WO2000015013A3 - Ballast circuit with lamp current regulating circuit - Google Patents

Ballast circuit with lamp current regulating circuit Download PDF

Info

Publication number
WO2000015013A3
WO2000015013A3 PCT/US1999/020293 US9920293W WO0015013A3 WO 2000015013 A3 WO2000015013 A3 WO 2000015013A3 US 9920293 W US9920293 W US 9920293W WO 0015013 A3 WO0015013 A3 WO 0015013A3
Authority
WO
WIPO (PCT)
Prior art keywords
circuit
switching element
duty cycle
coupled
inverter
Prior art date
Application number
PCT/US1999/020293
Other languages
French (fr)
Other versions
WO2000015013A2 (en
Inventor
Mihail S Moisin
Original Assignee
Electro Mag Int Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US09/146,859 external-priority patent/US6107750A/en
Application filed by Electro Mag Int Inc filed Critical Electro Mag Int Inc
Priority to EP99945491A priority Critical patent/EP1118253A2/en
Priority to CA002342905A priority patent/CA2342905A1/en
Priority to AU58081/99A priority patent/AU5808199A/en
Publication of WO2000015013A2 publication Critical patent/WO2000015013A2/en
Publication of WO2000015013A3 publication Critical patent/WO2000015013A3/en

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/42—Circuits or arrangements for compensating for or adjusting power factor in converters or inverters
    • H02M1/4208—Arrangements for improving power factor of AC input
    • H02M1/4258—Arrangements for improving power factor of AC input using a single converter stage both for correction of AC input power factor and generation of a regulated and galvanically isolated DC output voltage
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14—Circuit arrangements
    • H05B41/26—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc
    • H05B41/28—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14—Circuit arrangements
    • H05B41/26—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc
    • H05B41/28—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters
    • H05B41/282—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters with semiconductor devices
    • H05B41/2821—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters with semiconductor devices by means of a single-switch converter or a parallel push-pull converter in the final stage
    • H05B41/2822—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters with semiconductor devices by means of a single-switch converter or a parallel push-pull converter in the final stage using specially adapted components in the load circuit, e.g. feed-back transformers, piezoelectric transformers; using specially adapted load circuit configurations
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14—Circuit arrangements
    • H05B41/26—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc
    • H05B41/28—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters
    • H05B41/282—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters with semiconductor devices
    • H05B41/2821—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters with semiconductor devices by means of a single-switch converter or a parallel push-pull converter in the final stage
    • H05B41/2824—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters with semiconductor devices by means of a single-switch converter or a parallel push-pull converter in the final stage using control circuits for the switching element
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14—Circuit arrangements
    • H05B41/36—Controlling
    • H05B41/38—Controlling the intensity of light
    • H05B41/39—Controlling the intensity of light continuously
    • H05B41/392—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor
    • H05B41/3921—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor with possibility of light intensity variations
    • 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
    • Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes

Abstract

A circuit having a full bridge configuration with a single actively biased switching element. In one embodiment, the circuit is a ballast circuit having a full bridge inverter with one switching element. The bridge includes a diode coupled to the switching element such that the diode and the switching element are coupled between positive and negative rails of the inverter. The bridge further includes first and second capacitors coupled end to end across the positive and negative rails. The ballast circuit can be coupled to a rectifier/boost circuit having a boost inductor coupled to the inverter circuit. In an exemplary embodiment, a ballast circuit includes an inverter circuit having a switching element with a conduction state controlled by a control circuit which limits a voltage applied to the lamp. The control circuit provides a conduction control signal to a duty cycle control circuit. The conduction control signal alternately biases the switching element to conductive and non-conductive states at a first duty cycle when the lamp voltage is below a predetermined level. When the lamp voltage becomes greater than the predetermined level, the duty cycle control circuit decreases the switching element to a second duty cycle, which is less than the first duty cycle, to reduce the voltage at the lamp.
PCT/US1999/020293 1998-09-03 1999-09-03 Ballast circuit with lamp current regulating circuit WO2000015013A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP99945491A EP1118253A2 (en) 1998-09-03 1999-09-03 Ballast circuit with lamp current regulating circuit
CA002342905A CA2342905A1 (en) 1998-09-03 1999-09-03 Ballast circuit with lamp current regulating circuit
AU58081/99A AU5808199A (en) 1998-09-03 1999-09-03 Ballast circuit with lamp current regulating circuit

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US09/146,859 1998-09-03
US09/146,859 US6107750A (en) 1998-09-03 1998-09-03 Converter/inverter circuit having a single switching element
US09/173,951 1998-10-16
US09/173,951 US6160358A (en) 1998-09-03 1998-10-16 Ballast circuit with lamp current regulating circuit

Publications (2)

Publication Number Publication Date
WO2000015013A2 WO2000015013A2 (en) 2000-03-16
WO2000015013A3 true WO2000015013A3 (en) 2000-06-02

Family

ID=26844364

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1999/020293 WO2000015013A2 (en) 1998-09-03 1999-09-03 Ballast circuit with lamp current regulating circuit

Country Status (5)

Country Link
US (1) US6160358A (en)
EP (1) EP1118253A2 (en)
AU (1) AU5808199A (en)
CA (1) CA2342905A1 (en)
WO (1) WO2000015013A2 (en)

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US6794829B2 (en) * 2001-09-19 2004-09-21 General Electric Company Method and apparatus for a protective ballast circuit
US6936977B2 (en) * 2002-01-23 2005-08-30 Mihail S. Moisin Ballast circuit having enhanced output isolation transformer circuit with high power factor
US6674246B2 (en) 2002-01-23 2004-01-06 Mihail S. Moisin Ballast circuit having enhanced output isolation transformer circuit
US6686705B2 (en) * 2002-01-25 2004-02-03 General Electric Company Ballast circuit with multiple inverters and dimming controller
US7109665B2 (en) * 2002-06-05 2006-09-19 International Rectifier Corporation Three-way dimming CFL ballast
US6725132B2 (en) 2002-06-20 2004-04-20 Minebea Co., Ltd. Intelligent cooling fan
US6801004B2 (en) * 2002-06-20 2004-10-05 Minebea Co., Ltd. System and method of controlling cooling fan speeds
US20030234625A1 (en) * 2002-06-20 2003-12-25 Minebea Co., Ltd. Cooling fan capable of providing cooling fan data
US6931306B2 (en) * 2002-06-20 2005-08-16 Minebea Co., Ltd. System and method of designing cooling fans
DE10231989B3 (en) * 2002-07-15 2004-04-08 Wurdack, Stefan, Dr. Device for determining surface resistance of a probe, especially a semiconductor wafer, measures conductance with eddy currents and exact position of the wafer
US7061187B2 (en) * 2003-03-19 2006-06-13 Moisin Mihail S Circuit having clamped global feedback for linear load current
US6954036B2 (en) * 2003-03-19 2005-10-11 Moisin Mihail S Circuit having global feedback for promoting linear operation
US7099132B2 (en) * 2003-03-19 2006-08-29 Moisin Mihail S Circuit having power management
US7642728B2 (en) * 2003-03-19 2010-01-05 Moisin Mihail S Circuit having EMI and current leakage to ground control circuit
US20060238146A1 (en) * 2005-04-25 2006-10-26 Moisin Mihail S Methods and apparatus to enhance operation of fluorescent lamps
EP2244383A1 (en) * 2009-04-23 2010-10-27 Mitsubishi Electric R&D Centre Europe B.V. Method and apparatus for controlling the operation of a snubber circuit
US8384310B2 (en) * 2010-10-08 2013-02-26 General Electric Company End-of-life circuit for fluorescent lamp ballasts
EP3729912A1 (en) * 2017-12-20 2020-10-28 Lumileds LLC Illumination system including tunable light engine

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Title
BLANCO C ET AL: "A SINGLE STAGE FLUORESCENT LAMP BALLAST WITH HIGH POWER FACTOR", ANNUAL APPLIED POWER ELECTRONICS CONFERENCE AND EXPOSITION (APEC),US,NEW YORK, IEEE, vol. CONF. 11, 1996, pages 616 - 621, XP000585905, ISBN: 0-7803-3045-5 *

Also Published As

Publication number Publication date
EP1118253A2 (en) 2001-07-25
AU5808199A (en) 2000-03-27
WO2000015013A2 (en) 2000-03-16
US6160358A (en) 2000-12-12
CA2342905A1 (en) 2000-03-16

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