WO2012146695A3 - Electronic driver for a light source - Google Patents

Electronic driver for a light source Download PDF

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Publication number
WO2012146695A3
WO2012146695A3 PCT/EP2012/057722 EP2012057722W WO2012146695A3 WO 2012146695 A3 WO2012146695 A3 WO 2012146695A3 EP 2012057722 W EP2012057722 W EP 2012057722W WO 2012146695 A3 WO2012146695 A3 WO 2012146695A3
Authority
WO
WIPO (PCT)
Prior art keywords
switch
target
inductor
controller
bus
Prior art date
Application number
PCT/EP2012/057722
Other languages
French (fr)
Other versions
WO2012146695A2 (en
Inventor
Jamie Kelly
Deepak MAKWANA
Kevin Mcdermott
Paul Dalby
Wayne Bell
Original Assignee
Tridonic Gmbh & Co Kg
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
Application filed by Tridonic Gmbh & Co Kg filed Critical Tridonic Gmbh & Co Kg
Priority to GB1318932.9A priority Critical patent/GB2503855B/en
Publication of WO2012146695A2 publication Critical patent/WO2012146695A2/en
Publication of WO2012146695A3 publication Critical patent/WO2012146695A3/en

Links

Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02MAPPARATUS 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
    • H02M3/00Conversion of dc power input into dc power output
    • H02M3/02Conversion of dc power input into dc power output without intermediate conversion into ac
    • H02M3/04Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
    • H02M3/10Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M3/145Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M3/155Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
    • H02M3/156Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/30Driver circuits
    • H05B45/37Converter circuits
    • H05B45/3725Switched mode power supply [SMPS]
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02MAPPARATUS 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
    • H02M1/00Details of apparatus for conversion
    • H02M1/0003Details of control, feedback or regulation circuits
    • H02M1/0016Control circuits providing compensation of output voltage deviations using feedforward of disturbance parameters
    • H02M1/0022Control circuits providing compensation of output voltage deviations using feedforward of disturbance parameters the disturbance parameters being input voltage fluctuations
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/30Driver circuits
    • H05B45/355Power factor correction [PFC]; Reactive power compensation
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/30Driver circuits
    • H05B45/37Converter circuits
    • H05B45/3725Switched mode power supply [SMPS]
    • H05B45/38Switched mode power supply [SMPS] using boost topology
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/30Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]

Abstract

An electronic driver for a lightsource comprising a power factor correction working in critical conduction mode. The circuit includes an inductor L1, a diode D1, a switch Q3 and a controller 24. An input voltage Vin is applied to the inductor L1 which is cyclically discharged through the diode D1 by the operation of the switch Q3. The switch Q3 is controlled by the controller 24 which varies the on period of the switch Q3 during which the inductor is charged, for adjusting the output voltage Vbus towards a target value Vbus target- The controller 24 receives, and is responsive to, an indication of the inductor L1 reaching a discharged state when the switch is in an off state. The controller 24 adjusts the target voltage value Vbus target in dependence upon an indication of the ratio of the off period of the switch to the on period of the switch. The target voltage Vbus target is increased in response to an increase in the input voltage Vin that might otherwise cause instability, so that the input voltage at which instability occurred is increased.
PCT/EP2012/057722 2011-04-28 2012-04-27 Electronic driver for a lightsource WO2012146695A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1318932.9A GB2503855B (en) 2011-04-28 2012-04-27 Electronic driver for a light source

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GBGB1107162.8A GB201107162D0 (en) 2011-04-28 2011-04-28 Power factor correction
GB1107162.8 2011-04-28
GBGB1108022.3A GB201108022D0 (en) 2011-04-28 2011-05-13 Power factor correction
GB1108022.3 2011-05-13

Publications (2)

Publication Number Publication Date
WO2012146695A2 WO2012146695A2 (en) 2012-11-01
WO2012146695A3 true WO2012146695A3 (en) 2012-12-20

Family

ID=44202927

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2012/057722 WO2012146695A2 (en) 2011-04-28 2012-04-27 Electronic driver for a lightsource

Country Status (2)

Country Link
GB (3) GB201107162D0 (en)
WO (1) WO2012146695A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10757767B2 (en) 2018-10-09 2020-08-25 Lumileds Llc DC-DC converter circuit configuration
TWI737242B (en) * 2019-03-29 2021-08-21 美商亮銳公司 Light emitting device, light emitting system and method of operating a light emitting diode driver

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0582813A2 (en) * 1992-08-10 1994-02-16 International Business Machines Corporation Critically continuous boost converter
US6469917B1 (en) * 2001-08-16 2002-10-22 Green Power Technologies Ltd. PFC apparatus for a converter operating in the borderline conduction mode
US20040012347A1 (en) * 2002-07-22 2004-01-22 International Rectifier Corporation Single chip ballast control with power factor correction
WO2004084585A2 (en) * 2003-03-18 2004-09-30 International Rectifier Corporation High intensity discharge lamp ballast circuit
US20080018261A1 (en) * 2006-05-01 2008-01-24 Kastner Mark A LED power supply with options for dimming

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004025597B4 (en) 2004-05-25 2014-08-21 Tridonic Gmbh & Co Kg Power Factor Correction Method and Circuit (PFC)
KR101670994B1 (en) * 2009-04-27 2016-11-01 페어차일드코리아반도체 주식회사 Power factor correction circuit and driving method thereof
DE102009034350A1 (en) 2009-07-23 2011-02-03 Tridonicatco Gmbh & Co. Kg Method and circuit for power factor correction

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0582813A2 (en) * 1992-08-10 1994-02-16 International Business Machines Corporation Critically continuous boost converter
US6469917B1 (en) * 2001-08-16 2002-10-22 Green Power Technologies Ltd. PFC apparatus for a converter operating in the borderline conduction mode
US20040012347A1 (en) * 2002-07-22 2004-01-22 International Rectifier Corporation Single chip ballast control with power factor correction
WO2004084585A2 (en) * 2003-03-18 2004-09-30 International Rectifier Corporation High intensity discharge lamp ballast circuit
US20080018261A1 (en) * 2006-05-01 2008-01-24 Kastner Mark A LED power supply with options for dimming

Also Published As

Publication number Publication date
GB201108022D0 (en) 2011-06-29
GB201107162D0 (en) 2011-06-15
WO2012146695A2 (en) 2012-11-01
GB201318932D0 (en) 2013-12-11
GB2503855B (en) 2016-06-08
GB2503855A (en) 2014-01-08

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