CN100562201C - Control device for digital field driven luminescent thin film light power supply - Google Patents
Control device for digital field driven luminescent thin film light power supply Download PDFInfo
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- CN100562201C CN100562201C CNB2007101352845A CN200710135284A CN100562201C CN 100562201 C CN100562201 C CN 100562201C CN B2007101352845 A CNB2007101352845 A CN B2007101352845A CN 200710135284 A CN200710135284 A CN 200710135284A CN 100562201 C CN100562201 C CN 100562201C
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- control device
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- power supply
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
Abstract
Boy's formula electroluminescent photoelectric source control device.The present invention selects the master chip of single-chip microcomputer as the photoelectric source control device for use, uses sine wave signal generator able to programme, programmable amplifier and power amplifier to form simultaneously and can make electroluminescent thin film luminosity and the variable controllable light power supply of colourity.Control device of the present invention comprises power circuit, numeral input display circuit, master controller, digital program controlled sinusoidal wave generation unit, digital program controlled amplifying circuit, six parts of power amplifier booster circuit.The digital electroluminescent photoelectric source control device that adopts the present invention to make, the control information according to importing from keyboard can produce the sine-wave power of correspondent frequency and amplitude, thereby make light-emitting film send the coloured light of corresponding colourity and brightness.Control device for digital field driven luminescent thin film light power supply response speed in service is fast, reliable and stable.
Description
Technical field
The invention belongs to a kind of control device of electroluminescent photoelectric source control device, particularly a kind of digital field driven luminescent thin film light power supply.
Background technology
The luminous power of electroluminescent thin film generally is made of sine-wave oscillator, power amplifier and booster circuit, produces the sine-wave power signal of certain frequency and amplitude, and it is luminous directly to start electroluminescent thin film after booster circuit boosts.What at present both at home and abroad the photoelectric source of electroluminescent thin film was selected for use is analog circuit, generation be the less sine wave source of a kind of frequency range, cause thus electroluminescent thin film luminous colourity excursion less; Because the amplitude of the luminous power by analog regulation is a continually varying, thereby causes the luminous intensity variations of light-emitting film inhomogeneous, change greatly when brightness is weak, variation was little when brightness was strong.
Summary of the invention
The purpose of this invention is to provide a kind of control device for digital field driven luminescent thin film light power supply, make the luminous colourity excursion of light-emitting film big, luminosity changes evenly.
For realizing this purpose, the present invention selects the control master chip of single-chip microcomputer as photoelectric source, change by the geometric ratio rule simultaneously, used the digital program control sinusoidal signal generator of a slice ML2036 and a slice AD5260 digital spc potentiometer for the frequency range that strengthens photoelectric source and the amplitude that can make photoelectric source.
According to technical scheme provided by the invention, numeral input display circuit, master controller, controlled sinusoidal signal generator, digital program controlled amplifying circuit and power amplifier booster circuit connect successively; Numeral input display circuit is used to set the frequency and the range value of output photoelectric source, the frequency of input and range value are transformed into corresponding control information through the processing of master controller and after analyzing, by control operation to controlled sinusoidal signal generator and digital program controlled amplifying circuit, the final generation and corresponding frequency of set point and amplitude sinusoidal signal, and after the power amplifier booster circuit amplifies and boosts, offer electroluminescent thin film, thereby send the coloured light of required colourity and brightness.
The multiplication factor of digital program controlled amplifying circuit is subjected to the control of master controller, and master controller carries out digital control by the SPI serial line interface to digital programmable amplifying circuit.
Also comprise power circuit, in described power circuit,～220V power supply becomes the alternating voltage of two groups～9V, one group～22V respectively after the transformer step-down, again respectively after the rectifying and wave-filtering voltage stabilizing, to control device for digital field driven luminescent thin film light power supply provide+5VDC ,-5VDC and+direct voltage of 24VDC.
Described numeral input display circuit is provided with 4 input function keys, is used for setpoint frequency and range value, shows the frequency and the range value of output photoelectric source with four 7 sections LED nixie displaies, and passes through I
2C interface and master controller carry out information communication.
The master chip of master controller receives the frequency and the range value of input, treated and be transformed into control routine, by the SPI interface, enforcement is to the control of the digital regulation resistance in controlled sinusoidal signal generator and the digital program controlled amplifying circuit, the corresponding sine wave signal of generated frequency and range value and input value, this sine wave signal obtains required photoelectric source signal and offers electroluminescent thin film luminous after the power amplifier booster circuit amplifies and boosts.
The master chip of described master controller is the STC12C5410AD that Shenzhen macrocrystalline scientific ﹠ technical corporation produces, the clock frequency of this chip can reach 40MHz, have 4 road PAWM output, 8 tunnel conversion accuracies are 10 A/D, and the FlashROM of 10KB byte and the E2ROM of 2KB byte are arranged.
Described digital program control sine wave signal generator is the ML2036 that fairchild company produces, it is a kind of low-cost DDS (directly frequency synthesis of numeral) device, the frequency of ML2036 output able to programme is the sine wave signal of DC～50KHz, the compatible serial microcontroller interface of 3 line SPI, 12MHz clock when input frequency output resolution ratio be 1.5Hz (± 0.75Hz), have the 1/2 or 1/8 clock output of clock frequency, can realize seamless interfacing with STC12C5410AD.
Described digital programmable amplifier is the AD5260 of AD company production and the OP07 of LM company production, AD5260 is a kind of digital spc formula potentiometer, have 256 kinds of resistance output taps, the compatible serial microcontroller interface of 3 line SPI, control by microprocessor, make the multiplication factor of the programmable amplifier that is made of AD5260 and OP07 change by the geometric ratio rule, the result makes the luminous intensity even variation of electroluminescent thin film.
Advantage of the present invention is: the field driven luminescent thin film light power supply controller that adopts the present invention's preparation, the photoelectric source that is generated can control electroluminescent thin film luminous colourity in a big way, change, luminous intensity variations is even, and the control device for digital field driven luminescent thin film light power supply working stability is reliable.
Description of drawings
Fig. 1 is an electroluminescent photoelectric source control device block diagram of the present invention.
Fig. 2 is the power circuit principle figure of electroluminescent photoelectric source of the present invention.
Fig. 3 is electroluminescent photoelectric source numeral of the present invention input and display unit electrical schematic diagram.
Fig. 4 is electroluminescent photoelectric source core cell circuit theory diagrams of the present invention.
Fig. 5 is the controlled sinusoidal signal generator electrical schematic diagram of electroluminescent photoelectric source of the present invention.
Fig. 6 is the digital program controlled amplifying circuit electrical schematic diagram of electroluminescent photoelectric source of the present invention.
Embodiment
As shown in Figure 1, numeral input display circuit, master controller, controlled sinusoidal signal generator, digital program controlled amplifying circuit and power amplifier booster circuit connect successively; The present invention forms master controller with singlechip chip STC12C5410AD as the master chip of photoelectric source control device, import display circuit with the ZLG7290 chip as numeral, controlled sinusoidal signal generator, digital program controlled amplifying circuit, power amplifier booster circuit are formed electroluminescent photoelectric source control device together.Power circuit provides power supply for the photoelectric source control device, chip is LM78L05, LM79L05 and LM7818, numeral input display circuit is used to set the frequency and the range value of output photoelectric source, the frequency of input and range value are transformed into corresponding control information through the processing of master controller and after analyzing, by control operation to controlled sinusoidal signal generator and digital program controlled amplifying circuit, the final generation and corresponding frequency of set point and amplitude sinusoidal signal, and behind the power amplifier booster circuit, offer electroluminescent thin film, thereby send the coloured light of required colourity and brightness.
Described power circuit such as Fig. 2.～220V power supply becomes two groups～9V, one group～22V alternating voltage respectively after the transformer step-down, respectively after the rectifying and wave-filtering voltage stabilizing, to control device for digital field driven luminescent thin film light power supply provide+5VDC ,-5VDC and+direct voltage of 24VDC.
Described numeral input display circuit such as Fig. 3.Mainly constitute, be provided with four input function keys, be used for setpoint frequency and range value, show the frequency and the range value of output photoelectric source with four 7 sections LED nixie displaies by the ZLG7290 chip.ZLG7290 passes through I
2C interface and master controller carry out information communication.
Described master controller, controlled sinusoidal signal generator and digital program controlled amplifying circuit such as Fig. 4, Fig. 5 and Fig. 6.The master chip STC12C5410AD of master controller receives the frequency and the range value of input, treated and be transformed into certain control routine, by the SPI interface, enforcement is to the control of the digital regulation resistance AD5260 chip in controlled sinusoidal signal generator ML2016 and the digital programmable amplifying circuit, the corresponding sine wave signal of generated frequency and range value and input value, this sine wave signal obtains required photoelectric source signal and offers electroluminescent thin film luminous after the power amplifier booster circuit amplifies and boosts.
SCM Based electroluminescent photoelectric source control device circuit is simple, easy to use, stable and reliable operation, and electroluminescent thin film luminescent chromaticity adjustable range is big, and luminosity is evenly adjustable.
Described I
2C (Inter-Integrated Circuit) bus is a kind of twin wire universal serial bus by the exploitation of PHILIPS company, is used to connect microcontroller and ancillary equipment thereof.
The full name of described SPI interface is " Serial Peripheral Interface ", means serial peripheral interface.
Described LED is that the English of light-emitting diode is called for short.
Claims (6)
1, control device for digital field driven luminescent thin film light power supply is characterized in that: numeral input display circuit, master controller, controlled sinusoidal signal generator, digital program controlled amplifying circuit and power amplifier booster circuit connect successively; Numeral input display circuit is used to set the frequency and the range value of output photoelectric source, the frequency of input and range value are transformed into corresponding control information through the processing of master controller and after analyzing, by control operation to controlled sinusoidal signal generator and digital program controlled amplifying circuit, the final generation and corresponding frequency of set point and amplitude sinusoidal signal, and after the power amplifier booster circuit amplifies and boosts, offer electroluminescent thin film, thereby send the coloured light of required colourity and brightness.
2, control device for digital field driven luminescent thin film light power supply according to claim 1, it is characterized in that: the multiplication factor of digital program controlled amplifying circuit is subjected to the control of master controller, and master controller carries out digital control by serial peripheral interface (SPI) serial line interface to digital programmable amplifying circuit.
3, control device for digital field driven luminescent thin film light power supply according to claim 1, it is characterized in that: also comprise power circuit, in described power circuit,～220V power supply becomes the alternating voltage of two groups～9V, one group～22V respectively after the transformer step-down, again respectively after the rectifying and wave-filtering voltage stabilizing, to control device for digital field driven luminescent thin film light power supply provide+5V ,-5V and+direct voltage of 24V.
4, control device for digital field driven luminescent thin film light power supply according to claim 1, it is characterized in that: described numeral input display circuit is provided with four input function keys, be used for setpoint frequency and range value, show the frequency and the range value of output photoelectric source with four 7 sections light-emitting diodes (LED) nixie display, and pass through twin wire universal serial bus (I
2C) interface and master controller carry out information communication.
5, control device for digital field driven luminescent thin film light power supply according to claim 1, it is characterized in that: the master chip of master controller receives the frequency and the range value of input, treated and be transformed into control routine, by the SPI interface, enforcement is to the control of the digital regulation resistance in controlled sinusoidal signal generator and the digital program controlled amplifying circuit, the corresponding sine wave signal of generated frequency and range value and input value, this sine wave signal obtains required photoelectric source signal and offers electroluminescent thin film luminous after the power amplifier booster circuit amplifies and boosts.
6, control device for digital field driven luminescent thin film light power supply according to claim 1 is characterized in that: the chip of described master controller is STC12C5410AD, and the chip of described digital program controlled amplifying circuit is AD5260.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007101352845A CN100562201C (en) | 2007-11-05 | 2007-11-05 | Control device for digital field driven luminescent thin film light power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007101352845A CN100562201C (en) | 2007-11-05 | 2007-11-05 | Control device for digital field driven luminescent thin film light power supply |
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| Publication Number | Publication Date |
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| CN101170851A CN101170851A (en) | 2008-04-30 |
| CN100562201C true CN100562201C (en) | 2009-11-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2007101352845A Expired - Fee Related CN100562201C (en) | 2007-11-05 | 2007-11-05 | Control device for digital field driven luminescent thin film light power supply |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102789753A (en) * | 2011-05-16 | 2012-11-21 | 福建富顺电子有限公司 | Light-emitting diode (LED) sport competition countdown displayer capable of dimming |
| CN103853151B (en) * | 2014-03-14 | 2016-11-02 | 陕西科技大学 | DEH spot check instrument sine wave generating means |
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Application publication date: 20080430 Assignee: Jiangsu Eastone Technology Co., Ltd. Assignor: Jiangnan University Contract record no.: 2010320000252 Denomination of invention: Control device for digital field driven luminescent thin film light power supply Granted publication date: 20091118 License type: Exclusive License Record date: 20100318 |
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Granted publication date: 20091118 Termination date: 20151105 |
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