BR102013017991A2 - Circuitos e métodos para acionar fontes de luz - Google Patents

Circuitos e métodos para acionar fontes de luz Download PDF

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Publication number
BR102013017991A2
BR102013017991A2 BRBR102013017991-4A BR102013017991A BR102013017991A2 BR 102013017991 A2 BR102013017991 A2 BR 102013017991A2 BR 102013017991 A BR102013017991 A BR 102013017991A BR 102013017991 A2 BR102013017991 A2 BR 102013017991A2
Authority
BR
Brazil
Prior art keywords
signal
mode
switch
light
current
Prior art date
Application number
BRBR102013017991-4A
Other languages
English (en)
Portuguese (pt)
Inventor
Ching-Chuan Kuo
Yung Lin Lin
Original Assignee
O2Micro Inc
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
Priority claimed from US13/559,451 external-priority patent/US9232591B2/en
Application filed by O2Micro Inc filed Critical O2Micro Inc
Publication of BR102013017991A2 publication Critical patent/BR102013017991A2/pt

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]
    • H05B45/10—Controlling the intensity of the light

Landscapes

  • Circuit Arrangement For Electric Light Sources In General (AREA)
BRBR102013017991-4A 2012-07-26 2013-07-15 Circuitos e métodos para acionar fontes de luz BR102013017991A2 (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US13/559,451 US9232591B2 (en) 2008-12-12 2012-07-26 Circuits and methods for driving light sources

Publications (1)

Publication Number Publication Date
BR102013017991A2 true BR102013017991A2 (pt) 2014-12-23

Family

ID=47757304

Family Applications (1)

Application Number Title Priority Date Filing Date
BRBR102013017991-4A BR102013017991A2 (pt) 2012-07-26 2013-07-15 Circuitos e métodos para acionar fontes de luz

Country Status (5)

Country Link
EP (1) EP2690930A1 (zh)
JP (1) JP2014026954A (zh)
CN (2) CN103582239B (zh)
BR (1) BR102013017991A2 (zh)
TW (2) TWI556686B (zh)

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* Cited by examiner, † Cited by third party
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WO2014065389A1 (en) 2012-10-25 2014-05-01 Semiconductor Energy Laboratory Co., Ltd. Central control system
TWI509974B (zh) * 2014-02-14 2015-11-21 Elite Semiconductor Esmt 交流電壓調整電路以及發光二極體亮度調整電路
TWI504313B (zh) * 2014-02-21 2015-10-11 High utilization of light emitting diode components
TWI561118B (en) * 2014-08-13 2016-12-01 Ind Tech Res Inst Dimming system and operating method thereof
CN104486860B (zh) * 2014-11-12 2018-03-09 肖志军 一种led灯调光电路
CN105680842B (zh) * 2014-11-18 2018-08-07 台湾半导体股份有限公司 可通过外部引脚调整操作模式的驱动电路
CN105792471A (zh) * 2014-12-26 2016-07-20 凹凸电子（武汉）有限公司 光源驱动电路、控制器和控制方法
KR20170071307A (ko) * 2015-12-15 2017-06-23 엘지이노텍 주식회사 전원 장치 및 그의 출력 전류 제어 방법
CN105744676B (zh) * 2016-01-29 2017-07-14 高玉扬 一种基于简单开关的led调光方法
DE102016107578B4 (de) * 2016-04-25 2023-06-01 Vossloh-Schwabe Deutschland Gmbh Betriebsschaltung und Verfahren zum Betreiben wenigstens eines Leuchtmittels
JP6617210B2 (ja) 2016-05-30 2019-12-11 シグニファイ ホールディング ビー ヴィＳｉｇｎｉｆｙ Ｈｏｌｄｉｎｇ Ｂ．Ｖ． 中性接続の喪失の場合における照明ドライバの保護方法及びそのような保護を含む照明ドライバ
CN105934040B (zh) * 2016-06-15 2018-06-19 陕西亚成微电子股份有限公司 一种调光电路
CN106314013A (zh) * 2016-08-19 2017-01-11 李莉 一种亮度可调节的led光源动漫拷贝台
CN109143873A (zh) * 2017-06-16 2019-01-04 佛山市顺德区美的电热电器制造有限公司 功能切换控制方法及装置、家用电器、存储介质
CN107613610B (zh) * 2017-09-26 2023-10-24 深圳市中科智联科技有限公司 智能照明控制器
US10136488B1 (en) * 2017-10-05 2018-11-20 Linear Technology Holding, LLC LED dimming
JP6988515B2 (ja) * 2018-01-25 2022-01-05 セイコーエプソン株式会社 光源装置、投写型表示装置、及び、半導体装置
CN108650738B (zh) * 2018-06-06 2024-04-23 深圳率能半导体有限公司 一种led控制电路
DE102019103660A1 (de) * 2019-02-13 2020-08-13 Vossloh-Schwabe Deutschland Gmbh Betriebsschaltung für das Betreiben mehrerer Lasten
CN110035584B (zh) * 2019-04-28 2024-03-19 深圳市晟碟半导体有限公司 一种提高调光精度的led调光电路、调光装置及调光方法
CN110572902B (zh) * 2019-08-27 2022-05-24 昂宝电子（上海）有限公司 准谐振调光控制系统和方法
TWI716152B (zh) * 2019-10-16 2021-01-11 東林科技股份有限公司 調光電路、具有此調光電路的調光器及其控制器
CN112788815B (zh) * 2019-11-04 2022-11-08 海信视像科技股份有限公司 显示装置及供电电路
CN110881231B (zh) * 2019-11-27 2021-05-18 成都芯源系统有限公司 调光电路及其控制方法

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* Cited by examiner, † Cited by third party
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JP2003157986A (ja) * 2001-11-26 2003-05-30 Matsushita Electric Works Ltd 照明装置
JP2009123681A (ja) * 2007-10-25 2009-06-04 Panasonic Electric Works Co Ltd Ｌｅｄ調光装置
US7759881B1 (en) * 2008-03-31 2010-07-20 Cirrus Logic, Inc. LED lighting system with a multiple mode current control dimming strategy
TWI406596B (zh) * 2008-06-30 2013-08-21 Green Solution Tech Co Ltd 發光二極體驅動電路、發光二極體驅動控制單元及其電晶體開關模組
US8076867B2 (en) * 2008-12-12 2011-12-13 O2Micro, Inc. Driving circuit with continuous dimming function for driving light sources
US8339067B2 (en) * 2008-12-12 2012-12-25 O2Micro, Inc. Circuits and methods for driving light sources
JP2010198860A (ja) * 2009-02-24 2010-09-09 Koito Mfg Co Ltd 放電灯点灯回路
US8912781B2 (en) * 2010-07-30 2014-12-16 Cirrus Logic, Inc. Integrated circuit switching power supply controller with selectable buck mode operation
WO2012024542A2 (en) * 2010-08-18 2012-02-23 Onchip Power Very high frequency switching cell-based power converter
US8237371B2 (en) * 2010-10-29 2012-08-07 O2 Micro, Inc Differential driving circuit for powering a light source
CN102387639B (zh) * 2011-02-16 2013-08-21 凹凸电子（武汉）有限公司 用于驱动光源的驱动电路、方法及调光控制器
TWM410424U (en) * 2011-04-07 2011-08-21 Excelliance Mos Corp Driving circuit of light emitting diode and light source apparatus
CN102395230B (zh) * 2011-05-04 2013-06-12 凹凸电子（武汉）有限公司 控制光源调光的控制器和方法及光源驱动电路

Also Published As

Publication number Publication date
TW201406196A (zh) 2014-02-01
CN103582239A (zh) 2014-02-12
TWI556686B (zh) 2016-11-01
TWI533746B (zh) 2016-05-11
TW201406207A (zh) 2014-02-01
EP2690930A1 (en) 2014-01-29
CN103582240A (zh) 2014-02-12
CN103582239B (zh) 2016-02-03
JP2014026954A (ja) 2014-02-06
CN103582240B (zh) 2015-12-09

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Legal Events

Date Code Title Description
B03A Publication of a patent application or of a certificate of addition of invention [chapter 3.1 patent gazette]
B11A Dismissal acc. art.33 of ipl - examination not requested within 36 months of filing
B11Y Definitive dismissal - extension of time limit for request of examination expired [chapter 11.1.1 patent gazette]