inversely related; and (iii) switch control signal cycle varying voltage power supply signal when the line voltage levels were positively correlated; and a pulse generator system for at least one response to the following to determine the switch control pulse signal; determining (i) the switch control signal cycle, the instantaneous voltage level (ii) the power supply voltage signal, and (iii) the voltage level switching rectifier output voltage signal.
2. 根据权利要求1所述的系统,其另外包括:一输入,其系用来接收发自电压电源的时变电压电源信号;及此开关整流器,与控制器相连,以将此电压电源信号转变为一输出电压信号,此开关整流器包括此开关以控制从电压电源传输至开关整流器的功率,其中所述开关功率另外包括一输出,其中所述开关在导电时使功率从电压电源传送至感应器,在绝缘时使功率传送至负载。 2. The system according to claim 1, additionally comprising: an input, which is received from the bottom line to the power supply voltage of the power supply alternating voltage signal; and this switching regulator, and the controller is connected to the power supply voltage of this signal into an output voltage signal, the switching regulator comprises a switch for controlling the voltage of the power transmitted from the rectifier to the power switch, wherein the switch comprises an additional power output, wherein when the switch is in the conductive transfer of the power from the power supply voltage to the sensing It is, in the insulation of the power delivered to the load.
3. 根绝权利要求1所述的系统,其中周期发生器被设置成确定开关控制信号的周期从而使开关控制信号的周期根据以下因素中至少两个发生变4b:(i) 开关控制信号的周期与传输至与开关整流器相连负载的估算功率呈逆相关;(ii) 开关控制信号的周期与电压电源信号的瞬时电压水平呈逆相关;和(iii)开关控制信号的周期与时变电压电源信号的电压水平呈正相关。 Period (i) switch control signals: The system according to claim 3 extermination, in which period the generator is arranged to determine the period of the switch control signal so that the switch control signal cycle becomes 4b according to the following factors occur in at least two To estimate the power switch is connected to the rectifier load was inversely related to the transmission; instantaneous voltage level (ii) switch control signal voltage supply cycle was in inverse correlation signal; variable voltage power supply signal and (iii) the period of the switching control signal The voltage levels were positively correlated.
4. 根据权利要求1所述的系统,其中周期发生器被设置成确定开关控制信号的周期从而使开关控制信号的周期根据以下因素发生变化:(i) 开关控制信号的周期与传输至与开关整流器相连负载的估算功率呈逆相关;(ii) 开关控制信号的周期与电压电源信号的瞬时电压水平呈逆相关;和(iii) 开关控制信号的周期与时变电压电源信号的线电压7jC平呈正相关。 4. The system according to claim 1, wherein the cycle of the generator is arranged to determine the switching control signal so that the cycle period of the switch control signal changes depending on the following factors: (i) the period of the switching control signal to the switching and transmission a rectifier connected to the load power estimated inverse correlation; instantaneous voltage level (ii) switch control signal voltage supply cycle was in inverse correlation signal; and (iii) the period of the switch control signal varying voltage power supply signal level when the line voltage 7jC There was a positive correlation.
5. 根据权利要求1所述的系统,其中开关的周期对电压电源信号的瞬时电压水平的趋势为线性。 5. The system of claim 1, wherein the switching cycle of the instantaneous voltage levels of the voltage trend of the power signal is linear.
6. 根据权利要求1所述的系统,其中开关的周期对电压电源信号的瞬时电压水平的趋势为非线性。 6. The system of claim 1, wherein the voltage switching period trends of the instantaneous voltage of the power level of the signal is non-linear.
7. 才艮据权利要求1所述的系统,其中开关的周期对电压电源信号的瞬时电压水平的趋势为基于分段线性阶跃函数。 7. It was Gen cycle system according to claim tendency to switch voltage supply instantaneous voltage level signal based on piecewise linear step function.
8. 根据权利要求1所述的系统,其中,对时变电压电源信号的180度半周期,开关控制信号包括多周期和当时变电压电源信号的量小于其均方根时存在的小于开关控制信号的半周期。 8. The system of claim 1, wherein the time-varying signal voltage source 180 degree half cycle, the switching control signal comprises a plurality of cycles and the amount of time varying voltage signal is less than the power when the presence of which is smaller than the RMS switching control half period of the signal.
9. 根据权利要求l所述系统,其中控制器另外包括:一模拟变数字的电压水平探测器,其系用来探测时变电压电源的^f直;和此周期发生器,包括一函数发生器,与电压水平探测器相连,用来接收数字探测后的电压水平值并生成一控制开关控制信号周期的数字化周期控制信号。 9. l The system according to claim, wherein the controller further comprising: an analog-to-digital voltage level detector, which system is used to detect when the power supply voltage becomes ^ f straight; and this cycle of the generator, includes a function generator device, and the voltage level detector is connected to receive the digital detection voltage value and generating a control after the switch control signal cycle digitized cycle control signal.
10. 根据权利要求9所述的系统,其中此函数生成器被配置以生成控制信号的周期,其系传送至与开关整流器相连的负载的估计功率,电压电源系的瞬时电压水平,和时变电压电源信号的线电压水平的一个函凄t。 10. The system of claim 9, wherein the function generator is configured to generate a control signal cycle, the instantaneous voltage level transmission lines to estimate the power rectifier load connected to the switch, the voltage supply lines, and time-varying voltage power line voltage level signals a sad letter t.
11. 根据权利要求1所述的系统,其中时变电压电源信号的线电压水平由以下中的一个代表: 一均方才艮值, 一平均值,和一时变电压电源信号值的峰值。 Line voltage level 11. The system of claim 1, wherein the variable voltage power supply signal when a representative of the following: an average value of just Burgundy, an average value, and a time-varying voltage power supply signal peak value.
12. 根据权利要求1所述的系统,其中开关控制信号的最大周期有别于开关控制信号的最小周期,其比率至少为2: 1。 12. The system of claim 1, wherein the maximum period of the switching control signal is different from the minimum period of the switching control signal, a ratio of at least 2: 1.
13. —种方法包4舌:生成一控制开关整流器中开关的电阻率的开关控制信号,其中,对开关电阻率的控制使输入至开关整流器的电流产生与输入至开关整流器的时变电压电源信号相应的变化;确定开关控制信号的周期从而使开关控制信号的周期发生与以下因素中至少一个对应的变化:(i) 开关控制信号的周期与传输至与开关整流器相连负载的估算功率呈逆相关;(ii) 开关控制信号的周期与电压电源信号的瞬时电压水平呈逆相关;和Ciii)开关控制信号的周期与时变电压电源信号的线电压水平呈正相关;确定开关控制信号的脉宽,其系对以下中至少一个做出的反应:(i)开关控制信号的确定周期,(ii)电压电源信号的瞬时电压水平,和(iii)开关整流器输出电压信号的电压水平;和提供开关控制信号至开关整流器。 13. - ways to package 4 tongue: generates a switch control signal to a control switch rectifier switch resistivity, wherein the resistivity of the control switch to switch the input rectifier currents and input to the switch time-varying voltage power rectifier corresponding change signal; determining the period of the switching control signal so that the switch control signal cycle occurs at least one of the following factors corresponding variation: power estimate (i) the period of the switch control signal is transmitted to a load connected to an inverse rectifier switch Related; instantaneous voltage level (ii) switch control signal and voltage supply signal cycle was inversely related; variable voltage power supply signal line voltage levels were positively correlated with the time and Ciii) switch control signal cycle; determining a switch control pulse signal The reaction of their lines to make at least one of the following: the determination period (i) the switch control signal, the instantaneous voltage level (ii) voltage power supply signal, and (iii) the voltage level of the switching regulator output voltage signal; and provide switch control signal to the switching regulator.
14. 一又利要求13的方法,它还包含:才妄收来自电压电源的时变电压电源信号;接收电压电源信号的瞬时电压水平的一个样本;接收开关整流器输出电压信号的电压水平的一个样本;转变电压电源信号为一输出电压信号;和供应此输出电压信号至负载。 13 and 14. The method of one claims, further comprising: when receiving only jump from a varying voltage source voltage supply signal; a voltage supply signal sample receiving instantaneous voltage level; and a voltage level of the output voltage of the rectifier to receive the switching signal samples; transition voltage power signal to an output voltage signal; and a supply voltage of this output signal to the load.
15. 一又利要求13的方法,它还包含:使开关在控制信号的每周期根据开关控制信号的脉宽导电;和使开关在每周期的剩余时间绝缘。 13 and 15. A claims, further comprising: conductive switching switch control signal pulse width control signal in a week under this section; and the switch insulation of the remainder of the week.
16. 根据权利要求13所述的方法,其中确定开关控制信号的周期包括确定开关控制信号的周期从而使开关控制信号的周期根据一下至少两种变化:(i) 开关控制信号的周期与传输至与开关整流器相连负载的估算功率呈逆相关;(ii) 开关控制信号的周期与电压电源信号的瞬时电压水平呈逆相关;禾口(iii) 开关控制信号的周期与时变电压电源信号的线电压水平呈正相关。 16. The method according to claim 13, wherein the switch control signal determining comprises determining the period of the switching control signal so that the cycle period of the switching control signal in accordance with at least two changes: the transmission cycle (i) to the switching control signal switching power converter connected to the load estimate inverse correlation; instantaneous voltage level (ii) switch control signal and voltage supply signal cycle was inversely related; Hekou (iii) the period of the switch control signals and variable voltage power supply signal when the line voltage levels were positively correlated.
17. 根据权利要求13所述的方法,其中确定开关控制信号的周期包括确定开关控制信号的周期从而使开关控制信号的周期:(i) 开关控制信号的周期与传输至与开关整流器相连负载的估算功率呈逆相关;(ii) 与电压电源信号的瞬时电压水平呈逆相关;和(iii) 与时变电压电源信号的线电压水平呈正相关。 17. The method according to claim 13, wherein the switch control signal determining the period of the switching control signal comprises determining the period of the control signal so that the switch period: (i) the period of the switch control signal is transmitted to the load connected to the switching regulator inverse correlation to estimate power; (ii) the instantaneous voltage of the power supply voltage level signal inverse correlation; and (iii) and variable voltage power supply signal when the line voltage levels were positively correlated.
18. 根据权利要求13所述的方法,其中确定开关控制信号的周期另外包括确定开关控制信号的周期从而使开关的周期与电压电源4言号的瞬时电压水平呈线性相关。 18. The method according to claim 13, wherein the switch control signal determining the period of the switching control signal additionally comprises determining the period of the cycle so that the switch and the power supply voltage instantaneous voltage level No. 4 was made by linear correlation.
19. 4艮据4又利要求13所述的方法,其中确定开关控制信号的周期另外包括确定开关控制信号的周期从而使开关的周期与电压电源信号的瞬时电压水平呈线性相关。 19.4 Gen 4 and Lee method according to claim 13, wherein the switch control signal determining period additionally include determining the period of the switch control signal so that the instantaneous voltage level cycle and the voltage supply signal switch linearly related.
20. 根据权利要求13所述的方法,其中确定开关控制信号的周期另外包括确定开关控制信号的周期从而使开关的周期与电压电源信号的瞬时电压水平的关系基于分段线性阶3夭函数。 20. The method according to claim 13, wherein the switch control signal determined period additionally comprises determining the period of the switching control signal so that the relationship between the instantaneous voltage of the switching period and the voltage level of the power signal based on the piecewise linear function 3 yao order.
21. 根据权利要求13所述的方法,其中所述开关整流器包括一连接于此开关整流器的输入和输出之间感应器,此方法另外包括:传送功率至感应器(当开关导电时);和传送功率至开关整流器的输出(当开关绝缘时)。 21. The method according to claim 13, wherein the switching regulator comprises a sensor connected thereto between the input and output rectifier switch, the method further comprising: transmitting the power to the inductor (when the switch is conductive); and transferring power to a switching regulator output (when the switch when the insulation).
22. 斗又利要求13的方法,它还包含:确定处于时变电压电源信号的180度半周期中的开关控制信号的多周期,从而使当时变电压电源信号的量小于其均方根时,小于开关控制信号的半周期存在。 Determining the multi-cycle alternating voltage power supply signal when in 180-degree half cycle of the switching control signal, so that when the amount is less than the variable voltage power supply signal rms: 22. The method of claim bucket and 13, further comprising , the switch control signal is less than a half-cycle exist.
23. 纟又利要求13的方法,它还包含:^笨测时变电压电源信号的电压水平^直;和确定开关控制信号的周期,其包括根据探测出的电压水平确定开关控制信号的周期。 Si and 23. The method of claim 13, further comprising: varying ^ ^ direct voltage supply voltage level signal when the measuring stupid; and determining the period of the switching control signal, which includes determining the period of the switching control signal according to the detected voltage level .
24. 根据权利要求13所述的系统,其中时变电压电源信号的线电压水平由以下中的一个代表: 一均方根值, 一平均值,和一时变电压电源信号值的峰值。 24. The system of claim 13, wherein the time-varying signal voltage power line voltage level of a representative of the following: a root mean square value, an average value, and a time-varying peak voltage power signal value.
25. 根据权利要求13所述的方法,其中确定开关控制信号的周期另外包括确定开关控制信号的周期从而使开关控制信号的最大周期有别于开关控制信号的最小周期,其比率至少为2: 1 。 25. The method according to claim 13, wherein the switch control signal determined period additionally comprises determining the period of the switching control signal such that the maximum period of the switching control signal is different from the minimum period of the switching control signal, a ratio of at least 2: 1.
26. —套装置,其包括:一件构件,其系用来生成一控制开关整流器中开关的电阻率的开关控制信号,其中,对开关电阻率的控制使输入至开关整流器的电流产生与输入至开关整流器的时变电压电源信号相应的变4匕;一件构件,其系用来确定开关控制信号的周期从而使开关控制信号的周期发生与以下因素中至少一个对应的变化:(i) 开关控制信号的周期与传输至开关整流器瞬时功率呈逆纟目关;(ii) 开关控制信号的周期与电压电源信号的电压水平?文变呈逆相关;和(m)开关控制信号的周期与时变电压电源信号的线电压7jc平呈正相关;和一件构件,其系用来对以下中至少一个估文出的反应确定开关控制信号的脉宽:(i)开关控制信号的确定周期,(ii)电压电源信号的电压水平,和(iii)开关整流器输出电压信号的电压水平。 26. - sets of devices, including: a member of its system for generating a control switch rectifier switch resistivity switch control signal, wherein the resistivity of the control switch to switch the input rectifier currents and input when to switch alternating voltage rectifier power supply signal corresponding variable 4 dagger; a member of its line used to determine the period of the switch control signal so that the switch control signal corresponding to the period of the occurrence of at least one change to the following factors: (i) switch control signals to switch rectifier period and instantaneous power transmission was inversely Si head off; voltage level (ii) switch control signal cycle varying voltage power supply signal was inversely related text;? and cycle (m) switch control signal and time-varying voltage power supply signal line voltage 7jc level was positively correlated; and a member of its system for estimating at least one of the following responses are sent out to determine the switching control pulse signal: (i) to determine the period of the signal switching control, (ii) the power supply voltage level voltage signal, and (iii) the voltage level of the switching regulator output voltage signal.
Description  translated from Chinese

高效生成开关控制信号周期的开关功率变换器 Efficient generates a switch control signal cycle switching power converter

优先^3L要求和相关专利申请 Priority ^ 3L requirements and related patent applications

本专利申i青要求依据35 USC 119(e)和37 CFR 1.78享有2007年5月2日递交名为"功率因数校正(PFC)控制器装置,口方》'去,,(Power Factor Correction (PFC) Controller Apparatuses andMethods)的60/915,547号美国临时专利申请的^又益,其通过引用寻皮整体纳入本专利申^"。 This patent application requirements based on i Green 35 USC 119 (e) and 37 CFR 1.78 enjoyment of May 2, 2007 filed called "power factor correction (PFC) controller means opening party" 'Go ,, (Power Factor Correction (PFC) Controller Apparatuses andMethods) No. 60 / 915,547 U.S. Provisional Patent Application ^ and benefits, which incorporated by reference in its entirety leather hunt this patent application ^. "

技术领域 Technical Field

本发明大体涉及到电子学领域及,尤其是通过高效生成开关控制信号周期的开关功率变换器转换电压的系统和方法。 The present invention relates generally to the field of electronics and, in particular, through the efficient cycle generates a switch control signal switching voltage switching power converter systems and methods.

背景技术 Background

很多装置利用功率操作。 Many devices use power to operate. 功率最初由一电源提供,如一个公用事业公司,通常它提供稳定输入电压。 Power is initially provided by a power source, such as a utility company, which typically provide a stable input voltage. 然而,各种设备使用的电压等级有别于电源所提供的稳定输入电压。 However, the use of various devices different from the power supply voltage level provided to stabilize the input voltage. 例如,基于发光二极管(LED)的照明系统,工作于非公用事业公司所提供的电压等级下。 For example, based on light-emitting diode (LED) lighting systems, work at non-utility company provides voltage level. 为了调节来自电源电压与装置需要利用电压的区别,功率变换器连接于电源和装置之间,以将交流电(AC)源提供的电压水平转换为,如,另外一不同于所供电压水平的AC交流电源。 And means for adjusting the power supply voltage from the need to use the difference between the voltage of the power converter connected between the power supply and the means to convert alternating current (AC) voltage level supplied to the source, e.g., another level different from the voltage supplied AC AC power. 整功率变换器还可以将AC功率转换为DC(直流电)功率和将DC功率转换为AC功率。 Whole power converter can also convert AC power to DC (direct current) power and the DC power into AC power. 开关开关功率变换器即为一类功率变换器的实例。 Switch power converter is an instance of a class power converter. 开关功率变换器利用开关及能源储存技术将输入电压转换为一部分与其相连的设备适宜的输出电压。 Switching power converter using the switching and energy storage technologies as part of the input voltage into the connected equipment appropriate output voltage.

图1描绘的是功率控制系统100,它包括:开关功率变换器102 , 电压电源101提供AC输入"mains"电源主电压Vmains至二极管全桥式整流器103 。 Figure 1 depicts a power control system 100, which includes: switching power converter 102, the voltage supply 101 provides AC input "mains" power mains voltage Vmains to diode full bridge rectifier 103. 所述电压电源101为,例如, 一公用事业单位,而AC电源电压Vmains则为,例如,在美国为60 Hz/120 V ,在欧洲为50 Hz/230 V 。 The voltage supply 101, for example, a public institution, and AC power supply voltage Vmains, compared with, for example, in the United States for the 60 Hz / 120 V, in Europe 50 Hz / 230 V.

整流器103对输入的电源电压Vma^进行整流。 Rectifier 103 pairs of input supply voltage Vma ^ rectified. 整流器103将输入的电源电压Vmains进行整流,并向开关功率转换器提供一个经过整流的,随时 The input rectifier 103 rectifies the supply voltage Vmains, switching power converter to provide a rectified, anytime

间而变的初级供电电压Vx。 The change between the primary supply voltage Vx. 开关功率变换器102提供近乎恒定的电压功率至负载112的同时对电压电源101维持阻抗输入特性。 Switching power converter 102 provides a nearly constant voltage power to the load 112 while maintaining impedance input voltage supply 101 properties. 对电压电源101维持阻性输入特性时提供近乎恒定的电压电力至负载112,这就被称为功率因素校正(PFC)。 It provides nearly constant voltage power supply 101 when the input characteristics to maintain resistive voltage power to the load 112, which is called the power factor correction (PFC). 因此,控制功率因素校正后的开关整流器102可使输入至开关整流器102的电流iL产生与AC电源电压Vmains近乎成 Therefore, the control of power factor corrected switch rectifier 102 can enter to switch rectifier current iL 102 with AC power supply voltage generated almost as Vmains

比例的变4b。 The proportion of variable 4b.

PFC和输出电压控制器114控制PFC开关108的导电性,从而提供功率因数校正并调节开关功率变换器102的输出电压Vc。 PFC and the PFC output voltage controller 114 controls the switch 108 conductive, thereby providing power factor correction and power adjustment switch of the converter output voltage Vc 102. PFC和输出电压控制器114通过控制电感电流iL以-使平均电感电流iL成线性并直接与初级供电电压Vx成比例。 PFC and output voltage controller 114 to control the inductor current iL - the average inductor current iL linear and directly proportional to the primary supply voltage Vx. 电感电流iL与初级供电电压Vx 的比例系数被调整以调节至负载112的电压。 Inductor current iL and the primary supply voltage Vx the scale factor is adjusted to regulate the voltage to the load 112. PFC和输出电压控制器114提供一个脉冲宽度调制的(PWM)控制信号CSQ,以控制开关108 的导通性。 PFC and output voltage controller 114 provides a pulse width modulated (PWM) control signal CSQ, to control the switch 108 for continuity. 在至少一个实施例中,开关108是一个场效应晶体管(FET), 而控制信号CSQ是开关108的栅极电压。 In at least one embodiment, switch 108 is a field effect transistor (FET), and the control gate voltage signal CSQ 108 is a switch. 控制信号CSo的脉沖宽度值和占空比取决于两个反馈信号,即初级供电电压Vx和电容电压/输出电压Vc。 CSo control signal pulse width and duty cycle depends on two feedback signals, namely primary supply voltage Vx and capacitor voltage / output voltage Vc. 一般也将输出电压Vc称为"链接电压"。 The output voltage Vc also generally referred to as "link voltage." 电流控制回路119提供电流iRTN至PFC和输出电压控制器114,以使PFC和输出电压控制器114调节平均iL电流210 (图2),使其等于目标iL电流208 (图2)。 Current control loop 119 to provide a current iRTN PFC and output voltage controller 114, so that the PFC controller 114 and the output voltage regulation the average current iL 210 (FIG. 2), so that it equals the target electric current iL 208 (FIG. 2).

10当二极管111为反向偏置和初级供电电压VX低于输入电源的 10 When the diode 111 is reverse biased and VX primary supply voltage lower than the input power

RMS值时,电容器106提供储能至负载112 。 When the RMS value of the capacitor 106 provides energy storage to the load 112. 电容器106的值与设计选才奪相关。 Capacitor values and design wins related to the election only 106. 在至少一个实例中,它非常大以维持非常稳定输出电压Vc, 由PFC和输出电压控制器114确定。 In at least one instance, it is very large in order to maintain a very stable output voltage Vc, 114 and an output voltage is determined by the PFC controller. 当使用400V输出电压Vc时, 电容器106的值为1微法每瓦由开关整流器102提供的最大输出功率。 When using 400V output voltage Vc, a value of 1 microfarad capacitor 106 provides the maximum output power per watt by the switching regulator 102. 在稳定负载条件随初级供电电压Vx频率波动期间,输出电压Vc保持在几乎恒定的目标值。 During steady load conditions Vx frequency fluctuates with the primary supply voltage, output voltage Vc is maintained at an almost constant target. 然而,输出电压Vc随负载条件变化而变化。 However, the output voltage Vc with the load conditions change. PFC和输出电压控制器114随输出电压Vc变化而变化,通过调节开关控制信号CSo还原输出电压Vc至目标值以响应电压CSo的变化。 PFC controller 114 and the output voltage with the output voltage Vc changes, by adjusting the switch control signal CSo restore output voltage Vc to the target value in response to changes in voltage CSo. 在至少一个实例中,PFC和输出电压控制器114包括一小电容115,以从初级供电电压Vx过滤任何高频信号。 In at least one example, PFC and output voltage controller 114 includes a small capacitor 115 to filter any high frequency signals from the primary supply voltage Vx.

因为寄生阻抗,每次开关108切换于绝缘和传导状态时开关功率变换器102产生开关损耗。 Because parasitic impedances, each switch 108 to switch to the insulation and conducting state switching power converter 102 generates switching losses. 寄生阻抗包括经过开关108的寄生电容132 。 Including parasitic impedances parasitic capacitance 132 via switch 108. 在切换开关控制信号CSo每周期TT,能源;故用于,例如,充电寄生电容132。 In the switch control signal CSo week of TT, energy; it is used, for example, charging of the parasitic capacitance 132. 因此,开关功率变换器102在开关控制信号CSo的各周期TT产生开关损耗。 Accordingly, switching power converter switch control signal 102 for each period TT CSo switching loss.

PFC和输出电压控制器114控制开关功率变换器102 ,从而传送需求量的功率至电容器106 。 PFC and output voltage controller 114 controls the switching power converter 102, and thus the demand for power transmission to the capacitor 106. 电力的需要量取决于负载112需求的电压和电流。 Power requirement depends on the load voltage and current 112 needs. 输入电压控制回路116提供初级供电电压Vx的样本至PFC和输出电压控制器114 。 Input voltage control circuit 116 to provide a sample of primary supply voltage Vx to PFC and output voltage controller 114. PFC和输出电压控制器114确定参考电压Vref (表示输出电压Vc的目标电压)和实际输出电压Vc(感应自节点122 并作为接收自电压回路U8的反馈信号)的差另U。 PFC and output voltage controller 114 determines the reference voltage Vref (Vc represents the output voltage of the target voltage) and the actual output voltage Vc (induction from node 122 as received from the voltage feedback signal circuit U8) Another difference U. PFC和输出电压控制器114普遍利用如下技术,如PI补偿控制,以对参考电压Vref相关的输出电压Vc中的差别作出反应。 PFC and output voltage controller 114 generally use a technique such as PI compensation control related to the reference voltage Vref output voltage Vc of the difference response. PFC和输出电压控制器114处理此差别,以顺利地调节输出电压进而避免因对小错误信号产生响应而产生输出电压Vc快速波动。 PFC and output voltage controller 114 processes this difference to successfully regulate the output voltage and thus avoid the small error signal is generated in response to rapid fluctuations in the output voltage Vc. PFC和输出电压控制器114生成脉宽调制的开关控制信号CSo进而驱动开关108。 PFC and output voltage controller 114 generates a pulse width modulated switching control signals CSo turn drives switch 108. 参见Prodi6的论文,"功率因数校正整 See Prodi6 papers, "the entire power factor correction

ii流器的快速电压回路的补偿器设计与评价"(Cbwpe"^torZ)ew'g" "w/ Compensator design and evaluation ii rapid voltage converter circuit "(Cbwpe" ^ torZ) ew'g "" w /

7?e"折e^)《IEEE功率电子汇刊》(IEEE Transactions on Power Electronics),,第12巻,5号,9月1007, 1719-1729页(本文将其作为"Prodi6"引用),描述了一个PFC和输出电压控制器114的例案。 7? E "off e ^)" IEEE Transactions on Power Electronics "(IEEE Transactions on Power Electronics) ,, Volume 12 No. 5, September 1007, pages 1719-1729 (herein as a" reference Prodi6 "), It describes a PFC and output voltage controller 114. The Case.

图2和3分别描绘开关控制策略。 Figures 2 and 3 depict switch control strategy. 其为典型的开关功率变换器,如开关功率变换器102 ,用以转换输入电压Vx为功率因数矫正后的输出电压Vc。 Which is a typical switching power converter, such as switching power converter 102 for converting an input voltage Vx is output after power factor correction voltage Vc. 图2描述过渡开关策略,图3描述稳定周期开关策略。 Figure 2 depicts the transition switch tactics, Figure 3 depicts a steady cycle of the switching strategy. 参考图1和2 , PFC和输出电压控制器114控制PFC开关108的传导率。 1 and 2, PFC and output voltage controller 114 controls the PFC switch 108 conductivity. 在至少一个实例中,初级供电电压Vx202为整流正弦波。 In at least one instance, the primary power supply voltage is rectified sine wave Vx202. 为了调节传输的能量并将功率因数保持在接近1, PFC和输出电压控制器114改变着控制信号CS。 In order to regulate the transmission of energy and power factor is kept close to 1, PFC and output voltage controller 114 to change the control signal CS. 的周期,使输入电流iL能够追踪到输为了调节传输能源量并维持功率因数接近1 ,PFC和输出电压控制器114改变开关控制信号CSo的期间TT ,以使电感电流iL (作为"输入电流"引用)跟踪初级供电电压Vx的变化并保持输出电压Vc稳定。 Cycle, the input current iL can be traced to the amount of energy input in order to adjust and maintain the transmission power factor close to 1, PFC and output voltage controller 114 changes the switch control signal CSo period TT so that the inductor current iL (as "input current" reference) track changes in the primary supply voltage Vx and maintain stable output voltage Vc. 过转换开关策略204 阐述的是,当初级供电电压Vx增加时,PFC和输出电压控制器114增加开关控制信号CSo的周期TT 。 Over switch 204 articulated strategy is that when the primary power supply voltage Vx increases, PFC and output voltage controller 114 to increase the switching control signal CSo cycle TT. 当初级供电电压Vx降低时,PFC和输出电压控制器114降低开关控制信号CSQ的周期。 When the primary supply voltage Vx lower, PFC and output voltage controller 114 to reduce the switching control signal CSQ cycle. 在转换开关策略204的一个实例中,脉宽时间Tl近乎恒定。 In one example of the policy switch 204, a pulse width time Tl almost constant.

时间T2代表感应器110的回扫时间,这种情况发生于开关108 绝缘及二极管111导电条件下。 Representative of the time T2 sensor retrace time 110, this happens at the switch 108 and the diode 111 conductive insulating conditions. 在至少一个实例中,感应器110的值与设计选择有关。 In at least one example, the sensor 110 of the design value and selection. 在至少一个实例中,所选感应器110的值可储备足够的能量(当开关108导电时传输自电压电源101的能量),从而在当开关108绝缘时传输能量至电容器106并进而维持需要的输出电压Vc。 In at least one example, the value of the selected sensor 110 may store sufficient energy (energy transfer from the voltage source 101 when the switch 108 conductive), so that when the switch 108 transfers energy to the capacitor dielectric 106 and thus the need to maintain the output voltage Vc. 对于转换开关策略204 ,脉宽时间Tl加上回扫时间T2等于开关控制信号CSo的周期TT。 204 to switch tactics, coupled with the pulse width time Tl flyback time T2 is equal to the period of the switch control signal CSo TT. 电感电流L波形206描述电感电流L随时间变4b与初级供电电压Vx。 L inductor current waveform 206 described time-varying inductor current L 4b with the primary supply voltage Vx. 当开关108导电,即处于"ON"的状态时,电感电流iL在脉宽Tl 中增加。 When the switch 108 is conductive, that is in the "ON" state, the inductor current iL increases in pulse width Tl. 当开关108绝缘,如处于"OFF,状态时,电感器电流在回扫时间T2中下降,并通过二极管111提供电感电流iL以对电容器106再充电。当开关控制信号CS。处于周期TT电感电流t达到0时,发生不连续导电模式(DCM)。当在整个周期TT电感电流iL超过0时, 发生连续导电模式(CCM)。当电感电流L等于0时,转换开关策略204 通过开始开关控制信号CS。的各周期,在DCM和CCM的边界,操作开关功率变换器102 。例如,开关信号CSG的频率1/TT在20 kHz至130kHz之间。开关控制信号CSo的周期TT和诱导电流iL波形206 中描绘的诱导电流iL每循环持续时间被延长,便于视觉观察。当小功率转换自电压电源101时,过渡开关策略204在高频率操作开关108 ,如接近电源电压Vmains的过零点212 ,并在轻负荷,如当负载112的功率需求轻时。 When the switch 108 insulation, such as in "OFF, state, inductor current in the flyback time T2 in decline, and the inductor current iL through diode 111 to capacitor 106 recharged. When the switch control signal CS. In inductor current cycle TT When t reaches zero, the occurrence of discontinuous conduction mode (DCM). When the whole cycle TT inductor current iL more than 0, the occurrence of continuous conduction mode (CCM). When the inductor current L is equal to 0, the switch 204 by the start switch control strategy signal CS. Each cycle, at the boundary of DCM and CCM, the operation switching power converter 102. For example, the switching signal CSG frequency 1 / TT between 20 kHz to 130kHz. CSo switching control signal and the period TT induced current iL waveform 206 depicted induced current iL per cycle duration is extended to facilitate visual observation. When the little power converter from the voltage supply 101, 204 transition switch tactics at high frequency operation switch 108, as close to the zero crossing of the supply voltage Vmains 212, and at light load, such as when a light load 112 when power demand.

PFC和输出电压控制器114设置一追踪初级供电电压Vx的目标电流208 。 PFC and output voltage controller 114 to set a primary supply voltage Vx to track a target current 208. 当电感电流iL在脉宽Tl达到目标电流208时,开关控制信号CS。 When the inductor current iL reaches the target current pulse width Tl 208, the switch control signal CS. 打开开关108 ,然后电感电流iL在回扫时间T2降至0。 Open switch 108 and the inductor current iL at retrace time T2 to 0. 平均电流210代表平均电感电流L 。 The average current 210 represents the average inductor current L. 平均电感电流iL追踪初级供电电压Vx从而提供功率因素校正。 Tracking the average inductor current iL primary supply voltage Vx to provide power factor correction.

根据图3 ,周期恒定开关策略302保持开关控制信号CSo的稳定周期TT ,并改变开关控制信号CSo的^永宽Tl以控制电感电流iL 。 According to Figure 3, the cycle constant switching strategy to keep the switch control signal 302 CSo the stabilization period TT, and change the switch control signal CSo of ^ Tl Yongkuan to control the inductor current iL. 当初级供电电压Vx从0增加至峰值时,PFC和输出电压控制器114降低开关控制信号CSQ的脉宽Tl稳定周期开关策略302操作DCM中的开关整流器102从而使回扫时间T2加脉宽Tl小于或等于开关控制信号CSQ的周期TT 。 When the primary supply voltage Vx increased from 0 to the peak, PFC and output voltage controller 114 to reduce the pulse width of the switching control signal CSQ stable Tl 302 operating cycle of the switching strategy DCM switching rectifier 102 so that the retrace pulse width Tl T2 plus less than or equal to the switching control signal CSQ cycle TT. 电感电流iL波形304描述的是稳定周期开关策略302在诱导电流iL的效果与初级供电电压Vx相关。 Inductor current iL waveform 304 describes stabilization period inducing a current in the switch strategy 302 iL effect associated with the primary supply voltage Vx. 使至于为周期恒定开关策略302而设计的转换开关策略204, PFC和输出电压控制器114 As for the cycle so that 302 constant switching strategy designed to switch strategies 204, PFC and output voltage controller 114

13设定目标电流208以追踪初级供电电压Vx。 13 sets a target current 208 to track the primary supply voltage Vx. 对稳定周期策略302 , TT 2(T1+T2),所述整流器102运行于DCM 。 Strategy for stabilization period 302, TT 2 (T1 + T2), the rectifier 102 runs in DCM.

PFC和输出电压控制器114以比输入电压Vx频率更高的频率更新开关控制信号CSo 。 PFC and output voltage controller 114 is higher than the input voltage Vx update a frequency switching control signal CSo. 输入电压Vx的频率一般为50-60 Hz。 The frequency of the input voltage Vx is typically 50-60 Hz. 开关控制信号CSo的频率1/TT为,如,在10 kHz和130kHz之间。 CSo switch control signal frequency 1 / TT as such, between 10 kHz and and 130kHz. 等于或高于20kHz的频率避开了可闻及频率,并且等于或低于130kHz的频率避免显著的开关无效率。 Equal to or higher than the frequency of 20kHz to avoid the audible and frequency, and equal to or lower than the frequency of 130kHz switching to avoid significant inefficiency.

从开关损耗对传输至负载112的能量的方面来说,稳定周期开关策略302为无效率。 From the switching losses of the energy transferred to the loading of 112, the 302 is a stable periodic switching policy inefficiency. 与其相比,过渡开关策略204则更为低效率。 Compared with its transition strategy switch 204 more inefficient.

发明内容 DISCLOSURE

在本发明的一个实例中, 一个系统包括一个生成开关控制信号,以控制开关功率变换器中开关的传导率。 In one embodiment of the invention, a system includes a generator switch control signals to control the switching power converter switches conductivity. 控制开关的电阻率使输入至开关整流器的电流发生与输入至开关整流器的电压电源信号成比例的变化。 Resistivity control switch to switch the input rectifier current generator and voltage signal proportional to the change in the power input to the switch Rectifier. 控制开关的导电性使输入至开关功率变换器的电流发生与输入至开关功率变换器的电压电源信号成比例的变化: Conductive so that the input to the switching power converter current control switch occurs and voltage supply variations proportional to the input signal to the switching power converter:

(i) 开关控制信号的周期与传输至开关功率变换器相连负载的估算功率呈负相关; (I) the period of the switch control signal and transmission power to estimate the switching power converter connected load was negatively correlated;

(ii) 开关控制信号的周期与时变电压电源信号的瞬时电压水平呈负相关;和 Period (ii) switch control signals and variable voltage power supply signal when the instantaneous voltage level of negative correlation; and

(iii) 开关控制信号的周期与时变电压电源信号的线电压水平呈正相关;和 Period (iii) switch control signal varying voltage power supply signal when the line voltage levels were positively correlated; and

14控制器也包括一脉宽发生器与以下至少一个响应以确定开关控制信 The controller 14 also includes a pulse generator and at least one response in order to determine the switching control signal

号的脉宽:(i)开关控制信号的确定周期,(ii)电压电源信号的瞬时电压水平,和(iii)开关功率变换器输出电压信号的电压水平。 Width Number: (i) the determination period switch control signal, the instantaneous voltage level (ii) voltage power supply signal, and (iii) the voltage level of the switching power converter output voltage signal.

在本发明的另外一个实例中, 一种方法包括生成开关控制信号,以控制开关功率变换器中开关的导电性。 In another embodiment of the invention, a method includes generating a switch control signal for controlling the switching power converter switching conductivity. 控制开关的导电性使输入至开关功率变换器的电流发生与输入至开关功率变换器的电压电源信号成比例的变化。 Control switch conductive so that the input to the switching power converter current generator and a voltage signal proportional to the change in the power input to the switching power converter. 此方法另外包括确定开关控制信号的周期,从而使开关控制信号的周期发生与以下因素中至少一个对应的变化: This method further comprises determining the period of the switching control signal, the switch control signal so that the cycle of the occurrence of the following factors corresponding to at least one change:

(i) 开关控制信号的周期与传输至开关功率变换器相连负载的估算功率呈负相关; (I) the period of the switch control signal and transmission power to estimate the switching power converter connected load was negatively correlated;

(ii) 开关控制信号的周期与电压电源信号的瞬时电压水平呈负相关; (Ii) the period of the switch control signal voltage and instantaneous voltage level of the power signal was negatively correlated;

And

(iii) 开关控制信号的周期与时变电压电源信号的线电压水平呈正相 Period (iii) switch control signals and variable voltage power supply signal when the line voltage level was positively

关; Turn off;

此方法也包括与以下至少一个响应以确定开关控制信号的脉宽:(i) 开关控制信号的确定周期,(ii)电压电源信号的电压水平,和(iii)开关功率变换器输出电压信号的电压水平。 This method also comprises at least one of the pulse width in response to the switching control signal is determined: (i) the switching control signal determination period, (ii) the voltage level of the voltage source signal, and (iii) switching power converter output voltage signal voltage level. 此方法另外包括提供开关控制信号至开关功率变换器。 This method further includes providing a switch control signal to the switching power converter.

在本发明的另外一个实例中, 一套装置包括用来生成开关控制信号并控制开关功率变换器中开关模式开关导电性的多种组件。 In another embodiment of the invention, the apparatus comprises means for generating a switch control signal and controls the switch mode power converter switch for switching the conductive variety of components. 控制开关的导电性使输入至开关功率变换器的电流发生与输入至开关功率变换器的电压电源信号成比例的变化。 Control switch conductive so that the input to the switching power converter current generator and a voltage signal proportional to the change in the power input to the switching power converter. 此装置另外包括用来确定开关控制信号的周期, 从而使开关控制信号的周期发生与以下因素中至少一个对应的变化的组件:(i) 开关控制信号的周期与传输至开关功率变换器瞬时功率呈负相 This apparatus additionally includes means for determining the period of the switching control signal, the switch control signal so that the cycle of the occurrence of at least one of the following factors corresponding change in components: (i) the switching cycle of the control signal and transmitted to the instantaneous power switching power converter It was negatively

关; Turn off;

(ii) 开关控制信号的周期与电压电源信号的电压水平改变呈负相关; (Ii) switch control signal voltage level cycle and the voltage supply signal change was negatively correlated;

And

(iii) 开关控制信号的周期与时变电压电源信号的线电压水平呈正相 Period (iii) switch control signals and variable voltage power supply signal when the line voltage level was positively

关;和 Clearance; and

此装置也包括用来与以下至少一个响应以确定开关控制信号的脉宽 This apparatus also includes means responsive to at least one of the following to determine the pulse width of the switching control signal

的组件:(i)开关控制信号的确定周期,(ii)电压电源信号的电压水平,和 Components: determination period (i) the switching control signal, the voltage level (ii) the power supply voltage signal, and

(m)开关功率变换器输出电压信号的电压水平。 (M) the switching power converter output voltage level of the voltage signal. 附图说明 Brief Description

通过参考附图,本领域内的技术人员可更容易理解本发明,并搞清楚它的多种客体,特征和优势。 By reference to the drawings, those skilled in the art may more readily understand the present invention, and figure out its multiple objects, features and advantages. 贯穿多幅图的相同参考数字指的是相同或相似的元件。 FIG across multiple same reference numerals refer to the same or similar elements.

图1 (标记为已有技术)描绘的是一包括开关功率变换器的功率控 Figure 1 (labeled as prior art) depicts a switching power converter includes a power control

制系统。 -System.

图2 (标记的已有技术)描述转换开关控制策略及其在图1所示的开关功率变换器的电感电流中的效果。 Figure 2 (prior art markers) described switch control strategy and its effect in switching power converter shown in Figure 1 of the inductor current.

图3 (标记的已有技术)描绘周期恒定开关策略及其在图1所示的开关功率变换器的电感电流中的效果。 Figure 3 (prior art marker) depicts the cycle of constant switching strategy and its effect in switching power converter shown in Figure 1 of the inductor current. 电感电流中的效果。 Inductor current results.

图4描绘的是一功率控制系统,其特征为具有一开关功率变换器和一控制信号周期-功率传送相关性策略模块。 Figure 4 depicts a power control system, which is characterized by having a switching power converter and a control signal cycle - power transmission related policy module. 图5描绘的是相关波形集合,其系描述初级供电电压,电感电流和 Figure 5 depicts a related set of waveforms, its Department description primary supply voltage, the inductor current and

传送至图4所示的功率控制系统的功率之间的关系。 Power is transmitted to the relationship between power control system shown in Figure 4 between.

图6描述的是高效的周期-瞬时初级供电电压Vx相关策略。 Figure 6 depicts the efficient cycle - Instantly primary supply voltage Vx related strategies.

图7描绘的是相关波形,其系与与电感应电流和图4所示的功率控制系统的开关控制信号相关。 Figure 7 depicts waveforms associated, which system and the power control system shown in FIG induction currents and associated switch control signal.

图8描绘的是功率因数校正(PFC)和图4所示的功率控制系统的输出电压控制器。 Figure 8 depicts a power control system shown in power factor correction (PFC) and output voltage controller.

图9-13描绘的是高效的周期-瞬时初级供电电压Vx相关策略。 Figure 9-13 depicts an efficient cycle - Instantly primary supply voltage Vx related strategies.

图14描绘的是非线性AS调制器。 Figure 14 depicts the nonlinear AS modulator.

图15描绘的是一比例积分器。 Figure 15 depicts a proportional integrator.

图16和17描绘的是均方根值发生器。 Figures 16 and 17 depict the rms value generator.

图18描绘的是PFC和图4所示的功率控制系统的输出电压控制器的另一个实例。 Figure 18 depicts another example of the power control system shown in PFC and output voltage controller.

图19-21描绘的是高效的周期-功率转换-瞬时初级供电电压相关策略,以增加初级供电RMS电压和功率转换百分比。 Figure 19-21 depicts an efficient cycle - power conversion - the instantaneous primary supply voltage related strategies to increase the primary power supply RMS voltage and power conversion percentage.

具体实施方式 DETAILED DESCRIPTION

一个功率控制系统包括一开关功率变换器和控制器,通过生成对如下至少一种产生相应变化的开关控制信号,此控制器对时变电压电源信号做出反应:i)开关控制信号的周期与传送至与开关功率变换器相连的负载的确定功率呈负相关;(ii)开关控制信号的周期与电压电源信号的瞬时电压水平呈负相关;和(iii)开关控制信号的周期与时变电压电源信号的线电压水平呈正相关。 A power control system comprises a switching power converter and a controller to produce a corresponding change in at least one of the following switching control signal generated by this control signal to the time varying voltage source to react: i) the period of the switching control signal power transmission to determine the load connected to the switching power converter is negatively correlated; instantaneous voltage level (ii) switch control signal and voltage supply signals a period of negative correlation; variable voltage and time, and (iii) the period of the switch control signal power line voltage level signals a positive correlation. 功率控制系统也包括一脉宽发生器,用于确定开关控制 Power control system also includes a pulse generator, for determining a switch control

信号的脉宽,作为对如下因素的反应:(i)开关控制信号的确定周期,(ii) 电压电源信号的瞬时电压,及(iii)开关功率变换器输出电压信号的电压水平。 Pulse signal, as a reaction to the following factors: (i) the switch control signal determination period, the instantaneous voltage (ii) voltage power supply signal, and (iii) the voltage level switching power converter output voltage signal. 因此,周期可以根据变量的单相函数,双相函数或三相函数确定。 Thus, the cycle can be determined according to the single-phase function variables, bipolar function or three functions.

(i) 传送至与开关功率变换器相连的负载的确定功率;(ii)电压电源信号的瞬时电压水平;和(iii)时变电压电源信号的线电压水平(总体被称作"周期确定变量")。 (I) determining a power transferred to the switching power converter connected to a load; instantaneous voltage level (ii) a voltage supply signal; and (iii) the time-varying signal voltage supply line voltage level (generally referred to as "cycle determining variable "). "单相函数"指的是周期确定变量(i),(ii),或(iii)中任意一种被用来确定开关控制信号周期。 "Single-phase function" refers to the period to determine the variable (i), (ii), or (iii) any one control signal is used to determine the switching period. "双相函数"指的是周期确定变量(i), "Duplex function" refers period determined variable (i),

(ii) ,或(iii)中的任意两种被用来确定开关控制信号周期。 (Ii), or any two (iii) the control signal is used to determine the switching period. "三相函数"指的是周期确定变量(i),(ii),或(iii)中的任意三种被用来确定开关控制信号周期。 "Three-phase function" refers to the period to determine the variable (i), (ii), or any three (iii) the control signal is used to determine the switching period.

对具有近似正弦波电压电源信号的电力供应,当电压电源信号的相位角在45。 The electricity supply has an approximately sinusoidal voltage supply signal when the phase angle between voltage power supply signal 45. 和135。 And 135. 之间时开关整流器从电压电源传输80%的功率至负载。 When the voltage between the power transmission from the switching regulator 80 percent of power to the load. 开关功率变换器中的开关损耗随着开关周期降低而减少,或换言之, 开关功率变换器中的开关损耗随着开关频率的升高而增加。 Switching power converter switching losses along with lower switching cycle is reduced, or in other words, the switching power converter switching losses with increasing switching frequency increases. 通过改变开关控制信号的周期,周期可根据周期确定变量的单相函数,双相函数或三相函数产生相应变化,在至少一个实例中,当提供功率因数校正(PFC)时, 控制器在具有相关开关损耗的开关周期和周期确定变量之间实现高效相关性。 By changing the switch control signal cycle, the cycle can be determined according to the period corresponding change in a single variable phase function, bipolar function or three functions, in at least one instance, while providing power factor correction (PFC), the controller having switching losses associated switching cycles and cycle determines efficient correlation between variables.

图4描绘的是具有开关功率变换器402和高效控制信号周期发生器408的功率控制系统400 。 Figure 4 depicts a power control system 400 includes a switching power converter 402 and efficiency control signal generator 408 cycles. 在至少一个实例中,开关功率变换器402 的设置方法如开关功率变换器102—样。 In at least one example, the method of switching power converter 402 is provided as switching power converter 102- comp. 整流器103整流由电压电源404提供的输入电压VIN以生成时变的初级供电电压Vx。 Rectifier 103 rectifying provided by the voltage supply input voltage VIN 404 to become the primary power generating voltage Vx. 在至少一个实例中,电压电源404与电压电源101相同,丰lr入电压Vin与电源电压Vmains相同。 In at least one instance, a voltage supply and voltage supply 101 404 same, the same abundance lr input voltage Vin and the power supply voltage Vmains. 功率控制系统400也包括PFC和输出电压控制器406 。 Power control system 400 also includes a PFC and output voltage controller 406. PFC和输出电压控制器406使用代表初级供电电压Vx和输出电压Vc的反馈信号生成开关控制信号CS^ PFC和输出电压控制器406包括高效控制信号周期发生器408 ,以有效地关联开关控制信号CS,的周期TT和周期确定变量从而,例如,增加功率控制系统400的效率。 PFC and output voltage controller 406 used on behalf of the primary supply voltage Vx and the output voltage Vc of the feedback signal generates a switch control signal CS ^ PFC and output voltage controller 406 includes a control signal effective period generator 408, in order to effectively correlate the switch control signal CS , and the period of the cycle TT is determined variables whereby, for example, increase the efficiency of the power control system 400.

在至少一个实例中,此周期确定变量为:i)传送至负载112的确定功率,(ii)初级供电电压Vx的瞬时电压水平,和(iii)初级供电电压Vx 的线电压水平。 In at least one example, this period is determined as a variable: i) determining transmit power to a load 112, (ii) the instantaneous voltage levels of the primary supply voltage Vx, and (iii) a primary supply voltage Vx level of the line voltage. 在至少一个实例中,传输至负载112的估计功率通过将平均输出电压Vc (通过电压控制回路418获得)和开关整流器402的平均输出电流i0UT相乘估算出。 In at least one example, the transmission of power to the load 112 by the estimated average output voltage Vc (obtained by the voltage control loop 418) and the average output current of the rectifier switching i0UT 402 multiplied estimated. 在至少一个实例中,传送至负载112的估计功率用"K"表示,并通过图8所示的负载功率需求估算器803确定。 In at least one example, load 112 is transmitted to the estimated power with "K" indicated by FIG load power demand estimator 803 in FIG. 8 is determined. 在至少一个实例中,初级供电电压Vx的瞬时电压水平代表初级供电电压Vx的一个值,此值通过比率约等于1/TT (1/TT代表开关控制信号CS,的频率)的电压回路416抽样得出。 In at least one example, the instantaneous voltage level of the primary supply voltage Vx represents a value of the primary supply voltage Vx, and this value is approximately equal to 1 / TT by the ratio (1 / TT denotes a switch control signal CS, a frequency) of the voltage sampling circuit 416 drawn. 所谓"瞬时"包括延时,如在初级供电电压Vx的抽样值获取中的任何传输和处理延时。 The so-called "instant" includes delay as any delay in the transmission and processing of the sample value of the primary power supply voltage Vx get in. 在至少一个实例中,初级供电电压Vx的线电压水平代表至少一个周期的初级供电电压Vx 。 In at least one example, the line voltage level represents a primary supply voltage Vx at least one primary supply voltage Vx cycle. 例如,在至少一个实例中,线电压水平是初级供电电压Vx的均方根(RMS),初级供电RMS电压的峰值Vx—rms,或初级供电电压Vx, 的平均值。 For example, at least one example, the line voltage level of the supply voltage Vx primary root mean square (RMS), the RMS voltage of the primary power peak Vx-rms, or primary supply voltage Vx, the average value. 例如,在美国线电压标称为120 Vrms ,而在欧洲则标称为230 Vrms,其中,"Vrms,,代表1个RMS伏特。 一般来说,线电压水平和负载功率需求将在50-240 Hz的频率更新,瞬时电压将会以开关108的开关频率更新,如开关控制信号CS,的频率。 For example, in the United States the line voltage is nominally 120 Vrms, while in Europe it is nominally 230 Vrms, which, "Vrms ,, on behalf of an RMS volts. In general, the line voltage levels and load power demand in 50-240 Frequency Hz update, instantaneous voltage switch 108 will be in the switching frequency of updates, such as the switch control signal CS, frequency.

在至少一个实例中,所述高效控制信号周期发生器408包括一控制信号周期策略,以使PFC和输出电压控制器406生成开关控制信号CS,的周期TT (根据至少一种周期确定变量变化)。 In at least one example, the effective control period signal generator 408 includes a control signal cycle strategy, so that the PFC and output voltage controller 406 generates a switch control signal CS, the period TT (determined in accordance with at least one variable change cycle) .

图5描述的是相关波形500的合集,其系描述初级供电电压VX 502,电感电流iL504和从电压电源404传送至开关整流器402的功率506之间的相关性。 FIG. 5 is a waveform associated collection 500, which describes a primary supply voltage line VX 502, and a correlation iL504 inductor current from voltage source 404 is transmitted to the switch 402 of power converter 506 between. 初级供电电压Vx周期的一半发生于相位角0-45 和135-180。 Half of the supply voltage Vx primary cycle occurs in the phase angle 0 -45 and 135 -180 . 初级供电电压Vx的RMS电压等于在相位角45和135 Primary supply voltage Vx RMS voltage equal to the phase angle of 45 and 135

19的电压。 Voltage 19. 如此,在等于初级供电电压Vx的半个周期TT的时间,初级供电电压Vx大于初级供电RMS电压Vx—rms,而在等于半个周期TT 的时间,小于初级供电RMS电压Vx—rms。 Thus, in the primary supply voltage Vx is equal to a half cycle time TT, the primary supply voltage Vx is greater than the RMS voltage of the primary power supply Vx-rms, and in equal half-cycle time TT, the primary power supply is less than the RMS voltage Vx-rms. 正弦波初级供电电压Vx的峰值电压为々2.VX—rms。 Sine wave peak voltage of the primary supply voltage Vx is 々 2.VX-rms. 为提供功率因素校正,PFC和输出电压控制器406生成开关控制信号CS,,以使平均电感电流iL 508追踪初级供电电压Vx。 To provide power factor correction, PFC and output voltage controller 406 generates a switch control signal CS ,, so that the average inductor current iL 508 track primary supply voltage Vx. 从电压电源404传送至开关整流器402的功率506等于Vx • iL。 Transferred from the voltage supply 404 to switch power converter 506 is equal to 402 Vx • iL. 当初级供电电压Vx大于初级供电RMS电压Vx—rms时,功率506 的百分之八十被传送至开关整流器402,当当初级供电电压Vx小于初级供电RMS电压Vx—RMs时,功率506的百分之二十被传送。 Time when the primary power supply voltage Vx is greater than the primary RMS voltage Vx-rms, 506 eighty percent of the power is transmitted to the switching regulator 402 that, when the primary power supply voltage is less than the primary supply RMS voltage Vx Vx-RMs, 506 percent power for twenty it is transmitted. 换言之, 当初级供电电压Vx在相位角45和135之间时,功率506的80%被传送,当处于初级供电电压Vx波谷时,功率506的20%被传送。 In other words, when the primary power supply voltage Vx in the phase angle between 45 and 135 , power is transferred 80% of 506, when in the primary supply voltage Vx trough, power 506 20% is transmitted. 在至少一个实例中,初级供电电压Vx的波谷低于初级供电RMS电压Vx一薩,对正弦波,其相位角在0-45和135-180。 In at least one instance, the primary supply voltage Vx the valley below the primary power supply RMS voltage Vx a Bodhisattva, a sine wave, the phase angle of 0 -45 and 135 -180 .

因为寄生阻抗,每次开关108切换于绝缘和传导状态时开关整流器402产生开关损耗。 Because parasitic impedances, each switch 108 to switch to the insulating and conductive state switch rectifier 402 switching loss. 在开关控制信号CS!的每个周期TT,功率被用于, 例如,充电寄生电容132 。 In the switch control signal CS! Each cycle TT, power is used, for example, charging of the parasitic capacitance 132. 在开关控制信号CS,的每周期TT,开关整流器402产生开关损耗。 In the switch control signal CS, the weekly period TT, the switching regulator 402 produces switching loss. 因此,控制信号CS,的频率越高,开关损耗越高。 Thus, the control signal CS, the higher the frequency, the higher the switching losses.

根据图1-5 ,关于传统过渡开关策略204 ,开关控制信号CSo的频率在相位角0。 According to Figure 1-5, on the traditional strategy of transition switch 204, switch control signal CSo frequency in phase angle of 0. -45。 -forty Five. 和135-180为最高。 And 135 -180 is the highest. 因此,在最低量的功率从电压电源101传送至开关整流器102的时间内统过渡开关策略204引起最大的开关损耗。 Therefore, within the minimum amount of power transmitted from voltage supply 101 to 102 times the switching regulator system 204 transition switch tactics caused the greatest switching losses. 在至少一个实例中,与传统过渡开关策略204相关的开关损耗中超过一半(>50%)发生于20%功率从电压电源101至开关整流器102的传送过程中。 In at least one instance, the traditional strategy of transition switch 204 switching losses associated with more than half (> 50%) occurred in 20% of the power supply 101 to switch from the voltage converter transfer process 102. 稳定周期开关策略302则更为高效因为与传统过渡开关策略204相关的开关损耗中只有大约一半(50%)发生于20%功率从电压电源101至开关整流器102的传送过程中。 302 stable periodic switching strategy more efficient because, unlike the traditional strategy of transition switch 204 associated switching losses, only about half (50%) occurred in 20% of the power supply 101 to switch from the voltage converter transfer process 102.

20在至少一个实例中,高效控制信号周期发生器408使PFC和输出电压控制器406通过增加开关控制信号CS,的周期TT以改善功率控制系统400的功率。 20 In at least one example, the effective period control signal generator 408 so that PFC controller 406 and the output voltage by increasing the switching control signal CS, TT cycle to improve the power of the power control system 400. 或换言之,在低功率传送至负载112 ,低瞬时初级供电电压Vx和(或)高初级供电RMS电压Vx—RMs时降#<开关108的开关率。 Or in other words, at low power delivered to the load 112, the primary low transient supply voltage Vx and (or) the primary supply high RMS voltage drop Vx-RMs # <switch 108 switching rate. 表1阐述典型开关损耗和功率转换率对比。 Table 1 illustrates a typical switching losses and power conversion rate of contrast. 实际节电和优化的开关控制信号CS!周期TT发生策略取决于功率控制系统400的功率器件。 The actual energy-saving and optimization switch control signal CS! Cycle TT occur strategy depends on the power control system power device 400.

<table>table see original document page 21</column></row> <table>表1 <Table> table see original document page 21 </ column> </ row> <table> Table 1

如前文所述,在至少一个实例中,初级供电电压vx的波谷低于初 As mentioned above, at least one example, the primary supply voltage vx trough below First

级供电RMS电压VXRMS ,对正弦波,其相位角在0-45和135-180。 RMS voltage supply level VXRMS, sine wave, the phase angle at 0 -45 and 135 -180 .

图6描述的是对高效控制信号周期发生器408,典型的高效周期-瞬时初级供电电压Vx关联策略600 。 Figure 6 depicts the control signals for efficient cycle generator 408, a typical efficient cycle - Instantaneous primary supply voltage Vx 600 associated with the policy. 根据图5和6 ,随着初级供电电压Vx向峰值电压a/2.Vx—rms增加时,从电压电源404传送至开关整流器402的功率非线性增加。 According to FIG. 5 and 6, with the primary supply voltage Vx 2.Vx-rms peak voltage increases to a /, from the voltage source 404 is transmitted to the switching power converter 402 increases non-linearly. 对任何初级供电电压Vx和开关功率变换器402输出功率的给定值,存在优化开关周期TT。 For a given value of any primary supply voltage Vx and the output power of the switching power converter 402, there are optimized switching period TT. 此优化周期通常在初级供电电压Vx的波谷时增加。 This optimization cycle typically increases during the primary supply voltage Vx trough. 若周期TT太短,则会存在过度的开关损失。 If the period is too short TT, excessive switching loss is present. 若周期TT太长,寄生阻抗中将会存在过量损耗,如开关108和感应器110各自的阻抗及感应器110的芯损耗。 If the cycle TT is too long, parasitic resistance in the presence of excess losses will be, as the switch 108 and inductor 110 and inductor impedance of each of the core loss of 110. 高效周期-瞬时初级供电电压Vx关联策略600提供策略以确定周期TT为瞬时初级供电电压Vx的函数。 Efficient cycle - Instantaneous primary supply voltage Vx 600 provides policy associated with a policy to determine the period TT instantaneous primary function of the supply voltage Vx. 周期TT的优化值的实际值与设计选择相关,并且,如,取决于开关整流器402的各部件的值,如感应器110 ,开关108 ,电容器106 , 二极管111的特性,以及瞬时初级供电电压Vx ,初级供电RMS电压Vx—RMs和传送至负载112的功率。 The actual value of the optimal values of cycle TT associated with the design choices, and, like, depending on the value of the components of the switching regulator 402, such as sensors 110, switch 108, 106, 111 of the diode characteristics of the capacitor, and the instantaneous primary supply voltage Vx primary power supply RMS voltage Vx-RMs and power delivered to the load 112. 在至少一个实例中,功率控制系统400比常规功率控制系统100更有效率,因为开关108的开关频率随着电压电源404提供的功率的增加而增加,从而,控制器实现开关周期与开关108的相关开关损耗之间的高度关联。 In at least one example, the power control system 400 than the conventional power control system 100 is more efficient, because the switching frequency of switch 108 increases the voltage supply 404 provides power increases, thus, controllers of the switch 108 switching cycle high degree of correlation between the relevant switching losses.

在至少一个实例中,开关整流器402运行于DCM中。 In at least one example, the switching operation of the rectifier 402 in DCM. 譬如说,控制信号CS,的频率1/TT介于10 kHz and 130 kHz之间。 For example, the frequency of the control signal CS, the 1 / TT between 10 kHz and 130 kHz. 开关控制信号CS,的周期TT和诱导电流iL波形504中描绘的诱导电流iL各循环持续延长,以便于提高视觉清晰度。 Switch control signal CS, TT and induction period of the current waveform iL 504 iL depicted each cycle induced current for an extended period, in order to improve visual clarity.

图7描绘的是典型电感电流^和开关控制信号CS,之间典型关联波形700。 Figure 7 depicts a typical inductor current ^ and switching control signal CS, association between typical waveform 700. 在开关控制信号CS,的各脉宽的周期Tl中,电感电流k随着乂人电压电源404传送至感应器110而升高。 In the switch control signal CS, the width of each period Tl, the inductor current k-voltage power supply 404 people with qe transmitted to the sensor 110 increases. 在回扫时间T2 ,电感电流iL随着感应器储能量充电电容器106降低。 In the flyback period T2, the inductor current iL with charging capacitor energy storage inductor 106 is reduced. 平均电感电流iLAVG706追踪初级供电电压Vx从而提供功率因素校正。 Tracking the average inductor current iLAVG706 primary supply voltage Vx to provide power factor correction.

图8描述的是PFC和输出电压控制器800,其系代表PFC和输出电压控制器406的一个实例。 Figure 8 depicts the 800, an instance of the PFC and output voltage controller or on behalf of the PFC and output voltage controller 406. PFC和输出电压控制器800依据由控制信号周期发生器策略模块802实施的开关控制信号发生策略确定开关控制信号CSi。 PFC and output voltage controller 800 based on the control signal cycle generator module 802 to implement the policy of switching control signal generating policy determines the switch control signal CSi. 高效控制信号周期发生策略模块802代表高效控制信号周期发生器408的一个实例。 Efficient control signal cycle occurs policy module 802 representatives of efficient control of one instance of signal cycle generator 408. 在至少一个实例中,控制信号周期发生策略模块802生成TT,作为以下中至少一个的函数:瞬时初级供电电压Vx 和传送至负载112的估计功率。 In at least one instance, the control signal generation cycle occurs policy module 802 TT, as at least one of the following function: instantaneous primary supply voltage Vx and delivered to load 112 of the estimated power. 在至少一个实例中,此控制信号周期策 In at least one instance, the control signal cycle policy

22略模块802生成TT为初级供电电压Vx和传送至负载112的估计功率两者的函数。 22 TT slightly module 802 generates a primary supply voltage Vx and the estimated power delivered to the load function of both 112.

PFC和输出电压控制器800确定周期TT和开关控制信号CS,的脉宽Tl ,以,例如,对开关整流器402提供功率传送效率和功率因素校正。 PFC and output voltage controller 800 determines the cycle TT and the switch control signal CS, the pulse width Tl, with, for example, the switching regulator provides power transmission efficiency and power factor correction 402. 在至少一个实例中,传送至负载112的估计功率由"K"代表,为功率控制回路418中的负载功率需求估算器803的输出值。 In at least one example, the estimated transmit power to the load 112 by the "K" representative of the power control circuit 418 of the power load demand estimated output value of 803. 在至少一个实例中,脉宽周期Tl的平方,如Tl2 ,根据等式1确定。 In at least one example, the square pulse period Tl, e.g. Tl2, determined according to equation 1.

1 1

"T1"为控制信号CS,的脉宽(接通持续时间)。 "T1" for the control signal CS, the pulse (ON duration). "L"表示电感器110 的电感值。 "L" represents the inductance value of the inductor 110. Vx—rms代表初级供电RMS电压Vx—rms。 Vx-rms on behalf of the primary power supply RMS voltage Vx-rms. "K"代表负载112 的功率需求的估计值,它由负载功率需求估计器803确定。 "K" representative of the power load demand estimated value 112, which consists of the load estimator 803 determines the power demand. "TT"是控制信号CS,的周期,它由控制信号周期生成策略模块802生成。 "TT" is a control signal CS, the cycle, which is generated by the control module 802 generates a signal cycle policy. "Vx"为初级供电电压Vx的当前值的采样值。 "Vx" sample values to the current value of the primary power supply voltage Vx. "Vc"为连接电压Vc的抽样值。 "Vc" connected sample value voltage Vc. 在优选实例中,此计算用适当换算值和工作长度进行定点运算实现。 In a preferred embodiment, this calculation in terms of value and work with the appropriate length of fixed-point arithmetic implementation.

RMS值发生器804从取样初级供电电压Vx,确定初级供电RMS 电压Vx—固s。 RMS value generator 804 from sampling the primary supply voltage Vx, determine the primary power supply RMS voltage Vx- solid s. 模块806接收初级供电RMS电压Vx—RMs值并确定2*L/(VX—rms2)。 Module 806 receives the primary power supply RMS voltage value and determines Vx-RMs 2 * L / (VX-rms2). "2.L/(VX—rm浐),,代表一标度因子。升压因子模块808确定升压因子(1-Vx/Vc).。乘法器810将开关控制信号CS,周期TT,模块806的输出值,升压因子模块808的输出值及估计功率需求K相乘以生成Tl2 。非线性AS调制器812确定开关控制信号CS!的脉宽Tl 。脉宽调制器(PWM)814接收脉宽时间Tl和周期TT,并生成开关控制信号CS,,从而使开关控制信号CS,具有脉宽Tl和周期TT 。 "2.L / (VX-rm Chan) ,, represents a scaling factor. Boost factor module 808 determines the boost factor (1-Vx / Vc) .. multiplier 810 will switch control signal CS, period TT, module output value 806, the boost factor module 808 and an output value of K is multiplied by the estimated power requirement to generate Tl2. Nonlinear AS modulator 812 determines the switch control signal CS! pulse width Tl. pulse width modulator (PWM) 814 receives pulse time period Tl and TT, and generates switch control signal CS ,, so that the switch control signal CS, has the pulse width Tl and the period TT.

23在至少一个实例中,为确保开关整流器402运转与DCM 110的L值根据等式[2]设定。 23 In at least one example, the switching regulator 402 to ensure that the value of L with DCM 110 in operation according to equation [2] is set.

感应器 Inductor

L — Vmin /[(Pmax'J)'(2'fmax) L - Vmin / [(Pmax'J) '(2'fmax)

1 -々2 1 -々2

,

V V

cap ■ cap ■

[2] [2]

"L"感应器110的值。 "L" value of the sensor 110. "Vmin,,是初级供电RMS电压Vx—的最小预期值。"Pmax"负载112的最大需求功率。"J"为过度设计系数,任何大于1的值表明过度设计。在至少一个实例中,"J"为1.1 。"fmax"为控制信号CS,的最大频率。"Vc"为标称输出电压Vc。回扫时间T2可依据等式[3]确定。 "Vmin ,, is the minimum expected value of the primary power supply voltage Vx- of RMS." Pmax "112 greatest demand load power." J "for the over-design factors, any value greater than 1 indicates that over-designed. In at least one instance," J "is 1.1." fmax "control signal CS, the maximum frequency." Vc "is the nominal output voltage Vc. flyback period T2 can be based on Equation [3] OK.

[3] [3]

在至少一个实例中,为避免感应器110饱和,感应器110的L值可使电感电流的峰值iL—PEAK大于或等于VX.T1/L的最大值。 In at least one example, in order to avoid saturation sensor 110, the sensor 110 can make the L value of the peak inductor current iL-PEAK VX.T1 greater than or equal to the maximum value / L of. 低线电压运行中初始电源电压Vx达到峰值实现全输出功率时,输入电流峰值1l peak发生。 Low line voltage operation in primary supply voltage Vx peaked achieve full output power, input current peak 1l peak occurs.

被PFC和输出电压控制器406用来确定开关控制信号CS,周期的高效控制信号周期发生策略与设计选择相关,并可优化开关功率变换器402的效率。 By PFC and output voltage controller 406 is used to determine the switching control signal CS, efficient control signal cycle period associated with the occurrence of policy design choices, and to optimize the efficiency of the switching power converter 402.

24此外,在至少一个实例中,可能初级供电电压水平的范围也可影响周 24 In addition, in at least one instance, the range of primary supply voltage level may also affect weeks

期TT的时间。 TT time period. 例如,以保留于DCM操作,对高线电压条件,增加周期TT以保留于DCM操作。 For example, in order to remain in the DCM operation, high line voltage conditions, increase cycle TT to preserve in DCM operation.

图9-13描述的是典型的高效周期-瞬时初级供电电压Vx关联策略。 Figure 9-13 depicts a typical efficient cycle - Instantaneous primary supply voltage Vx associated policies. 用来提供高效周期-瞬时初级供电电压Vx关联的此特定策略取决于很多运行参数,如功率控制系统(如功率控制系统400)的组件值,运行频率和传送至负载112的功率。 To provide efficient cycle - this particular policy instantaneous primary supply voltage Vx association depends on many operating parameters, such as power control system (such as power control system 400) of the component values, the operating frequency and the power delivered to the load 112. 图9-13阐述各种提供高效周期-瞬时初级供电电压Vx关联的策略。 Figure 9-13 describes a variety of efficient cycle - Instantaneous associated primary supply voltage Vx strategy. 其它周期-瞬时初级供电电压Vx关联策略与开关控制信号CS,周期呈负相关,瞬时初级供电电压Vx可用于(基于设计选择),如功率控制系统的运行参数。 Other periods - Instantly primary supply voltage Vx related strategies and switch control signal CS, the cycle is negatively correlated instantaneous primary supply voltage Vx can be used (based on the design choices), operating parameters such as power control system.

图9描述的是高效周期-瞬时初级供电电压Vx关联策略900 。 Figure 9 illustrates the effective period - instantaneous primary supply voltage Vx 900 associated with the policy. 初级供电电压Vx从0变至0.75 • a/2.Vx一rms时周期TT呈线性下降,直至初级供电电压Vx等于々2.Vx—rms时才保持恒定。 Primary supply voltage Vx is changed from 0 to 0.75 • a time / 2.Vx a rms cycle TT decreased linearly until the primary supply voltage Vx is equal to only maintain a constant 2.Vx-rms 々. 高于电压Vb的恒定周期TT设定开关控制信号CSi开关频率的上限,例如可以阻止开关108的过量开关损耗。 Higher than the voltage Vb constant cycle TT upper limit setting switch control signal CSi switching frequency, for example, switch 108 may prevent excessive switching losses.

图10描述的是高效周期-瞬时初级供电电压Vx关联策略1000。 Figure 10 illustrates the efficient cycle - Instantaneous primary supply voltage Vx 1000 associated with the policy. 高效周期-瞬时初级供电电压Vx关联策略1000维持稳定的开关控制信号CS,周期TT直至初级供电RMS电压Vx—RMs等于0.25'Vx—rms,然后呈线性下降直至初级供电RMS电压Vx—rms等于0.75 • a/2.Vx一rms ,然后保持恒定直至初级供电RMS电压Vx—rms等于々2*VX—rms。 Efficient cycle - Instantaneous primary supply voltage Vx 1000 associated with the policy to maintain the stability of the switch control signal CS, TT period until the primary supply RMS voltage Vx-RMs equal 0.25'Vx-rms, then decreased linearly until primary power supply Vx-rms RMS voltage equal to 0.75 • a / 2.Vx a rms, and then remains constant until the primary supply voltage Vx-rms RMS equal 々 2 * VX-rms. 高于电压VA的稳定周期TT设定开关控制信号CS,开关频率的上限,例如可以阻止开关108的过量开关损耗。 The stabilization period is higher than the voltage VA TT setting switch control signal CS, the upper limit of the switching frequency, for example, switch 108 can prevent excessive switching losses. 低于电压Vs的稳定周期TT设定开关108开关频率的下限,例如可以避开处于人可闻及频段的频率。 Stabilization period is less than the voltage Vs TT set lower limit switch 108 switching frequency, for example, people could be heard and to avoid in-band frequency.

图11描述的是高效周期-瞬时初级供电电压Vx关联策略1100 。 Figure 11 depicts the efficient cycle - Instantaneous primary supply voltage Vx 1100 associated with the policy. 高效周期-瞬时初级供电电压Vx关联策略1100系阶跃函数,周期TT Efficient cycle - Instantaneous primary supply voltage Vx 1100 Series step function associated with the policy cycle TT

25只需取决于一步一步地转变。 25 Simply change depending on step by step. 其系阶跃函数,周期TT只需取决于一步一步地转变。 Its line step function, depending on the cycle TT just one step change.

图12描述的是高效周期-瞬时初级供电电压Vx关联策略1200 。 Figure 12 depicts the efficient cycle - Instantaneous primary supply voltage Vx 1200 associated with the policy. 高效周期-瞬时初级供电电压Vx关联策略1200最初随着初级供电RMS电压Vx—rms从0增加而增加,其后当初级供电电压Vx接近于々2.VX—rms时,呈非线性下降。 Efficient cycle - Instantaneous primary supply voltage Vx 1200 associated with the policy as the primary initial supply Vx-rms RMS voltage increases from zero thereafter when the primary power supply voltage Vx close 々 2.VX-rms, non-linear decrease. 虽然高效周期-瞬时初级供电电压Vx关联策略1200短暂增加,但它仍使开关控制信号CS!的周期TT与瞬时初级供电电压Vx呈负相关。 Although efficient cycle - Instantaneous primary supply voltage Vx Relevance transient increases in 1200, but it still makes the switch control signal CS period TT instantaneous primary supply voltage Vx negative correlation!. 在至少一个实例中,高效周期-瞬时初级供电电压Vx关联策略1200使感应器110接近々包和。 In at least one instance, efficient cycle - Instantaneous primary supply voltage Vx 1200 associated with the policy of the induction package and 110 close 々.

图13描述的是高效周期-瞬时初级供电电压Vx关联策略1300。 Figure 13 illustrates the efficient cycle - Instantaneous primary supply voltage Vx 1300 associated with the policy. 高效周期-瞬时初级供电电压Vx关联策略1300通常呈平方地下降直至初级供电电压Vx等于々2'V、rms。 Efficient cycle - Instantaneous primary supply voltage Vx 1300 associated with the policy generally drops with the square until the primary supply voltage Vx equal 々 2'V, rms.

高效控制信号周期发生器408使用的特定周期-瞬时转变关联策略与设计选择相关,并适应如下变量:例如,效率,功率因素校正,计算复杂度和组件特性。 Efficient control signal generator 408 cycles specified period - instantaneous transition associated policy-related and design choose and adapt the following variables: for example, efficiency, power factor correction, computational complexity and component features. 在此优选实例中,周期发生器408应用于数字逻辑并接受输入值的数字化体现。 In the preferred embodiment, the cycle of the generator 408 is applied to digital logic and accept digitized reflect the input value. 高效控制信号周期发生器408可用众多方法中任意一种以生成开关控制信号CS,周期TT 。 Efficient control signal cycle generator 408 can be used in any one of the many ways to generate the switch control signal CS, period TT. 例如,控制信号周期发生策略模块802使用的周期-瞬时初级供电电压Vx策略可作为算法储存,控制信号周期发生策略模块802可根据此算法确定开关控制信号CS!周期TT 。 For example, the control signal cycle generation cycle policy module 802 used - Instantly primary supply voltage Vx policies can be stored as an algorithm, a control signal cycle occurs policy module 802 may determine the switch control signal CS period TT According to this algorithm!. 另外一个实例中,周期-功率转换关if关策略可储存于可选记忆体816。 Another example, the cycle - if Off Off power conversion policy can be stored in the optional memory 816. 在至少一个实例中,此记忆体816包括一关联周期TT值和初级供电电压Vx值的查表。 In at least one instance, this memory 816 includes an associated cycle TT value and primary supply voltage Vx value lookups. 然后,控制信号周期发生策略模块802可基于初级供电电压Vx的值恢复周期TT的值。 Then, the control signal cycle occurs policy module 802 may be based on the value of the recovery period TT primary supply voltage Vx value.

在至少一个实例中,PFC和输出电压控制器800作为可编程的PFC和输出控制电压控制器应用。 In at least one instance, PFC and output voltage controller 800 as programmable control PFC and output voltage controller applications. 其描述于美国专利申请第11/967,275 号,题为"可编程的功率控制系统,,(申请于2007年12月31日,专利 Which is described in US Patent Application No. 11 / 967,275, entitled "Programmable power control system ,, (filed on December 31, 2007, patent

26权人Cirrus Logic公司,发明人John L. Melanson )。 26 owners of Cirrus Logic Inc., inventor John L. Melanson). 美国专利申请第11/967,275号描述典型的系统和方法,并以引用方式并入本文。 U.S. Patent Application No. 11 / 967,275 describes a typical systems and methods, and are incorporated by reference herein. 因为优化周期取决于开关组件的设计选择,高效周期信号算法的可编程性使每个设计在利用PFC和输出电压控制器800的相同集成电路实例时,对效率特别优化。 Because depending on the design optimization cycle selection switch components, efficient programmable periodic signal algorithm so that each integrated circuit design using the same instance of PFC and output voltage controller 800 when specifically optimized for efficiency.

图14显示的是非线性AS调制器1400 ,其系代表非线性A-2 调制器812的一个实例。 Figure 14 shows the nonlinear AS modulator 1400, which represents an instance of a nonlinear system A-2 modulator 812. 非线性Ai:调制器1400调节开关功率变换器402的非线性功率传递进程。 Nonlinear Ai: modulator 1400 regulating switching power converter 402 of the nonlinear power transfer process. 开关功率变换器402的非线性功率传递进程可建立数学模型,即为平方函数,x2。 Switching power converter 402 nonlinear power transfer process can be a mathematical model, is a square function, x2. 非线性Ai:调制器1400包括非线性系统反馈模块1402,由x2表示。 Nonlinear Ai: modulator 1400 includes a non-linear system feedback module 1402, it is represented by x2. 反馈模块1402的输出为延迟-1数字转换器输出信号T1的平方,如[Tl(nl)]2。 Output feedback module 1402 is delayed -1 digital converter output signal T1 square, such as [Tl (nl)] 2. 延迟z" 1406表示延迟-1数字转换器的输出信号Tl。负[Tl(nl)]2通过加算器1412加入Tl2 。非线性调制器1400包括一独立于数字转换器1408的补偿模块1404 。非线性补偿模块1404处理环路滤波器1410的输出信号, 即用平方根函数x1/2以补偿非线性反馈模块1402所产生的非线性。补偿模块1404的输出被数字转换器1408量子化以生成开关控制信号CSi 脉宽Tl。 Delay z "1406 represents delayed -1-digital converter output signal Tl. Negative [Tl (nl)] 2 is added by adder 1412 Tl2. Nonlinear modulator 1400 includes a separate digital converter module 1408 1404 Compensation Non- linear compensation module 1404 process the output signal of the loop filter 1410, which uses non-linear square root function x1 / 2 to compensate for the resulting nonlinear feedback module 1402. The output of the compensation module 1404 is quantized digital converter 1408 to generate a switch control CSi signal pulse width Tl.

图15描述的是PI补偿器1500 ,其系代表负载功率需求估算器803的一个实例。 Figure 15 depicts the PI compensator 1500, an instance of which are representatives of load power demand estimator 803. PI补偿器1500生成负载功率需求信号K 。 PI compensator 1500 generates the load power demand signal K. 负载功率需求信号K在如下情况发生变化:参考电压Vref和输出电压Vc之间的差异变化时时,由错误发生器1501生成的错误信号ev变化时。 Load power demand signal K changes in the following cases: a reference voltage Vref and the difference in change from time to time between the output voltage Vc, the error signal generated by the error generator ev 1501 changes. 参考信号VreF为被设置为输出电压Vc的期望值。 VreF reference signal is set to the output voltage Vc expectations. PI补偿器1500包括积分信号通道1502和比例信号通道1504。 PI compensator 1500 includes integrated signal path 1502 and 1504 the proportion of the signal path. 积分信号通道1502包括一积分器1506以合并错误信号ev和一增益模块1508以将错误信号ev的积分乘以增益因子g2并生成完整的输出信号IPW。 Integrated signal path 1502 includes an integrator to merge error signal ev 1506 and 1508 to a gain block error signal ev integral by a gain factor g2 and generate a complete output signal IPW. 比例通道1504包括一增益模块1510以将错误信号〜乘以增益因子gl并生成成比例的输 Proportion channel 1504 includes a gain block 1510 to an error signal by a gain factor gl - and generate proportional output

27出信号PPW 。 27 signal PPW. 加算器1512将积分输出信号Ipw和比例输出信号Ppw相加以生成负载功率需求信号K 。 Adder 1512 and the integrator output signal proportional output signal Ppw Ipw phase to generate load power demand signal K.

增益因子gl和g2的值与试验选择相关。 Gain factor gl and g2 values associated with the test selection. 增益因子gl和g2影响PFC和输出电压控制器406的响应性。 Gain factor gl and g2 influence PFC and output voltage controller 406 response. 典型的增益因子gl和g2的值陈述与下文中图8-31的模拟代码,美国专利申请第11/967,269号,题为"使用非线性ai:调制器调节非线性功率转换进程的功率控制系统",申请于2007年12月31日,专利权人:Cirrus Logic公司。 The typical gain factor gl and g2 values statement below in FIG simulation codes 8-31, the United States Patent Application No. 11 / 967,269, entitled "nonlinear ai: Modulator adjust the power control system of nonlinear power conversion process "filed on December 31, 2007, the patentee: Cirrus Logic company. 发明人JohnL. Melanson 。 Inventor JohnL. Melanson. 美国专利申请第11/967,269号描述典型的系统和方法,并以引用方式并入本文。 U.S. Patent Application No. 11 / 967,269 describes a typical systems and methods, and are incorporated by reference herein. PFC和输出电压控制器406更快的响应时间可使开关控制信号CS,更迅速地适应最小化错误信号ev 。 406 faster response time PFC and output voltage controller can switch control signal CS, adapt more quickly to minimize the error signal ev. 如果响应太慢,输出电压Vc可能无法跟踪负载112功率需求的变化,进而无法维持近乎恒定的值。 If the response is too slow, the output voltage Vc may not be able to track the load changes 112 power demand, and thus unable to maintain a nearly constant value. 如果响应太快,输出电压Vc可能对负载112功率需求的微小短暂波动产生反应。 If the response is too fast, the output voltage Vc may load power demand of 112 small transient fluctuations reaction. 这些快速反应可能在PFC和输出电压控制器406 中产生振动,损害或降低各组件的寿命。 These rapid reactions may produce vibrations, damage or reduce the life of each component in the PFC and output voltage controller 406. 比例生成器1500的特定反应比率为设计选择。 Builder proportion ratio 1500 for a particular reaction design choices.

图16和17描述的是RMS值发生器804的典型实例。 Figures 16 and 17 describe the RMS value generator 804 is a typical example. 初级供电电压Vx的RMS值为初级供电电压Vx平方的平均值的平方根。 Primary RMS value of the supply voltage Vx of the square root of the mean square of the primary supply voltage Vx. RMS 值发生器1600接收在一周期的初级供电电压{Vx}中初级供电电压Vx的抽样值,平方模块1602将初级供电电压的每一个抽样值平方以确定{Vx2}。 RMS value generator 1600 receives a cycle of primary supply voltage sample values {Vx} primary supply voltage Vx to the square module 1602 primary sample values for each square of the supply voltage to determine {Vx2}. 低通滤波器1604确定(Vx"平均值VX2_MEAN 。平方根模块1606确定VX2MEAN的平方才艮,以确定初级供电RMS电压Vx—rms。 1604 low-pass filter is determined (Vx "mean VX2_MEAN. Square root module 1606 determines VX2MEAN squared only Burgundy, in order to determine the primary power supply RMS voltage Vx-rms.

RMS值发生器1700接收初级供电电压Vx,峰值探测器1702确定其峰值VX—peak 。 RMS value generator 1700 receives primary power supply voltage Vx, peak detector 1702 determines the peak VX-peak. 因为初级供电电压Vx在至少一个实例中为正弦波, 用乘法器1704将Vx—peak乘以a/2/2 ,以生成初级供电RMS电压VXRMS。 Because the primary supply voltage Vx at least one example of a sine wave, with the Vx-peak multiplier 1704 is multiplied by a / 2/2, in order to generate a primary supply voltage RMS VXRMS. 在至少一个实例中,因为Vx—peak的精确值并非决定性,所以用RMS值发生器1700确定VxPEAK足够适用。 In at least one instance, since the exact value of Vx-peak is not critical, so use RMS value generator 1700 determines VxPEAK enough apply. 图18描述的是PFC和输出电压控制器1800 ,其系代表PFC和输出电压控制器406的一个实例。 Figure 18 depicts the PFC and output voltage controller 1800, an instance of which are representatives of PFC and output voltage controller 406. 在至少一个实例中,多相函数控制信号周期发生策略模块1802作为周期确定变量的单相,双相或三相函数确定开关控制信号CS、的周期TT。 In at least one instance, the multi-phase control signal cycle occurs strategy function module 1802 as a period determined variable single-phase, two-phase or three-phase function to determine the switching control signal CS, the period TT. 因为初级供电RMS电压Vx一RMs增加平均输入电流,从而使供应给定量功率所需要的平均电感电流iL降低。 Because the primary power supply RMS voltage Vx a RMs increase in average input current, so that the average inductor current is supplied to the power needed for the quantitative iL decreases. 例如,对初级供电RMS电压Vx—rmS=120V ,供应30瓦特功率,输入等于250mA ,如P=V'I.对初级供电RMS电压Vx—rmS = 240V,供应30瓦特功率,RMS电感电流、rms等于125 mA.。 For example, the primary power supply RMS voltage Vx-rmS = 120V, 30 watts power supply, input is equal to 250mA, such as P = V'I. For primary power supply RMS voltage Vx-rmS = 240V, supply 30 watts of power, RMS inductor current, rms equal to 125 mA .. 因此,开关控制信号CS,的周期TT可随初级供电RMS电压Vx_rmS值的增加而增加, 进而降低开关控制信号CS,的频率。 Thus, the switch control signal CS, the period TT can be increased with a primary supply voltage Vx_rmS RMS value increases, thereby reducing the frequency of the switch control signal CS, the. 开关控制信号CS,的频率降低可增加功率控制系统400的效率。 Switch control signal CS, the frequency is reduced to increase the efficiency of the power control system 400. 在至少一个实例中,PFC和输出电压控制器1800运行方式与PFC和输出电压控制器800相同,除了策略模块1802确定开关控制信号CS!的周期TT以作为周期确定变量的单相,双相或三相函数。 In at least one instance, PFC and output voltage controller 1800 operating mode with PFC and output voltage controller 800 the same, except the policy module 1802 determines the switch control signal CS! TT cycle as a cycle determines variable single-phase, two-phase or Three-phase function. 图19 , 20和21分别描述的是高效周期确定策略1900, 2000和2100 ,其系代表周期确定变量的三相函数。 19, 20 and 21, respectively, describe the effective period 1900 to determine the strategy, in 2000 and 2100, or on behalf of the three-phase cycle determines function variables. 所述"三相函数"表明所有3 个周期确定变量都用于确定开关控制信号CS,的周期TT 。 The "three-phase function" indicates that all three cycles to determine the cycle TT variables are used to determine the switch control signal CS, the. 根据图19 , 传送至负载112的估计功率大于可传送至负载112的最大功率的一半(〉50%)。 According to Figure 19, transmits power to the load 112 is greater than the estimated maximum power can be delivered to one half of the load 112 (> 50%). 随着初级供电RMS电压Vx—rms增加,周期确定策略l卯O增加周期TT的值以实现初级供电RMS电压Vx—rms的给定值。 With the primary power supply voltage Vx-rms RMS increased cycle determining the added value of the policy cycle l d O TT to achieve a given value of the primary power supply RMS voltage of Vx-rms. 此外,周期TT也与瞬时初级供电电压Vx呈负相关。 In addition, the cycle TT also showed instantaneous primary supply voltage Vx negative. 周期确定策略1900代表高效周期确定策略的一个实例,其可^皮基于VX_rmS的高效控制信号周期发生策略1802利用。 Period 1900 to determine the policy on behalf of an example of efficient policy cycle is determined, which may occur ^ Picchi 1802 strategy on efficient use of the control signal cycle VX_rmS. 图10-13所示的周期-功率传送关联策略也可被基于Vx—RMS的高效控制信号周期发生策略1802利用,其系通过增加初级供电RMS电压Vx一rms的值增加开关控制信号CS!的周期TT 。 Period shown in Figure 10-13 - power transmission-related policies may also be based on the efficient control signal cycle Vx-RMS 1802 use occurs strategy, its system by increasing the value of the primary power supply RMS rms voltage Vx increases a switch control signal CS! Cycle TT. 图20描述的是高效周期确定策略2000 ,其系代表周期确定变量的三相函数。 Figure 20 depicts the efficient cycle determining Strategy 2000, or on behalf of the three-phase cycle determines function variables. 传送至负载112的估计功率范围在可传送至负载112的最大功率的20%至50%。 Estimating power delivered to the load range of 112 to load 112 can be transmitted in the maximum power of 20 to 50%. 随着初级供电RMS电压Vx—增加,周期确定策略2000增加周期TT的值以实现初级供电RMS电压VXRMS的给定值。 With the primary power supply RMS voltage Vx- increase the added value cycle determining Strategy 2000 TT period to achieve the primary power supply RMS voltage VXRMS setpoint. 此外,周期TT也与瞬时初级供电电压Vx呈负相关。 In addition, the cycle TT also showed instantaneous primary supply voltage Vx negative. 周期确定策略2000代表高效周期确定策略的一个实例,其可被基于Vxrms的高效控制信号周期发生策略1802利用。 2000 period to determine the policy on behalf of an instance efficiently determine the policy period, which may be based on the efficient use occur Policy 1802 Vxrms cycle of the control signal. 图10-13所示的周期-功率传送关联策略也可被基于Vx—rms的高效控制信号周期发生策略1802利用,其系通过增加初级供电RMS电压Vx—rms的值增加开关控制信号CS,的周期TT 。 Period shown in Figure 10-13 - power transmission-related policies may also be based on the efficient control signal cycle Vx-rms 1802 use occurs strategy, its system by increasing the value of the primary power supply voltage Vx-rms RMS increased switching control signal CS, the Cycle TT. 图21描述的是高效周期确定策略2100 ,其系代表周期确定变量的瞬时电压水平的三相函数。 Figure 21 depicts the effective period 2100 to determine the policy, or on behalf of cycles to determine the instantaneous voltage level of the variable three-phase function. 传送至负载112的估计功率范围在可传送至负载112的最大功率的0%至20%。 Estimating power delivered to the load range of 112 to load 112 can be transmitted in the maximum power of 0-20%. 随着初级供电RMS电压Vx—RMS 增加,周期确定策略2000增加周期TT的值以实现初级供电RMS电压Vx—rms的给定值。 With the primary power supply voltage Vx-RMS RMS increased period 2000 to determine the added value of the policy cycle TT to achieve a given value of the primary power supply RMS voltage of Vx-rms. 对初级供电RMS电压Vx—rms等于240V ,若随着初级供电RMS电压Vx—rms下降,周期TT和瞬时初级供电电压Vx 的关系在一稳定比率々2.240 ,瞬时初级供电电压Vx等于0V时,周期TT可能为80微秒。 RMS voltage of the primary power supply Vx-rms equal to 240V, with the primary power supply if the RMS voltage Vx-rms down period TT and instantaneous relationship primary supply voltage Vx at a steady rate 々 2.240, instantaneous primary supply voltage Vx is equal to 0V, period TT may be 80 microseconds. 然而,为了保持开关108的频率高于20kHz , 人可闻及频段的上限,周期确定策略2100限制周期TT的最大量在50微秒,如20kHz 。 However, in order to maintain the switch 108 is higher than the frequency 20kHz, and the upper limit of human audible frequency bands, determining the policy period 2100 limits the maximum amount of cycle TT 50 microseconds, e.g. 20kHz. 此外,周期TT也与瞬时初级供电电压Vx呈负相关。 In addition, the cycle TT also showed instantaneous primary supply voltage Vx negative. 周期确定策略2100代表高效周期确定策略的一个实例,其可被基于Vx—RMS的高效控制信号周期发生策略1802利用。 2100 on behalf of the policy cycle is determined and efficient policy cycle determine if an instance, it may be based on the efficient use occur Policy 1802 control signal cycle of Vx-RMS. 图10-13所示的周期-功率传送关联策略也可被基于Vx_rmS的高效控制信号周期发生策略1802利用,其系通过增加初级供电RMS电压Vx一rms.的值增加开关控制信号CS,的周期TT 。 Period shown in Figure 10-13 - power transmission-related policies may also be based on the efficient control signal cycle occurs strategy Vx_rmS 1802 use, its RMS system by increasing the primary supply voltage Vx a rms value increases the switching control signal CS, the cycle. TT. 图19-21 —起描述的是开关控制信号CS,周期的典型函数,其系与传送至负载112的估计功率呈负相关。 Figure 19-21-- play describes the switch control signal CS, typical function cycle, the system and the transfer of power to the load 112 of the estimated negative correlation. 虽然传送至负载112的估计功率的特定实例和开关控制信号CS!的周期TT也被描绘与此,以上两者的特定关系,即开关控制信号CS,的周期TT与传送至负载112的估计功率呈负相关,与设计选择相关。 Although the transfer of power to the load estimated 112 specific instances and switch control signal CS! Cycle TT is also depicted with this, the specific relationship between the two above, that the switch control signal CS, TT and delivered to the period of estimated power load 112 It was negatively correlated with the design choices. 此外,图19-21可被用作如下双相函数: (i)初级供电电压Vx和(ii)初级供电RMS电压Vx—rms,当提供功率因素校正(PFC)时,如果传送至负载112的估计功率保持稳定。 In addition, 19-21 duplex function can be used as follows: (i) the primary supply voltage Vx and (ii) the primary power supply RMS voltage Vx-rms, while providing power factor correction (PFC), if delivered to the load 112 estimating power remains stable. 此外, 图19-21可被用作初级供电RMS电压VXRMS的单相函数并通过使用初级供电RMS电压Vx一rms和开关控制信号CS,周期TT的逆相关关系提供功率因素校正(PFC)。 In addition, Figures 19-21 can be used as the primary supply voltage VXRMS RMS single phase function and by using a primary power rms RMS voltage Vx and the switch control signal CS, an inverse correlation between the cycle TT of providing power factor correction (PFC). 因此,当提供功率因素校正(PFC)时,PFC和输出电压控制器406 实现具有相关开关损耗的开关周期与以下因素的高效关联:(i)传送至开关整流器的瞬时功率,(ii)初级供电电压Vx,和(或)(iii)初级供电RMS电压VX—rms 。 Therefore, when providing power factor correction (PFC) when, PFC and output voltage controller 406 switching cycles associated with efficient following factors relevant switching losses: (i) transferred to the instantaneous power switching regulator, (ii) the primary power supply voltage Vx, and (or) (iii) primary supply RMS voltage VX-rms. 尽管已经对本发明作了详细描述,但应明白,在不偏离所附权利要求中定义的本发明之范围和精神情况下仍可以进行多种变化、替代和更改。 Despite the detailed description of the invention, it should be understood from the scope and spirit of the situation in the appended claims without departing from the invention as defined in the can still be various changes, substitutions and alterations.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
CN102364857A *1 Feb 201129 Feb 2012杭州士兰微电子股份有限公司Primary side constant current switching power controller and method
CN103220840A *16 Apr 201224 Jul 2013飞宏科技股份有限公司Power supply circuit for driving light emitting diode
CN103636106A *10 Feb 201212 Mar 2014保尔王有限公司Input current shaping for transition and discontinuous mode power converter
CN103636106B *10 Feb 201222 Jun 2016派资本有限责任公司用于过渡和不连续模式功率转换器的输入电流整形方法
CN104143901A *6 May 201312 Nov 2014立锜科技股份有限公司Control circuit of power converter and relevant control method
CN104143901B *6 May 201315 Mar 2017立锜科技股份有限公司电源转换器的控制电路及相关的控制方法
Classifications
International ClassificationH02M1/42
Cooperative ClassificationH02M1/4225, Y02B70/126, H03M3/476, Y02P80/112
European ClassificationH03M3/476, H02M1/42B5
Legal Events
DateCodeEventDescription
17 Mar 2010C06Publication
23 Jun 2010C10Entry into substantive examination
5 Jun 2013C02Deemed withdrawal of patent application after publication (patent law 2001)