TW200509752A - Power supply for lighting - Google Patents

Power supply for lighting

Info

Publication number
TW200509752A
TW200509752A TW093116943A TW93116943A TW200509752A TW 200509752 A TW200509752 A TW 200509752A TW 093116943 A TW093116943 A TW 093116943A TW 93116943 A TW93116943 A TW 93116943A TW 200509752 A TW200509752 A TW 200509752A
Authority
TW
Taiwan
Prior art keywords
converter
feedback voltage
voltage
synchronism
detection circuit
Prior art date
Application number
TW093116943A
Other languages
English (en)
Inventor
Tomoaki Matsuda
Tatsuru Iwasa
Original Assignee
Japan Aviation Electron
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 Japan Aviation Electron filed Critical Japan Aviation Electron
Publication of TW200509752A publication Critical patent/TW200509752A/zh

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
    • 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

  • Circuit Arrangement For Electric Light Sources In General (AREA)
  • Dc-Dc Converters (AREA)
  • Liquid Crystal (AREA)
TW093116943A 2003-06-13 2004-06-11 Power supply for lighting TW200509752A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2003168730A JP2005006444A (ja) 2003-06-13 2003-06-13 照明灯電源装置

Publications (1)

Publication Number Publication Date
TW200509752A true TW200509752A (en) 2005-03-01

Family

ID=33509060

Family Applications (1)

Application Number Title Priority Date Filing Date
TW093116943A TW200509752A (en) 2003-06-13 2004-06-11 Power supply for lighting

Country Status (5)

Country Link
US (1) US20040251854A1 (zh)
JP (1) JP2005006444A (zh)
KR (1) KR20040107404A (zh)
CN (1) CN1575080A (zh)
TW (1) TW200509752A (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI422276B (zh) * 2009-09-30 2014-01-01 Lumens Digital Optics Inc 發光二極體光源的投影機電力控制方法
TWI501065B (zh) * 2013-09-06 2015-09-21 Leadtrend Tech Corp 可以調整流經一元件之一直流電流的電子裝置與控制方法

Families Citing this family (124)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7405523B2 (en) * 2001-05-26 2008-07-29 William George Wilhelm Remote control of lighting
US7511436B2 (en) * 2003-05-07 2009-03-31 Koninklijke Philips Electronics N.V. Current control method and circuit for light emitting diodes
WO2005039251A1 (en) * 2003-10-17 2005-04-28 Vicious Power Pty Ltd Electronic power control for lamps
JP4269959B2 (ja) * 2004-01-30 2009-05-27 ミツミ電機株式会社 電源回路及びその電源供給制御方法
US7202608B2 (en) * 2004-06-30 2007-04-10 Tir Systems Ltd. Switched constant current driving and control circuit
US20060038803A1 (en) * 2004-08-20 2006-02-23 Semiconductor Components Industries, Llc LED control method and structure therefor
US7375472B2 (en) * 2004-11-29 2008-05-20 02Micro International Limited Highly efficient driving of photoflash diodes using low and fixed voltage drop-out current sink
DE102005001767A1 (de) * 2005-01-13 2006-07-20 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Vorrichtung zum gesteuerten Schalten einer Lampe, Verwendung der Vorrichtung und entsprechendes Betriebsverfahren
DE102005016729B3 (de) * 2005-04-11 2006-10-26 Airbus Deutschland Gmbh Verfahren und Vorrichtung zum Betreiben einer weißen Lumineszenzdiode
JP5175427B2 (ja) * 2005-05-31 2013-04-03 Ｎｅｃディスプレイソリューションズ株式会社 発光素子駆動装置
EP1894444B1 (en) * 2005-06-10 2020-02-19 Avago Technologies International Sales Pte. Limited Regulation of electrical current through a resistive load
KR100810516B1 (ko) * 2005-07-01 2008-03-10 삼성전자주식회사 부하 구동장치 및 그 부하 구동방법
US7400310B2 (en) * 2005-11-28 2008-07-15 Draeger Medical Systems, Inc. Pulse signal drive circuit
RU2427109C2 (ru) * 2005-12-20 2011-08-20 Конинклейке Филипс Электроникс Н.В. Способ и устройство для управления током, подводимым к электронным приборам
CN1988743B (zh) * 2005-12-22 2010-09-01 乐金显示有限公司 驱动发光二极管的装置
US7923943B2 (en) * 2006-01-10 2011-04-12 Microsemi Corp.—Analog Mixed Signal Group Ltd. Secondary side post regulation for LED backlighting
TWI341510B (en) * 2006-01-26 2011-05-01 Au Optronics Corp Driver and driving method of semiconductor light emitting device array
KR100917623B1 (ko) * 2006-02-13 2009-09-17 삼성전자주식회사 Ｌｅｄ 구동장치
US7321203B2 (en) * 2006-03-13 2008-01-22 Linear Technology Corporation LED dimming control technique for increasing the maximum PWM dimming ratio and avoiding LED flicker
CN1845649B (zh) * 2006-05-15 2012-05-02 浙江大学 基于欧洲安装总线协议的卤素灯调光装置
US7649327B2 (en) * 2006-05-22 2010-01-19 Permlight Products, Inc. System and method for selectively dimming an LED
DE102006024422B4 (de) * 2006-05-24 2009-10-22 Austriamicrosystems Ag Schaltungsanordnung und Verfahren zur Spannungskonversion
KR100737867B1 (ko) * 2006-06-02 2007-07-12 삼성전자주식회사 발광장치 및 발광장치의 제어방법
JP5151258B2 (ja) * 2006-06-15 2013-02-27 株式会社リコー 昇圧型ｄｃ−ｄｃコンバータ用の半導体装置及び昇圧型ｄｃ−ｄｃコンバータ
DE102006029438B4 (de) * 2006-06-20 2018-05-17 Arnold & Richter Cine Technik Gmbh & Co. Betriebs Kg Verfahren und Vorrichtung zur Ansteuerung von Leuchtdioden einer Beleuchtungsvorrichtung
KR101101818B1 (ko) 2006-06-28 2012-01-05 삼성전자주식회사 디스플레이장치 및 그 제어방법
US7605550B2 (en) * 2006-07-17 2009-10-20 Microsemi Corp.—Analog Mixed Signal Group Ltd. Controlled bleeder for power supply
TWI316781B (en) * 2006-07-20 2009-11-01 Au Optronics Corp Dc to dc conversion circuit with variable output voltage
CN100449918C (zh) * 2006-08-11 2009-01-07 友达光电股份有限公司 可调输出电压的直流对直流转换电路
US7777424B2 (en) * 2006-08-18 2010-08-17 Dialight Corporation Method and apparatus for controlling an input voltage to a light emitting diode
GB2443091B (en) * 2006-10-19 2012-02-15 Radiant Res Ltd Improvements in or relating to lighting control systems
CN101169918B (zh) * 2006-10-23 2010-05-12 中华映管股份有限公司 驱动发光二极管以及发光二极管串的驱动电路
US7675245B2 (en) * 2007-01-04 2010-03-09 Allegro Microsystems, Inc. Electronic circuit for driving a diode load
JP2008178226A (ja) * 2007-01-18 2008-07-31 Fujitsu Ltd 電源装置および負荷装置への電源電圧の供給方法
US8008870B2 (en) * 2007-02-15 2011-08-30 Nec Display Solutions, Ltd. Constant-current drive circuit
US7855471B2 (en) * 2007-03-15 2010-12-21 Ricoh Company, Ltd. Power supply device and image forming apparatus
TW200844931A (en) * 2007-05-14 2008-11-16 Chunghwa Picture Tubes Ltd Method for controlling backlight apparatus and luminance control circuit thereof
US8350491B2 (en) * 2007-06-07 2013-01-08 The Sloan Company, Inc. Self adjusting power supply apparatus and method
KR101473807B1 (ko) * 2007-07-20 2014-12-18 삼성디스플레이 주식회사 표시 장치용 광원 모듈 및 이를 포함하는 표시 장치
GB2453314A (en) * 2007-08-09 2009-04-08 Kenneth John Jewell Fully variable LED brightness using a digital control method
DE102007038892A1 (de) * 2007-08-17 2009-04-09 Texas Instruments Deutschland Gmbh Hochgeschwindigkeits-LED-Treiber
JP2009124027A (ja) * 2007-11-16 2009-06-04 Sanyo Electric Co Ltd 発光素子駆動回路及び携帯電話
WO2009064682A2 (en) 2007-11-16 2009-05-22 Allegro Microsystems, Inc. Electronic circuits for driving series connected light emitting diode strings
US8118447B2 (en) 2007-12-20 2012-02-21 Altair Engineering, Inc. LED lighting apparatus with swivel connection
US8360599B2 (en) 2008-05-23 2013-01-29 Ilumisys, Inc. Electric shock resistant L.E.D. based light
US7999487B2 (en) * 2008-06-10 2011-08-16 Allegro Microsystems, Inc. Electronic circuit for driving a diode load with a predetermined average current
US7938562B2 (en) 2008-10-24 2011-05-10 Altair Engineering, Inc. Lighting including integral communication apparatus
US8901823B2 (en) 2008-10-24 2014-12-02 Ilumisys, Inc. Light and light sensor
US8214084B2 (en) 2008-10-24 2012-07-03 Ilumisys, Inc. Integration of LED lighting with building controls
US8324817B2 (en) 2008-10-24 2012-12-04 Ilumisys, Inc. Light and light sensor
US8653984B2 (en) 2008-10-24 2014-02-18 Ilumisys, Inc. Integration of LED lighting control with emergency notification systems
TWI410171B (zh) * 2008-12-12 2013-09-21 Chunghwa Picture Tubes Ltd 電流平衡電路及具此電路之背光模組
JP5412122B2 (ja) * 2009-01-29 2014-02-12 ローム株式会社 Ｌｅｄ照明装置
CN101827476A (zh) * 2009-03-04 2010-09-08 立锜科技股份有限公司 具有交直流直接转换控制功能的led驱动电路与相关方法和集成电路
US8497478B2 (en) * 2009-03-31 2013-07-30 Osram Sylvania Inc. High voltage supply to increase rise time of current through light source in an optical sensor system
KR101028152B1 (ko) * 2009-05-08 2011-04-08 엘지이노텍 주식회사 발광 다이오드 구동 장치
US8330381B2 (en) 2009-05-14 2012-12-11 Ilumisys, Inc. Electronic circuit for DC conversion of fluorescent lighting ballast
US8299695B2 (en) 2009-06-02 2012-10-30 Ilumisys, Inc. Screw-in LED bulb comprising a base having outwardly projecting nodes
US8421366B2 (en) 2009-06-23 2013-04-16 Ilumisys, Inc. Illumination device including LEDs and a switching power control system
JP4796642B2 (ja) * 2009-07-21 2011-10-19 シャープ株式会社 照明装置及び調光装置
WO2011017449A2 (en) * 2009-08-04 2011-02-10 Asic Advantage, Inc. Multiple independently regulated parameters using a single magnetic circuit element
CN101631409B (zh) * 2009-08-20 2013-01-16 英飞特电子（杭州）股份有限公司 用于led的pwm调光电路
US8395329B2 (en) * 2009-09-09 2013-03-12 Bel Fuse (Macao Commercial Offshore) LED ballast power supply having digital controller
CN102045916A (zh) * 2009-10-15 2011-05-04 富准精密工业(深圳)有限公司 发光二极管灯具及其控制电路
JP5367173B2 (ja) * 2009-10-26 2013-12-11 エアテック システム カンパニー リミテッド 定電流駆動ｌｅｄモジュール装置
JPWO2011055533A1 (ja) * 2009-11-04 2013-03-28 ローム株式会社 バックライト用ｌｅｄストリングの駆動回路および駆動方法、ならびにそれを用いたバックライトおよびディスプレイ装置
CN102083252A (zh) * 2009-11-26 2011-06-01 富准精密工业(深圳)有限公司 发光二极管灯具及其控制电路
KR101325314B1 (ko) * 2009-12-11 2013-11-08 엘지디스플레이 주식회사 액정표시장치
TWI414209B (zh) * 2009-12-30 2013-11-01 Au Optronics Corp 發光二極體驅動電路
EP2553316B8 (en) 2010-03-26 2015-07-08 iLumisys, Inc. Led light tube with dual sided light distribution
EP2553332B1 (en) 2010-03-26 2016-03-23 iLumisys, Inc. Inside-out led bulb
EP2553320A4 (en) 2010-03-26 2014-06-18 Ilumisys Inc LED LAMP COMPRISING A THERMOELECTRIC GENERATOR
KR101448655B1 (ko) * 2010-06-23 2014-10-08 엘지전자 주식회사 조명용 역률 보상 회로 및 구동 방법
US8454193B2 (en) 2010-07-08 2013-06-04 Ilumisys, Inc. Independent modules for LED fluorescent light tube replacement
WO2012009260A2 (en) 2010-07-12 2012-01-19 Altair Engineering, Inc. Circuit board mount for led light tube
GB2484535B (en) * 2010-10-15 2015-08-12 New Lighting Technology Ltd Illumination apparatus and method
KR20130129957A (ko) 2010-10-24 2013-11-29 마이크로세미 코포레이션 Led 구동부를 위한 동기 조절부
US9614452B2 (en) 2010-10-24 2017-04-04 Microsemi Corporation LED driving arrangement with reduced current spike
US8523394B2 (en) 2010-10-29 2013-09-03 Ilumisys, Inc. Mechanisms for reducing risk of shock during installation of light tube
JP5842420B2 (ja) * 2010-11-15 2016-01-13 サンケン電気株式会社 調光装置
US8870415B2 (en) 2010-12-09 2014-10-28 Ilumisys, Inc. LED fluorescent tube replacement light with reduced shock hazard
US8692482B2 (en) 2010-12-13 2014-04-08 Allegro Microsystems, Llc Circuitry to control a switching regulator
WO2012106143A2 (en) * 2011-01-31 2012-08-09 Marvell World Trade Ltd. Systems and methods for driving light emitting diodes
KR102062566B1 (ko) * 2011-02-07 2020-01-06 온세미컨덕터코리아 주식회사 Ｌｅｄ 발광 장치 및 그 구동 방법
KR101712676B1 (ko) * 2011-02-18 2017-03-07 매그나칩 반도체 유한회사 Ｐｗｍ 제어 회로 및 이를 이용한 ｌｅｄ 구동회로
CN102143632A (zh) * 2011-02-23 2011-08-03 尚雪峰 一种智能负载均衡可调电流式直流电源
US9107257B2 (en) 2011-02-24 2015-08-11 Osram Sylvania Inc. Adaptive frequency control to change a light output level
JP5891454B2 (ja) * 2011-04-18 2016-03-23 パナソニックＩｐマネジメント株式会社 半導体発光素子の点灯装置およびそれを用いた照明器具
US9155156B2 (en) 2011-07-06 2015-10-06 Allegro Microsystems, Llc Electronic circuits and techniques for improving a short duty cycle behavior of a DC-DC converter driving a load
US9265104B2 (en) 2011-07-06 2016-02-16 Allegro Microsystems, Llc Electronic circuits and techniques for maintaining a consistent power delivered to a load
WO2013021412A1 (ja) 2011-08-05 2013-02-14 三菱電機株式会社 Ｌｅｄ点灯装置
US9072171B2 (en) 2011-08-24 2015-06-30 Ilumisys, Inc. Circuit board mount for LED light
JP2013118131A (ja) * 2011-12-05 2013-06-13 Panasonic Corp 点灯装置およびそれを備えた照明器具
WO2013131002A1 (en) 2012-03-02 2013-09-06 Ilumisys, Inc. Electrical connector header for an led-based light
CN103517501B (zh) * 2012-06-28 2016-10-05 联想(北京)有限公司 发光单元驱动器及驱动方法、以及发光装置
US9163794B2 (en) 2012-07-06 2015-10-20 Ilumisys, Inc. Power supply assembly for LED-based light tube
US9271367B2 (en) 2012-07-09 2016-02-23 Ilumisys, Inc. System and method for controlling operation of an LED-based light
US9144126B2 (en) 2012-08-22 2015-09-22 Allegro Microsystems, Llc LED driver having priority queue to track dominant LED channel
US8957607B2 (en) 2012-08-22 2015-02-17 Allergo Microsystems, LLC DC-DC converter using hysteretic control and associated methods
CN103052212A (zh) * 2012-11-29 2013-04-17 安徽冠宇光电科技有限公司 一种过流保护led灯
US9485814B2 (en) * 2013-01-04 2016-11-01 Integrated Illumination Systems, Inc. Systems and methods for a hysteresis based driver using a LED as a voltage reference
US8994279B2 (en) 2013-01-29 2015-03-31 Allegro Microsystems, Llc Method and apparatus to control a DC-DC converter
US9053670B2 (en) * 2013-03-11 2015-06-09 Shenzhen China Star Optoelectronics Technology Co., Ltd Liquid crystal display apparatus and LED backlight module thereof
US9285084B2 (en) 2013-03-14 2016-03-15 Ilumisys, Inc. Diffusers for LED-based lights
JP6248430B2 (ja) * 2013-06-24 2017-12-20 サンケン電気株式会社 Ｌｅｄ駆動装置及びｌｅｄ点灯装置並びに誤差増幅回路
US9491815B2 (en) 2013-10-02 2016-11-08 Microsemi Corporation LED luminaire driving circuit and method
US9267650B2 (en) 2013-10-09 2016-02-23 Ilumisys, Inc. Lens for an LED-based light
CN103687227A (zh) * 2013-12-06 2014-03-26 彩虹集团公司 一种led并联均流供电装置
CN103747569B (zh) * 2013-12-25 2015-11-25 矽力杰半导体技术(杭州)有限公司 一种pwm调光控制方法、控制电路及应用其的led驱动电路
US9230512B2 (en) * 2013-12-30 2016-01-05 Shenzhen China Star Optoelectronics Technoogy Co., Ltd LED backlight driving circuit and liquid crystal device
KR20160111975A (ko) 2014-01-22 2016-09-27 일루미시스, 인크. 어드레스된 led들을 갖는 led 기반 조명
TWI752898B (zh) 2014-03-25 2022-01-21 日商新力股份有限公司 發訊裝置及通訊系統
US9510400B2 (en) 2014-05-13 2016-11-29 Ilumisys, Inc. User input systems for an LED-based light
US10057959B2 (en) * 2014-09-29 2018-08-21 Texas Instruments Incorporated Power over ethernet powered device having automatic power signature
US9781784B2 (en) 2014-11-05 2017-10-03 Texas Instruments Incorporated Control of illumination devices using DC-DC converters
US10161568B2 (en) 2015-06-01 2018-12-25 Ilumisys, Inc. LED-based light with canted outer walls
US10432413B2 (en) 2017-02-07 2019-10-01 Texas Instruments Incorporated Automatic power over ethernet pulse width signaling correction
JP2018206485A (ja) * 2017-05-30 2018-12-27 パナソニックＩｐマネジメント株式会社 制御回路、照明装置、照明器具及び看板
JP7027720B2 (ja) * 2017-08-07 2022-03-02 富士電機株式会社 電力変換装置
CN109413791B (zh) * 2017-08-18 2020-11-24 明纬(广州)电子有限公司 回授电路
US10193448B1 (en) * 2018-03-26 2019-01-29 Semiconductor Components Industries, Llc Method of forming a power supply control circuit and structure therefor
US10877500B2 (en) * 2018-08-30 2020-12-29 Qualcomm Incorporated Digitally-assisted dynamic multi-mode power supply circuit
JP7428881B2 (ja) * 2020-01-24 2024-02-07 株式会社デンソーウェーブ 照明回路及び光学的情報読取装置
CN113996252A (zh) * 2021-10-28 2022-02-01 西安交通大学 一种用于pvc凝胶活化的活化系统

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6870328B2 (en) * 2001-12-19 2005-03-22 Toyoda Gosei Co., Ltd. LED lamp apparatus for vehicles
GB0204212D0 (en) * 2002-02-22 2002-04-10 Oxley Dev Co Ltd Led drive circuit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI422276B (zh) * 2009-09-30 2014-01-01 Lumens Digital Optics Inc 發光二極體光源的投影機電力控制方法
TWI501065B (zh) * 2013-09-06 2015-09-21 Leadtrend Tech Corp 可以調整流經一元件之一直流電流的電子裝置與控制方法

Also Published As

Publication number Publication date
JP2005006444A (ja) 2005-01-06
CN1575080A (zh) 2005-02-02
KR20040107404A (ko) 2004-12-20
US20040251854A1 (en) 2004-12-16

Similar Documents

Publication Publication Date Title
TW200509752A (en) Power supply for lighting
CA2651277A1 (en) A power source powering and controlling the operation of a device
KR970704325A (ko) 고압방전램프 작동방법 및 회로장치
CA2498630A1 (en) Soft-switching half-bridge inverter power supply system
TW200729124A (en) Solid state lighting panels with variable voltage boost current sources
CA2344408A1 (en) Ballast circuit for high intensity discharge lamps
WO2006124278A3 (en) Dimmer having a power supply monitoring circuit
EP1376836A3 (en) Quick-start DC-DC converter circuit and method
CN101252797A (zh) 发光装置
CN103747578B (zh) Led背光驱动电路以及液晶显示器
TW200508719A (en) Power supply apparatus
CA2206200A1 (en) Discharge lamp lighting device
TW200504485A (en) Switching constant-current power device
WO2014188219A1 (en) Improvements relating to power adaptors
KR20060056323A (ko) Ｌｅｄ 조명 장치 및 방법과, 배터리 공급형 장치
ATE261234T1 (de) Elektronisches vorschaltgerät mit parallelladung und reihensteuerung
WO2003085813A3 (en) Line frequency switching regulator
AU2003283779A1 (en) Circuit arrangement for operating a high pressure discharge lamp
WO2005010943A3 (en) High side power switch with charge pump and bootstrap capacitor
WO1999003311A3 (en) Circuit arrangement
DE60122173D1 (de) Schaltung
CN113841336A (zh) 负电压轨
CN207460548U (zh) 一种led灯具电源
WO2003005544A3 (en) A control circuit for an inductive device
Lin et al. A LED driver based on pulse current modulator