GB2503855A - Electronic driver for a light source - Google Patents

Electronic driver for a light source Download PDF

Info

Publication number
GB2503855A
GB2503855A GB1318932.9A GB201318932A GB2503855A GB 2503855 A GB2503855 A GB 2503855A GB 201318932 A GB201318932 A GB 201318932A GB 2503855 A GB2503855 A GB 2503855A
Authority
GB
United Kingdom
Prior art keywords
switch
target
inductor
controller
vbus
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
GB1318932.9A
Other versions
GB2503855B (en
GB201318932D0 (en
Inventor
Jamie Kelly
Deepak Makwana
Kevin Mcdermott
Paul Dalby
Wayne Bell
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tridonic GmbH and Co KG
Original Assignee
Tridonic GmbH and 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 and Co KG filed Critical Tridonic GmbH and Co KG
Publication of GB201318932D0 publication Critical patent/GB201318932D0/en
Publication of GB2503855A publication Critical patent/GB2503855A/en
Application granted granted Critical
Publication of GB2503855B publication Critical patent/GB2503855B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • H02M3/00—Conversion of dc power input into dc power output
    • H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
    • H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
    • H02M3/10—Conversion 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
    • H02M3/145—Conversion 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
    • H02M3/155—Conversion 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
    • H02M3/156—Conversion 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
    • 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
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/30—Driver circuits
    • H05B45/37—Converter circuits
    • H05B45/3725—Switched mode power supply [SMPS]
    • 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
    • H02M1/0003—Details of control, feedback or regulation circuits
    • H02M1/0016—Control circuits providing compensation of output voltage deviations using feedforward of disturbance parameters
    • H02M1/0022—Control circuits providing compensation of output voltage deviations using feedforward of disturbance parameters the disturbance parameters being input voltage fluctuations
    • 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
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/30—Driver circuits
    • H05B45/355—Power factor correction [PFC]; Reactive power compensation
    • 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
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/30—Driver circuits
    • H05B45/37—Converter circuits
    • H05B45/3725—Switched mode power supply [SMPS]
    • H05B45/38—Switched mode power supply [SMPS] using boost topology
    • 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]

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Dc-Dc Converters (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)

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.
GB1318932.9A 2011-04-28 2012-04-27 Electronic driver for a light source Active GB2503855B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GBGB1107162.8A GB201107162D0 (en) 2011-04-28 2011-04-28 Power factor correction
GBGB1108022.3A GB201108022D0 (en) 2011-04-28 2011-05-13 Power factor correction
PCT/EP2012/057722 WO2012146695A2 (en) 2011-04-28 2012-04-27 Electronic driver for a lightsource

Publications (3)

Publication Number Publication Date
GB201318932D0 GB201318932D0 (en) 2013-12-11
GB2503855A true GB2503855A (en) 2014-01-08
GB2503855B GB2503855B (en) 2016-06-08

Family

ID=44202927

Family Applications (3)

Application Number Title Priority Date Filing Date
GBGB1107162.8A Ceased GB201107162D0 (en) 2011-04-28 2011-04-28 Power factor correction
GBGB1108022.3A Ceased GB201108022D0 (en) 2011-04-28 2011-05-13 Power factor correction
GB1318932.9A Active GB2503855B (en) 2011-04-28 2012-04-27 Electronic driver for a light source

Family Applications Before (2)

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

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
WO2012146695A2 (en) 2012-11-01
GB2503855B (en) 2016-06-08
GB201108022D0 (en) 2011-06-29
GB201318932D0 (en) 2013-12-11
GB201107162D0 (en) 2011-06-15
WO2012146695A3 (en) 2012-12-20

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