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CN1459216A - 光源控制设备 - Google Patents

光源控制设备 Download PDF

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Publication number
CN1459216A
CN1459216A CN02800705A CN02800705A CN1459216A CN 1459216 A CN1459216 A CN 1459216A CN 02800705 A CN02800705 A CN 02800705A CN 02800705 A CN02800705 A CN 02800705A CN 1459216 A CN1459216 A CN 1459216A
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light
light source
display
equipment according
equipment
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CN100367827C (zh
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S·穆图
张劲
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Signify Holding BV
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Koninklijke Philips Electronics NV
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    • 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]
    • H05B45/20—Controlling the colour of the light
    • H05B45/24—Controlling the colour 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]
    • H05B45/39—Circuits containing inverter bridges
    • 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
    • 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
    • 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]
    • H05B45/385—Switched mode power supply [SMPS] using flyback topology

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  • Circuit Arrangement For Electric Light Sources In General (AREA)
  • Liquid Crystal Display Device Control (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)

Abstract

本发明披露了一种用于控制和调节用于零售陈列系统的陈列光的设备，该设备包括与多个光源关联、用于调节光源以选择性地陈列特定产品的计算机。根据对多种产品中的每种产品规定最佳照明条件的预存表和反馈实际照明条件的反馈回路，调节这些光源。

Description

光源控制设备
本发明涉及商业陈列系统等，更具体地说，本发明涉及用于照亮这种商业陈列系统等的改进型设备。本发明特别可以应用于在零售环境下使用的商业冷藏系统，例如零售陈列冰柜。
基于红-绿-蓝(RGB)的白色发光二极管(“LED”)的发光过程在本技术领域内众所周知，它可以应用于背照LCD显示板、照亮商业冰柜、标记等。对于这些应用，可以采用线性电源或开关型电源驱动LED。采用线性电源的整个系统的效率低，而采用开关型电源克服了此问题。由于存在3种LED光源，所以根据适当电流控制方案，利用3个独立电源驱动LED。在此配置中，每个电源可以含有独立AC/DC变换器、功率因数校正单元、隔离变压器以及DC/AC变换器系统。在此方案中，由于有3个独立AC/DC变换器、功率因数校正单元和隔离变压器，所以存在冗余。此外，还要求单独控制电源内的各变换器。此方案会增加成本、提高控制的复杂度并降低性能。
在此说明的现有技术的另一个问题是，精确控制所发出的每种光的量。更具体地说，由红、绿和蓝发光二极管发出的光的组合产生的光的颜色主要由混合在一起的每种光的相对量确定。每种光的光源对寿命和温度以及其它因素具有不同的敏感度。因此，要保持适当量的每种颜色的光使得最终产生总光量合适即使有可能也是非常困难的。
当前系统中未解决的另一个问题是，在陈列箱或零售陈列冷藏设备内，用于陈列特定产品的光的种类和光量影响顾客的购买决定。现在没有哪种技术总能确保利用最佳光照条件陈列每种特定产品。
根据本发明可以克服现有技术的上述以及其它问题，本发明涉及适用于商业陈列照明系统的LED电流驱动器。根据本发明，各驱动器以互相之间的特定比例驱动红、绿和蓝LED。反馈回路将颜色信息和光强信息送到微处理器，微处理器调节红、绿、蓝各自的光量以实现规定的照明光强和照明颜色。
在增强型实施例中，提供了计算机和存储器，以根据要陈列的特定产品或一天中的特定时间，确定所使用的光的光强和颜色。具体地说，计算机调节光的颜色和/或光强以在特定时间优化陈列，或者对特定产品进行优化陈列。在一个典型实施例中，利用微处理器控制AC分布电源系统将LED驱动电流送到白LED照明器以照亮商业冰柜。该AC分布系统含有：前端AC/DC变换器，可以进行功率因数校正；高频逆变器；隔离变压器；以及3个DC/AC变换器，具有RGB驱动电流控制系统。单个前端AC/DC变换器系统转换AC电源并保持恒DC链路电压作为高频DC/AC逆变器的输入。AC/DC变换器还在AC电网上进行功率因数校正。高频变换器将DC电压转换为AC电压，并利用LED驱动电流控制，对3个AC/DC变换器提供电源。
微处理器系统控制功率变换器系统。除了对LED照明器产生的白色光进行控制外，微处理器系统还对该变换器系统提供集总闭环控制和PWM的生成。该方法对LED驱动器系统提供了一种综合解决方案。微处理器系统的控制算法被设计为模块化并具有多处理特性，以提供微处理器系统的有效控制能力。
微处理器系统还可以选择性地连接到用户计算机，该计算机根据冰柜内陈列的食品进行了编程。在将特定食品陈列在冰柜内时，根据编程的用户优先权，商场内的计算机选择该系统应该产生的适当白色点和照明程度。该计算机在合适的时间将此信息送到微处理器系统，微处理器控制驱动系统产生要求的颜色和照明程度。因此，可以自动选择用于陈列食品的颜色和照明程度。计算机还可以以这样的方式开启或停止冰柜驱动器，即在不需要时，自动关闭冰柜内的光，从而节省了电能。
在另一个增强型实施例中，该系统设计为从诸如手持键盘或条形码扫描器的输入装置接收数据。
图1示出本发明典型实施例的总体方框图；
图2示出与本发明一起使用的分布式电源的示意图；
图3示出根据本发明典型实施例用于驱动发光二极管的分布式电源的第二实施例；以及
图4示出用于选择照明系统的特定颜色的用户接口。
图1示出根据本发明典型实施例用于基于RGB LED的冰柜驱动器的微处理器控制的AC电源系统的总图。前端AC/DC变换器10、高频DC/AC变换器20以及用于提供RGB LED驱动电流的3个负载端AC/DC变换器30、31和32提供电源。该系统包括红、绿和蓝LED光源120、130和140。每个红、绿和蓝LED光源均由多个适当串联和/或并联配置的LED构成。
光源内还有对白色光进行闭环反馈控制的诸如光敏二极管的光传感器和热沉温度传感器(未示出)。将光源的光输出送到混合光学元件和光纤系统，以将该光传送到冰柜或类似环境中。然而，可以采用传送光的任何适当装置。
微处理器系统50控制该系统。微处理器系统利用反馈系统62将变量送到微处理器50。将控制信号送到PWM处理与隔离61用于控制DC/AC变换器20，如图所示。通过调节所产生的PWM信号的振幅和/或占空比，调节送到每个驱动器30至32的功率。
微处理器系统与用户接口和消息显示系统64相连。或者通过红外通信或者通过串行/并行端口52，微处理器系统还与可选计算机51或计算机网络53相连。
前端AC/DC变换器10的主要功能是将AC电压变换为DC电压。此外，使AC/DC变换器10在可能具有常规电压输入的AC电网进行功率因数校正。前端AC/DC变换器10基于回扫或升压拓扑结构。
微处理器50实现用于输出电压和AC电网功率因数校正的反馈控制系统，微处理器50通过PWM处理与隔离器61输出所需控制信号。微处理器50还产生PWM选通信号。为此，除了DC链路电压外，线电流也是反馈变量之一，它示于62。
然后，微处理器50直接将PWM选通信号送到AC/D变换器10。可选地，还可以在外部实现功率因数校正和PWM处理功能。在这种情况下，AC/DC变换器含有用于进行PFC和PWM处理的必要功能块。
将AC/DC变换器系统的输出连接到高频DC/AC变换器系统20的输入部分。DC/AC变换器系统将DC电压变换为高频AC电压。或者利用谐振变换器拓扑结构，或者利用矩形波变换器拓扑结构实现DC/AC变换器。例如，图2示出基于谐振变换器拓扑结构的DC/AC变换器系统。在图2中，谐振变换器系统基于与谐振回路201相连的半桥式变换器系统202。可选地，也可以采用全桥式配置。将该变换器的输出送到其输出与高频隔离变压器203相连的适当谐振回路。然后，该变压器驱动变换器30至32，如图所示。
对于特定应用，可以做某些简化。例如，在光输出电平不高时，可以采用一些单级电路。图3示出图2所示电源系统的另一个实施例。图3所示的装置包括利用唯一功率因数校正过程运行的、并联的3个回扫变换器。在这种情况下，以输入电压的线路频率实现AC分布系统。该系统也由微处理器50控制。
回头参考图1，将AC/DC变换器30至32的输出连接到RGB LED光源，并将调节后的驱动电流送到LED光源120、120和140。可以将恒DC电流或PWM电流脉冲送到RGB LED光源。为了根据公知技术控制白色光的颜色和照明程度，利用白色光控制系统确定DC电流的振幅或PWM电流脉冲的占空比。该控制系统也可以由微处理器实现。
如图1所示，适当光传感器40和热沉温度传感器41用于检测LED的光输出和热沉温度。通过反馈电路62，将这些参数送到微处理器50。微处理器50计算白色照明器的颜色和照明程度。然后，微处理器50求得要求的LED驱动电流或PWM选通脉宽。然后，控制AC/DC变换器提供要求的LED驱动电流。
为了将反馈信号输入到微处理器系统，采用了反馈电路62。反馈电路62包括用于将反馈信号直接送到微处理器系统50内的模数转换器161的检测与调节电路。反馈变量可以包括：LED120、130和140输出的LED光输出、传感器41输出的热沉温度、LED驱动电流、DC链路电源和/或线电流。
反馈电路还包括故障检测电路，在出现故障时，该故障检测电路就产生中断。将故障检测电路的输出直接连接到微处理器系统内的不可掩蔽的中断。
微处理器50直接提供PWM选通信号，该PWM选通信号首先通过隔离电路61。将隔离电路的输出送到AC/DC变换器10、DC/AC变换器20以及LED驱动器30、31和32内的专用MOSFET驱动器。
微处理器50还与用户接口系统63相连，用于手动选择白色发光二极管的颜色和照明程度。图4示出用户接口系统的典型实施例，该用户接口系统包括开关401至403以及开关解码逻辑电路404。在开关闭合时，解码逻辑电路404检测到开关闭合，并输出数字形式的数据。利用红外通信或通过电缆或其它装置，将解码逻辑输出连接到微处理器。用户接口63还包括用于启动或停止该系统的ON/OFF开关401，而且开关401还用于选择颜色和照明程度。
微处理器50还与消息显示系统64相连，消息显示系统64用于显示微处理器系统的状态，例如选择颜色、系统状况以及照明程度。
微处理器50可以包括：至少一个CPU或DSP 160；诸如模数转换器和数模转换器的模拟接口装置161；诸如串行输入/输出、红外端口、JTAG接口、数字端口的数字接口162；以及诸如存储器、定时器以及时钟的其它装置163。如果要在微处理器系统内实现所有控制功能和PWM处理，则可以采用具有一个以上微处理器的多处理器系统。
将用于检测光、LED驱动电流以及DC链路电压的反馈电路62的输出输入到模数转换器161，模数转换器161将模拟信号转换为控制算法使用的数字信号。
微处理器系统还与计算机51相连，计算机51内含有关于食品以及将要陈列在冰柜内的食品的时间、日期的信息。还对计算机进行编程以根据要陈列的食品选择适当白色点和照明程度。通过红外端口，或者通过串行端口或并行端口或者JTAG连接器，微处理器系统可以与该计算机相连。对微处理器系统适当配备有合适的接口系统来处理这种连通性。然后，根据要处理的食品，该计算机提供关于白色发光二极管的颜色和照明程度的信息。因此，可以自动选择白色发光二极管的颜色和照明程度，并根据食品自动产生适当白色光。
该计算机还含有关于商场营业时间的信息。因此，可以在商场开始营业时它启动冰柜LED光源，而在商场停止营业时关闭该驱动器。这种设计自动节省能源。
可选地，计算机或者在本机存储所有产品的数据库，或者访问所有产品的数据库，而不存储使用时间。在用户将产品放入冰柜时，他或她利用可选条形码阅读器、手持键盘或其它类似装置将它扫描到计算机内。然后，该计算机通过查表，根据该产品的存储信息，设置照明程度和颜色。
尽管以上对本发明优选实施例进行了说明，但是本技术领域内的技术人员可以设想对其做各种调整和附加。这些调整属于所附权利要求所述的本发明范围。

Claims (10)

1.用于对要被混合而形成预定颜色的光的多个光源进行控制的设备，所述设备包括：
多色传感器，用于检测每个所述光源发出的光量；
存储装置，用于存储指示期望每个所述光源发出的光量的预定值；
处理器，用于将检测的每个所述光源发出的光量与要求的每个所述光源发出的光量进行比较，并根据比较结果对所述光源的电源的输入值进行调节。
2.根据权利要求1所述的设备，其中被调节的所述值是脉宽调制(PWM)信号。
3.根据权利要求2所述的设备，其中被调节的所述PWM值至少是所述PWM信号的振幅或占空比之一。
4.根据权利要求1所述的设备，其中所述处理器与独立计算机相连，所述计算机包括用于根据测量条件和预定输入控制所述光源发出的光量的数据和软件。
5.根据权利要求4所述的设备，其中通过输入将要利用预定颜色的所述光陈列的产品，获得所述测量条件，并且所述预定输入是表示利用其陈列所述产品的预定颜色的存储值。
6.根据权利要求4所述的设备，其中所述测量条件是时间。
7.根据权利要求2所述的设备，其中调节所述PWM信号以控制预定颜色和以所述颜色发出的光的光强。
8.根据权利要求1所述的、至少用于调节颜色和为了陈列要销售的产品而需发出的光强之一的设备，所述设备包括：
存储值表，所述存储值表示用于各种待陈列产品的多个光源中的每个光源的期望相对值；
外部接口，用于从输入装置接收表示将要利用所述光陈列的产品的信息；以及
控制逻辑，用于执行查表，并调节各光源的相对光强从而使所述光源发出所述要求存储值。
9.根据权利要求8所述的设备，其中所述输入装置是条形码扫描器。
10.根据权利要求1所述的设备，该设备进一步包括DC/AC变换器，用于独立调节多个发光二极管(LED)驱动器中的每个发光二极管驱动器的输出电流。
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Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100403358C (zh) * 2004-11-23 2008-07-16 普立尔科技股份有限公司 发光二极管控制装置及其方法
CN100435004C (zh) * 2005-05-23 2008-11-19 三菱电机株式会社 面状光源装置以及使用其的显示装置
CN100449372C (zh) * 2005-01-11 2009-01-07 友达光电股份有限公司 混光控制单元
CN102217418A (zh) * 2008-11-18 2011-10-12 通用电气公司 包括具有隔离的多通道输出的单个反相器电路的led驱动器
CN101346082B (zh) * 2005-12-23 2012-03-21 皇家飞利浦电子股份有限公司 用于商店的展示系统的颜色匹配
CN102668701A (zh) * 2009-12-29 2012-09-12 爱特梅尔公司 用于具有功率因数校正能力的智能发光二极管驱动器的方法及装置
CN102783253A (zh) * 2010-04-09 2012-11-14 三菱化学株式会社 调光装置和led照明系统
CN103209526A (zh) * 2007-03-12 2013-07-17 塞瑞斯逻辑公司 发光二极管照明系统及控制发光二极管照明系统的方法
CN103222341A (zh) * 2010-11-12 2013-07-24 东芝照明技术株式会社 Led点灯装置以及led照明装置
CN103619234A (zh) * 2012-04-04 2014-03-05 奥林巴斯医疗株式会社 光源装置
CN103890685A (zh) * 2011-10-25 2014-06-25 惠普发展公司，有限责任合伙企业 驱动器托架光源控制
US9000680B2 (en) 2007-03-12 2015-04-07 Cirrus Logic, Inc. Lighting system with lighting dimmer output mapping
US9025347B2 (en) 2010-12-16 2015-05-05 Cirrus Logic, Inc. Switching parameter based discontinuous mode-critical conduction mode transition
US9071144B2 (en) 2011-12-14 2015-06-30 Cirrus Logic, Inc. Adaptive current control timing and responsive current control for interfacing with a dimmer
US9084316B2 (en) 2010-11-04 2015-07-14 Cirrus Logic, Inc. Controlled power dissipation in a switch path in a lighting system
US9155163B2 (en) 2010-11-16 2015-10-06 Cirrus Logic, Inc. Trailing edge dimmer compatibility with dimmer high resistance prediction
US9155174B2 (en) 2009-09-30 2015-10-06 Cirrus Logic, Inc. Phase control dimming compatible lighting systems
US9167662B2 (en) 2012-02-29 2015-10-20 Cirrus Logic, Inc. Mixed load current compensation for LED lighting
US9184661B2 (en) 2012-08-27 2015-11-10 Cirrus Logic, Inc. Power conversion with controlled capacitance charging including attach state control
US9207265B1 (en) 2010-11-12 2015-12-08 Cirrus Logic, Inc. Dimmer detection
US9240725B2 (en) 2010-07-30 2016-01-19 Cirrus Logic, Inc. Coordinated dimmer compatibility functions
US9307601B2 (en) 2010-08-17 2016-04-05 Koninklijke Philips N.V. Input voltage sensing for a switching power converter and a triac-based dimmer
US9491845B2 (en) 2010-11-04 2016-11-08 Koninklijke Philips N.V. Controlled power dissipation in a link path in a lighting system
US9532415B2 (en) 2010-08-24 2016-12-27 Philips Lighting Hiolding B.V. Multi-mode dimmer interfacing including attach state control
CN105517255B (zh) * 2007-05-22 2018-05-15 飞利浦灯具控股公司 远程照明控制
US10187934B2 (en) 2013-03-14 2019-01-22 Philips Lighting Holding B.V. Controlled electronic system power dissipation via an auxiliary-power dissipation circuit

Families Citing this family (225)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6806659B1 (en) * 1997-08-26 2004-10-19 Color Kinetics, Incorporated Multicolored LED lighting method and apparatus
US7038398B1 (en) * 1997-08-26 2006-05-02 Color Kinetics, Incorporated Kinetic illumination system and methods
US20040052076A1 (en) * 1997-08-26 2004-03-18 Mueller George G. Controlled lighting methods and apparatus
US7014336B1 (en) * 1999-11-18 2006-03-21 Color Kinetics Incorporated Systems and methods for generating and modulating illumination conditions
US20030133292A1 (en) * 1999-11-18 2003-07-17 Mueller George G. Methods and apparatus for generating and modulating white light illumination conditions
US7028899B2 (en) * 1999-06-07 2006-04-18 Metrologic Instruments, Inc. Method of speckle-noise pattern reduction and apparatus therefore based on reducing the temporal-coherence of the planar laser illumination beam before it illuminates the target object by applying temporal phase modulation techniques during the transmission of the plib towards the target
US6977808B2 (en) 1999-05-14 2005-12-20 Apple Computer, Inc. Display housing for computing device
US6357887B1 (en) * 1999-05-14 2002-03-19 Apple Computers, Inc. Housing for a computing device
WO2001024584A1 (en) * 1999-09-29 2001-04-05 Color Kinetics, Inc. Systems and methods for calibrating light output by light-emitting diodes
US6660948B2 (en) * 2001-02-28 2003-12-09 Vip Investments Ltd. Switch matrix
US6992803B2 (en) * 2001-05-08 2006-01-31 Koninklijke Philips Electronics N.V. RGB primary color point identification system and method
ATE347158T1 (de) * 2001-06-14 2006-12-15 Koninkl Philips Electronics Nv Wechselrichter für eine flüssigkristallanzeige, und stromversorgung mit einem solchen wechselrichter
US7766517B2 (en) * 2001-06-15 2010-08-03 Apple Inc. Active enclosure for computing device
US6630801B2 (en) * 2001-10-22 2003-10-07 Lümileds USA Method and apparatus for sensing the color point of an RGB LED white luminary using photodiodes
US6753661B2 (en) * 2002-06-17 2004-06-22 Koninklijke Philips Electronics N.V. LED-based white-light backlighting for electronic displays
EP1411751B1 (en) * 2002-10-14 2012-05-30 Philips Lumileds Lighting Company LLC Control circuit for LEDs
TWI358688B (en) * 2002-10-14 2012-02-21 Philips Lumileds Lighting Co Circuit for operating a led array
JP2004138958A (ja) * 2002-10-21 2004-05-13 Semiconductor Energy Lab Co Ltd 表示装置
JP2004146082A (ja) 2002-10-21 2004-05-20 Semiconductor Energy Lab Co Ltd 表示装置
EP1445987A1 (de) * 2003-02-04 2004-08-11 Goodrich Hella Aerospace Lighting Systems GmbH Vorrichtung zur Ansteuerung einer Leuchte mit Licht in mindestens zwei unterschiedlichen Farben aussendenden LED
US7521667B2 (en) 2003-06-23 2009-04-21 Advanced Optical Technologies, Llc Intelligent solid state lighting
US7145125B2 (en) 2003-06-23 2006-12-05 Advanced Optical Technologies, Llc Integrating chamber cone light using LED sources
US6995355B2 (en) 2003-06-23 2006-02-07 Advanced Optical Technologies, Llc Optical integrating chamber lighting using multiple color sources
US7755506B1 (en) 2003-09-03 2010-07-13 Legrand Home Systems, Inc. Automation and theater control system
CN100539780C (zh) * 2003-09-04 2009-09-09 皇家飞利浦电子股份有限公司 Led温度相关电源系统和方法
US7052152B2 (en) * 2003-10-03 2006-05-30 Philips Lumileds Lighting Company, Llc LCD backlight using two-dimensional array LEDs
US7573729B2 (en) * 2003-11-13 2009-08-11 Koninklijke Philips Electronics N.V. Resonant power LED control circuit with brightness and color control
DE102004002018A1 (de) * 2004-01-14 2005-08-04 Tridonicatco Gmbh & Co. Kg DC-versorgte Betriebsmittel-Module für Leuchtmittel
US10575376B2 (en) 2004-02-25 2020-02-25 Lynk Labs, Inc. AC light emitting diode and AC LED drive methods and apparatus
WO2011143510A1 (en) 2010-05-12 2011-11-17 Lynk Labs, Inc. Led lighting system
US10499465B2 (en) 2004-02-25 2019-12-03 Lynk Labs, Inc. High frequency multi-voltage and multi-brightness LED lighting devices and systems and methods of using same
CA2559718C (en) * 2004-03-15 2012-05-22 Color Kinetics Incorporated Power control methods and apparatus
US20050259424A1 (en) * 2004-05-18 2005-11-24 Zampini Thomas L Ii Collimating and controlling light produced by light emitting diodes
KR100637437B1 (ko) * 2004-06-03 2006-10-20 삼성에스디아이 주식회사 액정 표시 장치
US7088059B2 (en) * 2004-07-21 2006-08-08 Boca Flasher Modulated control circuit and method for current-limited dimming and color mixing of display and illumination systems
WO2006011108A1 (en) * 2004-07-23 2006-02-02 Koninklijke Philips Electronics N.V. System for temperature prioritised colour controlling of a solid-state lighting unit
US7324076B2 (en) * 2004-07-28 2008-01-29 Avago Technologies Ecbu Ip (Singapore) Pte. Ltd. Methods and apparatus for setting the color point of an LED light source
JP4529585B2 (ja) * 2004-08-18 2010-08-25 ソニー株式会社 表示装置及びその制御装置
US7025270B2 (en) * 2004-08-18 2006-04-11 Optoelectronics Co., Ltd. Automatic adjustment of illumination for reading barcodes and similar items
US7542257B2 (en) 2004-09-10 2009-06-02 Philips Solid-State Lighting Solutions, Inc. Power control methods and apparatus for variable loads
ES2445268T3 (es) * 2004-11-23 2014-02-28 Koninklijke Philips N.V. Aparato y método para controlar el color y la temperatura de color de la luz generada por una luminaria controlada digitalmente
EP1861876A1 (en) * 2005-03-24 2007-12-05 Tir Systems Ltd. Solid-state lighting device package
EP1872401B1 (en) * 2005-04-05 2018-09-19 Philips Lighting Holding B.V. Electronic device package with an integrated evaporator
US7391162B2 (en) * 2005-04-12 2008-06-24 Aqua Signal Aktiengesellschaft Luminaire with LED(s) and method for operating the luminaire
US8016470B2 (en) * 2007-10-05 2011-09-13 Dental Equipment, Llc LED-based dental exam lamp with variable chromaticity
TWI479466B (zh) 2005-05-25 2015-04-01 Koninkl Philips Electronics Nv 通量補償發光二極體驅動系統及方法
TWI270033B (en) * 2005-06-02 2007-01-01 Au Optronics Corp Liquid crystal display and light emitting diode drive circuit thereof
KR20070016873A (ko) 2005-08-05 2007-02-08 삼성전자주식회사 백라이트 유닛, 이를 포함하는 디스플레이장치 및 그제어방법
WO2007019663A1 (en) * 2005-08-17 2007-02-22 Tir Technology Lp Digitally controlled luminaire system
WO2007023434A2 (en) * 2005-08-22 2007-03-01 Koninklijke Philips Electronics N.V. Cured coating for use in optics or electronics.
US7778262B2 (en) * 2005-09-07 2010-08-17 Vantage Controls, Inc. Radio frequency multiple protocol bridge
TWI391600B (zh) * 2005-09-27 2013-04-01 Koninkl Philips Electronics Nv 發光二極體之照明燈具
US7765792B2 (en) 2005-10-21 2010-08-03 Honeywell International Inc. System for particulate matter sensor signal processing
JP5166278B2 (ja) * 2005-11-18 2013-03-21 クリー インコーポレイテッド 固体素子照明タイル
EP1949765B1 (en) * 2005-11-18 2017-07-12 Cree, Inc. Solid state lighting panels with variable voltage boost current sources
US7926300B2 (en) 2005-11-18 2011-04-19 Cree, Inc. Adaptive adjustment of light output of solid state lighting panels
US7872430B2 (en) * 2005-11-18 2011-01-18 Cree, Inc. Solid state lighting panels with variable voltage boost current sources
US8514210B2 (en) 2005-11-18 2013-08-20 Cree, Inc. Systems and methods for calibrating solid state lighting panels using combined light output measurements
TWI293543B (en) * 2005-12-07 2008-02-11 Ind Tech Res Inst Illumination brightness and color control system and method thereof
DE102005061204A1 (de) * 2005-12-21 2007-07-05 Perkinelmer Elcos Gmbh Beleuchtungsvorrichtung, Beleuchtungssteuergerät und Beleuchtungssystem
TWI338169B (en) * 2006-01-17 2011-03-01 Chimei Innolux Corp Led light source module and liquid crystal display thereof
EP1984667B1 (en) * 2006-02-10 2017-08-23 Philips Lighting North America Corporation Methods and apparatus for high power factor controlled power delivery using a single switching stage per load
US20090296401A1 (en) * 2006-03-20 2009-12-03 Omnilux, Inc. Devices and Methods for Resonant Illumination
KR100679410B1 (ko) * 2006-04-04 2007-02-06 엘지.필립스 엘시디 주식회사 발광 다이오드의 구동 장치
WO2007121574A1 (en) * 2006-04-21 2007-11-01 Tir Technology Lp Method and apparatus for light intensity control
US7766511B2 (en) * 2006-04-24 2010-08-03 Integrated Illumination Systems LED light fixture
WO2007125477A2 (en) 2006-05-03 2007-11-08 Koninklijke Philips Electronics N. V. Illumination copy and paste operation using light-wave identification
EP2033235B1 (en) 2006-05-26 2017-06-21 Cree, Inc. Solid state light emitting device
JP5237266B2 (ja) * 2006-05-31 2013-07-17 クリー インコーポレイテッド 色制御を持つ照明装置、および照明方法
WO2007141721A1 (en) * 2006-06-06 2007-12-13 Nxp B.V. Display device and method of providing illumination thereto
US7906794B2 (en) 2006-07-05 2011-03-15 Koninklijke Philips Electronics N.V. Light emitting device package with frame and optically transmissive element
TW200807357A (en) * 2006-07-17 2008-02-01 Delta Electronics Inc Backlight module and digital programmable control circuit thereof
US8872753B2 (en) * 2006-08-31 2014-10-28 Ati Technologies Ulc Adjusting brightness of a display image in a display having an adjustable intensity light source
EP2573924B1 (en) * 2006-09-13 2019-02-27 Cree, Inc. Circuit for supplying electrical power
KR20080029410A (ko) * 2006-09-29 2008-04-03 삼성전자주식회사 디스플레이 시스템 및 그 영상 처리 방법
CN101536179B (zh) * 2006-10-31 2011-05-25 皇家飞利浦电子股份有限公司 照明设备封装
US7729941B2 (en) 2006-11-17 2010-06-01 Integrated Illumination Systems, Inc. Apparatus and method of using lighting systems to enhance brand recognition
US8362838B2 (en) * 2007-01-19 2013-01-29 Cirrus Logic, Inc. Multi-stage amplifier with multiple sets of fixed and variable voltage rails
US8013538B2 (en) 2007-01-26 2011-09-06 Integrated Illumination Systems, Inc. TRI-light
JP2008187821A (ja) * 2007-01-30 2008-08-14 Matsushita Electric Works Ltd 絶縁型ａｃ−ｄｃコンバータおよびそれを用いるｌｅｄ用直流電源装置
DE102007004834A1 (de) * 2007-01-31 2008-08-14 Airbus Deutschland Gmbh Lichtgerät und Verfahren zur Realisierung einer gewünschten Farbmischung
US8456388B2 (en) * 2007-02-14 2013-06-04 Cree, Inc. Systems and methods for split processor control in a solid state lighting panel
US8018171B1 (en) 2007-03-12 2011-09-13 Cirrus Logic, Inc. Multi-function duty cycle modifier
US8076920B1 (en) 2007-03-12 2011-12-13 Cirrus Logic, Inc. Switching power converter and control system
US7804256B2 (en) 2007-03-12 2010-09-28 Cirrus Logic, Inc. Power control system for current regulated light sources
EP2143303B1 (en) 2007-04-02 2012-08-08 Koninklijke Philips Electronics N.V. Driving light emitting diodes
US8703492B2 (en) * 2007-04-06 2014-04-22 Qiagen Gaithersburg, Inc. Open platform hybrid manual-automated sample processing system
US8330393B2 (en) * 2007-04-20 2012-12-11 Analog Devices, Inc. System for time-sequential LED-string excitation
US7696913B2 (en) 2007-05-02 2010-04-13 Cirrus Logic, Inc. Signal processing system using delta-sigma modulation having an internal stabilizer path with direct output-to-integrator connection
US7554473B2 (en) * 2007-05-02 2009-06-30 Cirrus Logic, Inc. Control system using a nonlinear delta-sigma modulator with nonlinear process modeling
TWI587742B (zh) 2007-05-08 2017-06-11 克里公司 照明裝置及照明方法
US8049709B2 (en) 2007-05-08 2011-11-01 Cree, Inc. Systems and methods for controlling a solid state lighting panel
US7712917B2 (en) * 2007-05-21 2010-05-11 Cree, Inc. Solid state lighting panels with limited color gamut and methods of limiting color gamut in solid state lighting panels
US8350491B2 (en) * 2007-06-07 2013-01-08 The Sloan Company, Inc. Self adjusting power supply apparatus and method
US8102127B2 (en) 2007-06-24 2012-01-24 Cirrus Logic, Inc. Hybrid gas discharge lamp-LED lighting system
CA2636512C (en) * 2007-06-29 2011-08-30 Abl Ip Holding, Llc Led lighting assemblies for display cases
US20090008662A1 (en) * 2007-07-05 2009-01-08 Ian Ashdown Lighting device package
JP5024789B2 (ja) 2007-07-06 2012-09-12 Ｎｌｔテクノロジー株式会社 発光制御回路、発光制御方法、面照明装置及び該面照明装置を備えた液晶表示装置
US8604709B2 (en) 2007-07-31 2013-12-10 Lsi Industries, Inc. Methods and systems for controlling electrical power to DC loads
US7598683B1 (en) 2007-07-31 2009-10-06 Lsi Industries, Inc. Control of light intensity using pulses of a fixed duration and frequency
US8903577B2 (en) * 2009-10-30 2014-12-02 Lsi Industries, Inc. Traction system for electrically powered vehicles
US20090033612A1 (en) * 2007-07-31 2009-02-05 Roberts John K Correction of temperature induced color drift in solid state lighting displays
US8829820B2 (en) * 2007-08-10 2014-09-09 Cree, Inc. Systems and methods for protecting display components from adverse operating conditions
EP2181566A2 (en) * 2007-08-24 2010-05-05 Cirrus Logic, Inc. Multi-led control
US8742686B2 (en) * 2007-09-24 2014-06-03 Integrated Illumination Systems, Inc. Systems and methods for providing an OEM level networked lighting system
CA2795380A1 (en) * 2007-10-05 2009-04-05 Abl Ip Holding, Llc Lighting assemblies for vending machines
US11317495B2 (en) 2007-10-06 2022-04-26 Lynk Labs, Inc. LED circuits and assemblies
US11297705B2 (en) 2007-10-06 2022-04-05 Lynk Labs, Inc. Multi-voltage and multi-brightness LED lighting devices and methods of using same
US7701151B2 (en) * 2007-10-19 2010-04-20 American Sterilizer Company Lighting control system having temperature compensation and trim circuits
US7812551B2 (en) * 2007-10-19 2010-10-12 American Sterilizer Company Lighting control method having a light output ramping function
KR100949880B1 (ko) * 2007-10-31 2010-03-26 주식회사 하이닉스반도체 반도체 소자 및 그 제조 방법
US8866410B2 (en) 2007-11-28 2014-10-21 Cree, Inc. Solid state lighting devices and methods of manufacturing the same
US8148236B2 (en) * 2007-11-30 2012-04-03 Semiconductor Energy Laboratory Co., Ltd. Display device and method for manufacturing thereof
US7804697B2 (en) 2007-12-11 2010-09-28 Cirrus Logic, Inc. History-independent noise-immune modulated transformer-coupled gate control signaling method and apparatus
US8823630B2 (en) * 2007-12-18 2014-09-02 Cree, Inc. Systems and methods for providing color management control in a lighting panel
TW200930133A (en) * 2007-12-21 2009-07-01 Alliance Optotek Co Ltd Light emitting diode lamp and driving apparatus for the same
JP4956409B2 (ja) * 2007-12-25 2012-06-20 パナソニック株式会社 Ｌｅｄ照明器具
US8008898B2 (en) 2008-01-30 2011-08-30 Cirrus Logic, Inc. Switching regulator with boosted auxiliary winding supply
US8022683B2 (en) * 2008-01-30 2011-09-20 Cirrus Logic, Inc. Powering a power supply integrated circuit with sense current
US7755525B2 (en) * 2008-01-30 2010-07-13 Cirrus Logic, Inc. Delta sigma modulator with unavailable output values
US8576589B2 (en) * 2008-01-30 2013-11-05 Cirrus Logic, Inc. Switch state controller with a sense current generated operating voltage
US20100019686A1 (en) * 2008-02-13 2010-01-28 Gutierrez Jr Enrique Devices and methods for generating beam patterns with controllable intensity, color, or information content
US8493300B2 (en) * 2008-03-11 2013-07-23 Atmel Corporation Architecture and technique for inter-chip communication
US8581810B2 (en) * 2008-03-11 2013-11-12 Atmel Corporation Methods and circuits for self-calibrating controller
AU2009225444B2 (en) * 2008-03-20 2014-12-18 Signify Holding B.V. A conductive magnetic coupling system
US7759881B1 (en) 2008-03-31 2010-07-20 Cirrus Logic, Inc. LED lighting system with a multiple mode current control dimming strategy
CN102017381B (zh) 2008-04-25 2014-07-16 动力研究电子股份有限公司 功率变换器
US8255487B2 (en) * 2008-05-16 2012-08-28 Integrated Illumination Systems, Inc. Systems and methods for communicating in a lighting network
US8120277B2 (en) * 2008-06-04 2012-02-21 Boca Flasher, Inc. Hybrid-control current driver for dimming and color mixing in display and illumination systems
US8314572B2 (en) * 2008-06-24 2012-11-20 Atmel Corporation Apparatus and methodology for enhancing efficiency of a power distribution system having power factor correction capability by using a self-calibrating controller
US8008902B2 (en) 2008-06-25 2011-08-30 Cirrus Logic, Inc. Hysteretic buck converter having dynamic thresholds
TWI369502B (en) * 2008-07-17 2012-08-01 Au Optronics Corp Lamp detection driving system and related detection driving method
US8344707B2 (en) * 2008-07-25 2013-01-01 Cirrus Logic, Inc. Current sensing in a switching power converter
US8014176B2 (en) 2008-07-25 2011-09-06 Cirrus Logic, Inc. Resonant switching power converter with burst mode transition shaping
US8212491B2 (en) * 2008-07-25 2012-07-03 Cirrus Logic, Inc. Switching power converter control with triac-based leading edge dimmer compatibility
US8487546B2 (en) * 2008-08-29 2013-07-16 Cirrus Logic, Inc. LED lighting system with accurate current control
US8222872B1 (en) 2008-09-30 2012-07-17 Cirrus Logic, Inc. Switching power converter with selectable mode auxiliary power supply
US8179110B2 (en) * 2008-09-30 2012-05-15 Cirrus Logic Inc. Adjustable constant current source with continuous conduction mode (“CCM”) and discontinuous conduction mode (“DCM”) operation
WO2010059753A2 (en) * 2008-11-18 2010-05-27 Fringdale Uk Limited Led lighting controller
US8288954B2 (en) * 2008-12-07 2012-10-16 Cirrus Logic, Inc. Primary-side based control of secondary-side current for a transformer
US8299722B2 (en) 2008-12-12 2012-10-30 Cirrus Logic, Inc. Time division light output sensing and brightness adjustment for different spectra of light emitting diodes
US8362707B2 (en) * 2008-12-12 2013-01-29 Cirrus Logic, Inc. Light emitting diode based lighting system with time division ambient light feedback response
US7994863B2 (en) * 2008-12-31 2011-08-09 Cirrus Logic, Inc. Electronic system having common mode voltage range enhancement
MX338270B (es) 2009-01-21 2016-04-11 Alcon Res Ltd Endoiluminacion oftalmica utilizando luz generada por fibra.
US8585245B2 (en) 2009-04-23 2013-11-19 Integrated Illumination Systems, Inc. Systems and methods for sealing a lighting fixture
US8482223B2 (en) 2009-04-30 2013-07-09 Cirrus Logic, Inc. Calibration of lamps
TW201041289A (en) * 2009-05-12 2010-11-16 Wistron Corp Power supply method for LCD display device and power supply device
US8212493B2 (en) 2009-06-30 2012-07-03 Cirrus Logic, Inc. Low energy transfer mode for auxiliary power supply operation in a cascaded switching power converter
US8248145B2 (en) * 2009-06-30 2012-08-21 Cirrus Logic, Inc. Cascode configured switching using at least one low breakdown voltage internal, integrated circuit switch to control at least one high breakdown voltage external switch
US8963535B1 (en) 2009-06-30 2015-02-24 Cirrus Logic, Inc. Switch controlled current sensing using a hall effect sensor
US8198874B2 (en) 2009-06-30 2012-06-12 Cirrus Logic, Inc. Switching power converter with current sensing transformer auxiliary power supply
US8678616B2 (en) * 2009-07-21 2014-03-25 Abl Ip Holding Llc LED luminaire for display cases
US20110019410A1 (en) * 2009-07-21 2011-01-27 Abl Ip Holding Llc LED Luminaire for Display Cases
US20110025213A1 (en) * 2009-08-03 2011-02-03 Po-Ying Liao Wisdom tech led current balance assembly
BR112012006826A2 (pt) 2009-09-30 2019-09-24 Koninl Philips Electronics Nv circuito acionador de led dimerizável e método para controlar um circuito acionador de led dimerizável
US9178415B1 (en) 2009-10-15 2015-11-03 Cirrus Logic, Inc. Inductor over-current protection using a volt-second value representing an input voltage to a switching power converter
US8487591B1 (en) 2009-12-31 2013-07-16 Cirrus Logic, Inc. Power control system with power drop out immunity and uncompromised startup time
US8654483B2 (en) 2009-11-09 2014-02-18 Cirrus Logic, Inc. Power system having voltage-based monitoring for over current protection
CN102083253A (zh) * 2009-11-27 2011-06-01 富准精密工业(深圳)有限公司 灯具控制系统
US20110149592A1 (en) * 2009-12-22 2011-06-23 Artsyukhovich Alexander N Light collector for a white light led illuminator
US8936377B2 (en) 2010-03-31 2015-01-20 Alcon Research, Ltd. Apparatus for enhancing brightness of a wavelength converting element
US9173261B2 (en) 2010-07-30 2015-10-27 Wesley L. Mokry Secondary-side alternating energy transfer control with inverted reference and LED-derived power supply
US9510401B1 (en) 2010-08-24 2016-11-29 Cirrus Logic, Inc. Reduced standby power in an electronic power control system
EP2624664A4 (en) * 2010-09-27 2017-05-03 Mitsubishi Chemical Corporation Led illumination appliance and led illumination system
US8384294B2 (en) 2010-10-05 2013-02-26 Electronic Theatre Controls, Inc. System and method for color creation and matching
EP2741586A1 (en) 2010-11-04 2014-06-11 Cirrus Logic, Inc. Duty factor probing of a triac-based dimmer
US8488930B2 (en) 2010-12-09 2013-07-16 Alcon Research, Ltd. Wavelength converting illumination probe
US8593074B2 (en) 2011-01-12 2013-11-26 Electronic Theater Controls, Inc. Systems and methods for controlling an output of a light fixture
US8723450B2 (en) 2011-01-12 2014-05-13 Electronics Theatre Controls, Inc. System and method for controlling the spectral content of an output of a light fixture
US9066381B2 (en) 2011-03-16 2015-06-23 Integrated Illumination Systems, Inc. System and method for low level dimming
US8823289B2 (en) 2011-03-24 2014-09-02 Cirrus Logic, Inc. Color coordination of electronic light sources with dimming and temperature responsiveness
US8912734B2 (en) 2011-03-24 2014-12-16 Cirrus Logic, Inc. Color mixing of electronic light sources with correlation between phase-cut dimmer angle and predetermined black body radiation function
US9967940B2 (en) 2011-05-05 2018-05-08 Integrated Illumination Systems, Inc. Systems and methods for active thermal management
EP2715924A1 (en) 2011-06-03 2014-04-09 Cirrus Logic, Inc. Control data determination from primary-side sensing of a secondary-side voltage in a switching power converter
US8710770B2 (en) 2011-07-26 2014-04-29 Hunter Industries, Inc. Systems and methods for providing power and data to lighting devices
US9609720B2 (en) 2011-07-26 2017-03-28 Hunter Industries, Inc. Systems and methods for providing power and data to lighting devices
US20150237700A1 (en) 2011-07-26 2015-08-20 Hunter Industries, Inc. Systems and methods to control color and brightness of lighting devices
US11917740B2 (en) 2011-07-26 2024-02-27 Hunter Industries, Inc. Systems and methods for providing power and data to devices
US10874003B2 (en) 2011-07-26 2020-12-22 Hunter Industries, Inc. Systems and methods for providing power and data to devices
US9521725B2 (en) 2011-07-26 2016-12-13 Hunter Industries, Inc. Systems and methods for providing power and data to lighting devices
US20140239809A1 (en) 2011-08-18 2014-08-28 Lynk Labs, Inc. Devices and systems having ac led circuits and methods of driving the same
JP6010290B2 (ja) * 2011-09-29 2016-10-19 パイオニア株式会社 照明システム
WO2013082609A1 (en) 2011-12-02 2013-06-06 Lynk Labs, Inc. Color temperature controlled and low thd led lighting devices and systems and methods of driving the same
JP6175229B2 (ja) * 2011-12-09 2017-08-02 株式会社半導体エネルギー研究所 発光装置及び発光装置の駆動方法
WO2013090704A1 (en) * 2011-12-15 2013-06-20 Terralux, Inc. Systems and methods for data communication from an led device to the driver system, by load modulation
US9084308B2 (en) * 2012-05-07 2015-07-14 Starfield Controls, Inc. Self calibrating, adaptive setpoint daylighting
EP2859645B1 (en) 2012-06-07 2017-11-08 Philips Lighting Holding B.V. A system and method for emergency lighting
DE102012209779A1 (de) * 2012-06-12 2013-12-12 Osram Gmbh Ansteuerung von mehreren halbleiterleuchtelementen
US9204503B1 (en) 2012-07-03 2015-12-01 Philips International, B.V. Systems and methods for dimming multiple lighting devices by alternating transfer from a magnetic storage element
US8894437B2 (en) 2012-07-19 2014-11-25 Integrated Illumination Systems, Inc. Systems and methods for connector enabling vertical removal
US9520794B2 (en) 2012-07-25 2016-12-13 Philips Lighting Holding B.V Acceleration of output energy provision for a load during start-up of a switching power converter
US9379578B2 (en) 2012-11-19 2016-06-28 Integrated Illumination Systems, Inc. Systems and methods for multi-state power management
US10602576B2 (en) 2012-12-28 2020-03-24 Tridonic Gmbh & Co Kg Operation of an illuminant by means of a resonant converter
US9420665B2 (en) 2012-12-28 2016-08-16 Integration Illumination Systems, Inc. Systems and methods for continuous adjustment of reference signal to control chip
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
US9496844B1 (en) 2013-01-25 2016-11-15 Koninklijke Philips N.V. Variable bandwidth filter for dimmer phase angle measurements
EP2965592A1 (en) 2013-03-07 2016-01-13 Koninklijke Philips N.V. Utilizing secondary-side conduction time parameters of a switching power converter to provide energy to a load
US9282598B2 (en) 2013-03-15 2016-03-08 Koninklijke Philips N.V. System and method for learning dimmer characteristics
US9185767B2 (en) 2013-04-19 2015-11-10 Cirrus Logic, Inc. Self-oscillating resonant converter-based light emitting diode (LED) driver
WO2014186776A1 (en) 2013-05-17 2014-11-20 Cirrus Logic, Inc. Charge pump-based circuitry for bjt power supply
US9253833B2 (en) 2013-05-17 2016-02-02 Cirrus Logic, Inc. Single pin control of bipolar junction transistor (BJT)-based power stage
WO2015017317A2 (en) 2013-07-29 2015-02-05 Cirrus Logic, Inc. Two terminal drive of bipolar junction transistor (bjt) for switch-mode operation of a light emitting diode (led)-based bulb
WO2015017315A1 (en) 2013-07-29 2015-02-05 Cirrus Logic, Inc. Compensating for a reverse recovery time period of a bipolar junction transistor (bjt) in switch-mode operation of a light-emitting diode (led)-based bulb
US9860945B2 (en) 2014-03-05 2018-01-02 Philips Lighting Holding B.V. Digitally-controlled switch-mode start-up circuit for LED-based lights
US9621062B2 (en) 2014-03-07 2017-04-11 Philips Lighting Holding B.V. Dimmer output emulation with non-zero glue voltage
US9215772B2 (en) 2014-04-17 2015-12-15 Philips International B.V. Systems and methods for minimizing power dissipation in a low-power lamp coupled to a trailing-edge dimmer
US9214862B2 (en) 2014-04-17 2015-12-15 Philips International, B.V. Systems and methods for valley switching in a switching power converter
US9866990B2 (en) 2014-05-28 2018-01-09 Technical Consumer Products, Inc. System and method for simultaneous wireless control of multiple peripheral devices
US9326332B1 (en) 2014-10-08 2016-04-26 Koninklijke Philips N.V. Ripple reduction in light emitting diode (LED)-based light bulb through increased ripple on an energy storage capacitor
US9325236B1 (en) 2014-11-12 2016-04-26 Koninklijke Philips N.V. Controlling power factor in a switching power converter operating in discontinuous conduction mode
US9504118B2 (en) 2015-02-17 2016-11-22 Cirrus Logic, Inc. Resistance measurement of a resistor in a bipolar junction transistor (BJT)-based power stage
US9603206B2 (en) 2015-02-27 2017-03-21 Cirrus Logic, Inc. Detection and control mechanism for tail current in a bipolar junction transistor (BJT)-based power stage
US9609701B2 (en) 2015-02-27 2017-03-28 Cirrus Logic, Inc. Switch-mode drive sensing of reverse recovery in bipolar junction transistor (BJT)-based power converters
US10918030B2 (en) 2015-05-26 2021-02-16 Hunter Industries, Inc. Decoder systems and methods for irrigation control
US10228711B2 (en) 2015-05-26 2019-03-12 Hunter Industries, Inc. Decoder systems and methods for irrigation control
US10060599B2 (en) 2015-05-29 2018-08-28 Integrated Illumination Systems, Inc. Systems, methods and apparatus for programmable light fixtures
US10030844B2 (en) 2015-05-29 2018-07-24 Integrated Illumination Systems, Inc. Systems, methods and apparatus for illumination using asymmetrical optics
US9900957B2 (en) 2015-06-11 2018-02-20 Cree, Inc. Lighting device including solid state emitters with adjustable control
WO2017106598A1 (en) * 2015-12-16 2017-06-22 Black Tank, Llc Lighting system and method for pwm adjustable current control
US10465869B2 (en) 2017-01-30 2019-11-05 Ideal Industries Lighting Llc Skylight fixture
US10451229B2 (en) 2017-01-30 2019-10-22 Ideal Industries Lighting Llc Skylight fixture
US11079077B2 (en) 2017-08-31 2021-08-03 Lynk Labs, Inc. LED lighting system and installation methods
US10668179B2 (en) * 2018-03-21 2020-06-02 The Boeing Company Systems and methods for powering a load
US10801714B1 (en) 2019-10-03 2020-10-13 CarJamz, Inc. Lighting device
US11350499B2 (en) * 2020-03-10 2022-05-31 Alcon Inc. Systems and methods for controlled illumination of light-emitting diodes

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4810937A (en) * 1986-04-28 1989-03-07 Karel Havel Multicolor optical device
US4859832A (en) * 1986-09-08 1989-08-22 Nikon Corporation Light radiation apparatus
JP2984306B2 (ja) * 1990-03-15 1999-11-29 キヤノン株式会社 焦点調節装置を有する画像読取装置
CA2159842A1 (en) * 1994-12-05 1996-06-06 Joe A. Ortiz Diode drive current source
JPH08329180A (ja) * 1995-06-05 1996-12-13 Asahi Optical Co Ltd データシンボル読み取り装置
JP3420444B2 (ja) * 1996-10-17 2003-06-23 キヤノン株式会社 画像形成装置、画像形成方法、及びその記憶媒体
US5783909A (en) * 1997-01-10 1998-07-21 Relume Corporation Maintaining LED luminous intensity
US6127783A (en) * 1998-12-18 2000-10-03 Philips Electronics North America Corp. LED luminaire with electronically adjusted color balance

Cited By (37)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100403358C (zh) * 2004-11-23 2008-07-16 普立尔科技股份有限公司 发光二极管控制装置及其方法
CN100449372C (zh) * 2005-01-11 2009-01-07 友达光电股份有限公司 混光控制单元
CN100435004C (zh) * 2005-05-23 2008-11-19 三菱电机株式会社 面状光源装置以及使用其的显示装置
CN101346082B (zh) * 2005-12-23 2012-03-21 皇家飞利浦电子股份有限公司 用于商店的展示系统的颜色匹配
US9000680B2 (en) 2007-03-12 2015-04-07 Cirrus Logic, Inc. Lighting system with lighting dimmer output mapping
CN103209526B (zh) * 2007-03-12 2015-09-02 塞瑞斯逻辑公司 发光二极管照明系统及控制发光二极管照明系统的方法
US10356857B2 (en) 2007-03-12 2019-07-16 Signify Holding B.V. Lighting system with power factor correction control data determined from a phase modulated signal
CN103209526A (zh) * 2007-03-12 2013-07-17 塞瑞斯逻辑公司 发光二极管照明系统及控制发光二极管照明系统的方法
CN105517255B (zh) * 2007-05-22 2018-05-15 飞利浦灯具控股公司 远程照明控制
CN102217418A (zh) * 2008-11-18 2011-10-12 通用电气公司 包括具有隔离的多通道输出的单个反相器电路的led驱动器
CN102217418B (zh) * 2008-11-18 2013-07-10 通用电气公司 包括具有隔离的多通道输出的单个反相器电路的led驱动器
US9155174B2 (en) 2009-09-30 2015-10-06 Cirrus Logic, Inc. Phase control dimming compatible lighting systems
CN102668701A (zh) * 2009-12-29 2012-09-12 爱特梅尔公司 用于具有功率因数校正能力的智能发光二极管驱动器的方法及装置
US8810141B2 (en) 2010-04-09 2014-08-19 Mitsubishi Chemical Corporation Illumination light control apparatus and LED illumination system
CN102783253B (zh) * 2010-04-09 2014-08-20 三菱化学株式会社 调光装置和led照明系统
CN102783253A (zh) * 2010-04-09 2012-11-14 三菱化学株式会社 调光装置和led照明系统
US9660547B1 (en) 2010-07-30 2017-05-23 Philips Lighting Holding B.V. Dimmer compatibility with reactive loads
US9240725B2 (en) 2010-07-30 2016-01-19 Cirrus Logic, Inc. Coordinated dimmer compatibility functions
US9307601B2 (en) 2010-08-17 2016-04-05 Koninklijke Philips N.V. Input voltage sensing for a switching power converter and a triac-based dimmer
US9532415B2 (en) 2010-08-24 2016-12-27 Philips Lighting Hiolding B.V. Multi-mode dimmer interfacing including attach state control
US9497850B2 (en) 2010-11-04 2016-11-15 Koninklijke Philips N.V. Controlled power dissipation in a lighting system
US9497851B2 (en) 2010-11-04 2016-11-15 Koninklijke Philips N.V. Thermal management in a lighting system using multiple, controlled power dissipation circuits
US9084316B2 (en) 2010-11-04 2015-07-14 Cirrus Logic, Inc. Controlled power dissipation in a switch path in a lighting system
US9491845B2 (en) 2010-11-04 2016-11-08 Koninklijke Philips N.V. Controlled power dissipation in a link path in a lighting system
CN103222341A (zh) * 2010-11-12 2013-07-24 东芝照明技术株式会社 Led点灯装置以及led照明装置
US9207265B1 (en) 2010-11-12 2015-12-08 Cirrus Logic, Inc. Dimmer detection
CN104363682A (zh) * 2010-11-12 2015-02-18 东芝照明技术株式会社 Led点灯装置以及led照明装置
CN104363682B (zh) * 2010-11-12 2017-04-12 东芝照明技术株式会社 Led点灯装置以及led照明装置
CN103222341B (zh) * 2010-11-12 2014-12-10 东芝照明技术株式会社 Led点灯装置以及led照明装置
US9155163B2 (en) 2010-11-16 2015-10-06 Cirrus Logic, Inc. Trailing edge dimmer compatibility with dimmer high resistance prediction
US9025347B2 (en) 2010-12-16 2015-05-05 Cirrus Logic, Inc. Switching parameter based discontinuous mode-critical conduction mode transition
CN103890685A (zh) * 2011-10-25 2014-06-25 惠普发展公司，有限责任合伙企业 驱动器托架光源控制
US9071144B2 (en) 2011-12-14 2015-06-30 Cirrus Logic, Inc. Adaptive current control timing and responsive current control for interfacing with a dimmer
US9167662B2 (en) 2012-02-29 2015-10-20 Cirrus Logic, Inc. Mixed load current compensation for LED lighting
CN103619234A (zh) * 2012-04-04 2014-03-05 奥林巴斯医疗株式会社 光源装置
US9184661B2 (en) 2012-08-27 2015-11-10 Cirrus Logic, Inc. Power conversion with controlled capacitance charging including attach state control
US10187934B2 (en) 2013-03-14 2019-01-22 Philips Lighting Holding B.V. Controlled electronic system power dissipation via an auxiliary-power dissipation circuit

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JP4117196B2 (ja) 2008-07-16
DE60221654D1 (de) 2007-09-20
DE60221654T2 (de) 2008-05-21
US6510995B2 (en) 2003-01-28
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EP1374642B1 (en) 2007-08-08
CN100367827C (zh) 2008-02-06

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