WO2011030246A3 - Driving circuit having resonant converter and shunting switches, for driving a plurality of light sources - Google Patents
Driving circuit having resonant converter and shunting switches, for driving a plurality of light sources Download PDFInfo
- Publication number
- WO2011030246A3 WO2011030246A3 PCT/IB2010/053683 IB2010053683W WO2011030246A3 WO 2011030246 A3 WO2011030246 A3 WO 2011030246A3 IB 2010053683 W IB2010053683 W IB 2010053683W WO 2011030246 A3 WO2011030246 A3 WO 2011030246A3
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- light sources
- driving
- driving circuit
- resonant converter
- series
- Prior art date
Links
Classifications
-
- 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]
- H05B45/40—Details of LED load circuits
- H05B45/44—Details of LED load circuits with an active control inside an LED matrix
- H05B45/48—Details of LED load circuits with an active control inside an LED matrix having LEDs organised in strings and incorporating parallel shunting devices
-
- 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
- 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]
- H05B45/382—Switched mode power supply [SMPS] with galvanic isolation between input and output
-
- 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
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The invention relates to a driving circuit (1) for driving a plurality of light sources (3,4) arranged in a series configuration, the circuit (1) comprising: at least two controllable switches (6,7,8), each switch configured to shunt one or more corresponding light sources (3,4,5); - a controller (9) for individually controlling operative states of the switches (6,7,8) in order to control a light output of the corresponding light sources (3,4,5); a secondary source (11) having input terminals (13,14) for connecting to a primary source and output terminals (18,19) for connecting to the series arrangement of light sources (3,4,5), wherein the secondary source (11) has the characteristics of a voltage source; - an electrical element (21,22,7,33,40) to provide an impedance between the secondary source (11) and the series arrangement of light sources (3,4,5) in series with the series arrangement of light sources (3,4,5).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP09169832.4 | 2009-09-09 | ||
EP09169832 | 2009-09-09 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2011030246A2 WO2011030246A2 (en) | 2011-03-17 |
WO2011030246A3 true WO2011030246A3 (en) | 2011-05-19 |
Family
ID=43568190
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/IB2010/053683 WO2011030246A2 (en) | 2009-09-09 | 2010-08-16 | Driving circuit for driving a plurality of light sources |
Country Status (1)
Country | Link |
---|---|
WO (1) | WO2011030246A2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105432149A (en) * | 2013-05-23 | 2016-03-23 | J&C技术有限公司 | Apparatus for driving light emitting diode |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008110978A1 (en) * | 2007-03-13 | 2008-09-18 | Philips Intellectual Property & Standards Gmbh | Supply circuit |
-
2010
- 2010-08-16 WO PCT/IB2010/053683 patent/WO2011030246A2/en active Application Filing
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008110978A1 (en) * | 2007-03-13 | 2008-09-18 | Philips Intellectual Property & Standards Gmbh | Supply circuit |
Non-Patent Citations (1)
Title |
---|
ROBERT W. ERICKSON, DRAGAN MAKSIMOVIC: "Fundamentals of power electronics", 31 December 2001, KLUWER ACADEMIC PUBLISHERS, United States of America, ISBN: 0-7923-7270-0, pages: 705 - 755, XP002625293 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105432149A (en) * | 2013-05-23 | 2016-03-23 | J&C技术有限公司 | Apparatus for driving light emitting diode |
CN105432149B (en) * | 2013-05-23 | 2018-03-20 | J&C技术有限公司 | Light emitting diode drive device |
Also Published As
Publication number | Publication date |
---|---|
WO2011030246A2 (en) | 2011-03-17 |
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