ATE404036T1 - 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
ATE404036T1
ATE404036T1 AT04392045T AT04392045T ATE404036T1 AT E404036 T1 ATE404036 T1 AT E404036T1 AT 04392045 T AT04392045 T AT 04392045T AT 04392045 T AT04392045 T AT 04392045T AT E404036 T1 ATE404036 T1 AT E404036T1
Authority
AT
Austria
Prior art keywords
exponential
linear
color
idac
leds
Prior art date
Application number
AT04392045T
Other languages
English (en)
Inventor
Andreas Adler
Carlo Peschke
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
Application granted granted Critical
Publication of ATE404036T1 publication Critical patent/ATE404036T1/de

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

Landscapes

  • Circuit Arrangement For Electric Light Sources In General (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Led Devices (AREA)
AT04392045T 2004-11-23 2004-11-23 Kombinierter exponentieller und linearer rgb led- stromsenkender digital-analaog-wandler ATE404036T1 (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
ATE404036T1 true ATE404036T1 (de) 2008-08-15

Family

ID=34931998

Family Applications (1)

Application Number Title Priority Date Filing Date
AT04392045T ATE404036T1 (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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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
WO2011084837A1 (en) * 2010-01-05 2011-07-14 3M Innovative Properties Company Controlling light sources for colour sequential image displaying
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
CN104272868A (zh) * 2011-12-05 2015-01-07 高通股份有限公司 远程医疗无线通信集线器设备和服务平台系统
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
US12388455B2 (en) 2023-06-21 2025-08-12 Apple Inc. Piecewise linear digital-to-analog converter circuit
US12437707B2 (en) 2023-09-27 2025-10-07 Creeled, Inc. Pseudo-exponential encoding for light-emitting devices and related methods

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Also Published As

Publication number Publication date
US20060175990A1 (en) 2006-08-10
EP1659830A1 (de) 2006-05-24
DE602004015617D1 (de) 2008-09-18
EP1659830B1 (de) 2008-08-06
US20060108952A1 (en) 2006-05-25
US7551153B2 (en) 2009-06-23
US7038402B1 (en) 2006-05-02

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