DE602004015617D1 - Kombinierter exponentieller und linearer RGB LED-Stromsenkender Digital-Analaog-Wandler - Google Patents

Kombinierter exponentieller und linearer RGB LED-Stromsenkender Digital-Analaog-Wandler

Info

Publication number
DE602004015617D1
DE602004015617D1 DE602004015617T DE602004015617T DE602004015617D1 DE 602004015617 D1 DE602004015617 D1 DE 602004015617D1 DE 602004015617 T DE602004015617 T DE 602004015617T DE 602004015617 T DE602004015617 T DE 602004015617T DE 602004015617 D1 DE602004015617 D1 DE 602004015617D1
Authority
DE
Germany
Prior art keywords
exponential
linear
color
idac
leds
Prior art date
Legal status (The legal status 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 status listed.)
Active
Application number
DE602004015617T
Other languages
English (en)
Inventor
Andreas Adler
Carlo Peschke
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dialog Semiconductor GmbH
Original Assignee
Dialog Semiconductor GmbH
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 Dialog Semiconductor GmbH filed Critical Dialog Semiconductor GmbH
Publication of DE602004015617D1 publication Critical patent/DE602004015617D1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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]
    • H05B45/20—Controlling the colour of the light
DE602004015617T 2004-11-23 2004-11-23 Kombinierter exponentieller und linearer RGB LED-Stromsenkender Digital-Analaog-Wandler Active DE602004015617D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP04392045A EP1659830B1 (de) 2004-11-23 2004-11-23 Kombinierter exponentieller und linearer RGB LED-Stromsenkender Digital-Analaog-Wandler

Publications (1)

Publication Number Publication Date
DE602004015617D1 true DE602004015617D1 (de) 2008-09-18

Family

ID=34931998

Family Applications (1)

Application Number Title Priority Date Filing Date
DE602004015617T Active DE602004015617D1 (de) 2004-11-23 2004-11-23 Kombinierter exponentieller und linearer RGB LED-Stromsenkender Digital-Analaog-Wandler

Country Status (4)

Country Link
US (2) US7038402B1 (de)
EP (1) EP1659830B1 (de)
AT (1) ATE404036T1 (de)
DE (1) DE602004015617D1 (de)

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US7384150B2 (en) * 2005-05-27 2008-06-10 3M Innovative Properties Company Light emitting diode (LED) illumination control system and method
US7830560B2 (en) * 2007-01-31 2010-11-09 Hewlett-Packard Development Company, L.P. System and method for adaptive digital ramp current control
EP2235434A4 (de) * 2007-12-24 2011-04-20 Moore Benjamin & Co System zur darstellung von farben mit einer integrierenden lichtkapsel
US8299729B2 (en) * 2009-09-22 2012-10-30 Infineon Technologies Austria Ag System and method for non-linear dimming of a light source
US8937930B2 (en) 2009-11-19 2015-01-20 Qualcomm, Incorporated Virtual peripheral hub device and system
KR20120127590A (ko) * 2010-01-05 2012-11-22 쓰리엠 이노베이티브 프로퍼티즈 컴파니 컬러 순차 이미지 디스플레이용 광원의 제어
US10108049B2 (en) 2010-06-04 2018-10-23 Apple Inc. Gray scale inversion reduction or prevention in liquid crystal displays
US9666137B2 (en) 2010-10-25 2017-05-30 Apple Inc. OLED driving technique
US20120182939A1 (en) 2011-01-14 2012-07-19 Qualcomm Incorporated Telehealth wireless communication hub and service platform system
JP2015510138A (ja) * 2011-12-05 2015-04-02 クゥアルコム・インコーポレイテッドＱｕａｌｃｏｍｍ Ｉｎｃｏｒｐｏｒａｔｅｄ テレヘルスワイヤレス通信ハブデバイスおよびサービスプラットフォームシステム
EP2894944A1 (de) * 2014-01-14 2015-07-15 Dialog Semiconductor GmbH Verfahren zur Verbesserung der Genauigkeit eines Exponentialstrom-Digital-Analog-Wandlers (IDAC) mithilfe binär gewichteter MSB
EP2894943B1 (de) 2014-01-14 2020-02-26 Dialog Semiconductor (UK) Limited Vorrichtung zur Verbesserung der Genauigkeit eines Exponentialstrom-Digital-Analog-Wandlers (IDAC) mithilfe binär gewichteter MSB
DE102015205808A1 (de) * 2015-03-31 2016-10-06 Osram Gmbh Schaltungsanordnung zum Betreiben zumindest einer ersten und genau einer zweiten Kaskade von LEDs
CN111065187B (zh) 2018-10-17 2022-04-26 戴洛格半导体（英国）有限公司 电流调节器
CN110996432B (zh) * 2019-12-31 2021-10-08 深圳市创荣发电子有限公司 一种调光方法、可读存储介质及led灯
CN113905476B (zh) * 2021-10-28 2024-02-02 上海艾为电子技术股份有限公司 指数调光方法、映射电路、调光电路及电子设备

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US6596977B2 (en) 2001-10-05 2003-07-22 Koninklijke Philips Electronics N.V. Average light sensing for PWM control of RGB LED based white light luminaries
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US6683419B2 (en) * 2002-06-24 2004-01-27 Dialight Corporation Electrical control for an LED light source, including dimming control
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Also Published As

Publication number Publication date
US20060175990A1 (en) 2006-08-10
US7551153B2 (en) 2009-06-23
EP1659830B1 (de) 2008-08-06
US20060108952A1 (en) 2006-05-25
ATE404036T1 (de) 2008-08-15
EP1659830A1 (de) 2006-05-24
US7038402B1 (en) 2006-05-02

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