SG11201701295SA - Single-stage multi-string led driver with dimming - Google Patents

Single-stage multi-string led driver with dimming

Info

Publication number
SG11201701295SA
SG11201701295SA SG11201701295SA SG11201701295SA SG11201701295SA SG 11201701295S A SG11201701295S A SG 11201701295SA SG 11201701295S A SG11201701295S A SG 11201701295SA SG 11201701295S A SG11201701295S A SG 11201701295SA SG 11201701295S A SG11201701295S A SG 11201701295SA
Authority
SG
Singapore
Prior art keywords
dimming
led driver
stage multi
string led
string
Prior art date
Application number
SG11201701295SA
Inventor
Ramprakash Kathiresan
Pritam Das
Thomas Guenter Reindl
Parthiban Thiyagarajan
Original Assignee
Univ Singapore
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 Univ Singapore filed Critical Univ Singapore
Publication of SG11201701295SA publication Critical patent/SG11201701295SA/en

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
    • H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/10—Controlling the light source
    • 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
    • H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
    • H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
    • H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
    • H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
    • H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
    • H02M3/33561—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only having more than one ouput with independent control
    • 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]
    • H05B45/10—Controlling the intensity of the light
    • H05B45/14—Controlling the intensity of the light using electrical feedback from LEDs or from LED modules
    • 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
    • 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
    • H05B45/46—Details of LED load circuits with an active control inside an LED matrix having LEDs disposed in parallel lines

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)
  • Dc-Dc Converters (AREA)
SG11201701295SA 2014-08-18 2015-08-18 Single-stage multi-string led driver with dimming SG11201701295SA (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201462038522P 2014-08-18 2014-08-18
PCT/SG2015/050261 WO2016028224A1 (en) 2014-08-18 2015-08-18 Single-stage multi-string led driver with dimming

Publications (1)

Publication Number Publication Date
SG11201701295SA true SG11201701295SA (en) 2017-03-30

Family

ID=55351043

Family Applications (1)

Application Number Title Priority Date Filing Date
SG11201701295SA SG11201701295SA (en) 2014-08-18 2015-08-18 Single-stage multi-string led driver with dimming

Country Status (3)

Country Link
US (1) US20170280523A1 (en)
SG (1) SG11201701295SA (en)
WO (1) WO2016028224A1 (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107920403B (en) * 2016-11-08 2019-06-18 成都芯源系统有限公司 Dual-channel LED driver and short-circuit protection method thereof
WO2018125104A1 (en) * 2016-12-28 2018-07-05 Halliburton Energy Services, Inc. Current-to-voltage power converter
CN109392210A (en) * 2017-08-02 2019-02-26 深圳市暗能量电源有限公司 The LED illumination driving circuit of no several levels electric current output
US10362652B1 (en) 2017-09-01 2019-07-23 Universal Lighting Technologies, Inc. Lighting device with dimming reference control method to stabilize low output current
EP3474632B1 (en) * 2017-10-19 2020-07-15 ZKW Group GmbH Circuit assembly for generating a reference voltage for the power supply of a led arrangement
CN109714851B (en) * 2017-10-25 2021-04-02 朗德万斯公司 LED driver and driving method thereof
US10476395B2 (en) * 2017-11-30 2019-11-12 Futurewei Technologies, Inc. Voltage converting system and method of using the same
CN108200680A (en) * 2017-12-22 2018-06-22 华南理工大学 A kind of integrated LED driver flowed and dim coordination control ability
US11107386B2 (en) * 2018-09-10 2021-08-31 Lumileds Llc Pixel diagnostics with a bypass mode
CN113366919B (en) * 2018-12-07 2024-07-12 豪倍公司 Dimmer switch and method for determining a low-side trim set point for a dimming control signal
CN109788607A (en) * 2019-03-08 2019-05-21 杭州士兰微电子股份有限公司 LED dimmer, LED light adjusting system and its control method
US11381153B1 (en) 2019-09-06 2022-07-05 Universal Douglas Lighting America Method to balance the secondary winding current to improve the current control stability
CN112562580B (en) * 2020-12-18 2022-11-25 上海谦奕电子科技有限公司 LED display screen control method and system

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH033670A (en) * 1989-05-26 1991-01-09 Fuji Electric Co Ltd Method of controlling induction heating inverter
JPH09140130A (en) * 1995-11-13 1997-05-27 Yokogawa Electric Corp Switching power supply apparatus
JP3968572B2 (en) * 2002-06-07 2007-08-29 サンケン電気株式会社 Power converter with multiple inverters connected in parallel
JP4300810B2 (en) * 2003-02-03 2009-07-22 パナソニック株式会社 Discharge lamp lighting device
JP2006262640A (en) * 2005-03-17 2006-09-28 Sony Corp Switching power unit
JP2008027643A (en) * 2006-07-19 2008-02-07 Toshiba Lighting & Technology Corp Discharge lamp lighting device and luminaire
GB2457085B (en) * 2008-02-02 2010-03-17 Russell Jacques Bipolar power control
KR101008458B1 (en) * 2009-03-23 2011-01-14 삼성전기주식회사 LED driving circuit
US20100295471A1 (en) * 2009-05-25 2010-11-25 Sanken Electric Co., Ltd. Current balancing apparatus
JP5656378B2 (en) * 2009-08-26 2015-01-21 三菱電機株式会社 Light emitting diode lighting device, lighting fixture, and lighting system
JP2011082108A (en) * 2009-10-09 2011-04-21 Sharp Corp Led failure detecting device, backlight device, and liquid crystal display device
EP2362717A3 (en) * 2010-02-22 2017-01-11 Panasonic Intellectual Property Management Co., Ltd. Lighting Device and Illumination Fixture using thereof
US9000673B2 (en) * 2010-05-25 2015-04-07 Virginia Tech Intellectual Properties, Inc. Multi-channel two-stage controllable constant current source and illumination source
WO2012127844A1 (en) * 2011-03-24 2012-09-27 ローム株式会社 Switching power source control circuit for driving light-emitting element, and light-emitting device and electronic apparatus using same
US8575849B2 (en) * 2011-07-15 2013-11-05 Osram Sylvania Inc. Resonate driver for solid state light sources
JP5968633B2 (en) * 2012-02-06 2016-08-10 株式会社ダイヘン Power converter
JP5490294B2 (en) * 2013-07-23 2014-05-14 三菱電機株式会社 Lighting device and lighting device

Also Published As

Publication number Publication date
WO2016028224A1 (en) 2016-02-25
US20170280523A1 (en) 2017-09-28

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