GB2503855A - Electronic driver for a light source - Google Patents
Electronic driver for a light source Download PDFInfo
- 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
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.
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)
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)
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)
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 |
-
2011
- 2011-04-28 GB GBGB1107162.8A patent/GB201107162D0/en not_active Ceased
- 2011-05-13 GB GBGB1108022.3A patent/GB201108022D0/en not_active Ceased
-
2012
- 2012-04-27 GB GB1318932.9A patent/GB2503855B/en active Active
- 2012-04-27 WO PCT/EP2012/057722 patent/WO2012146695A2/en active Application Filing
Patent Citations (5)
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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