ZA83937B - A bias control circuit for light-emitting diode having temperature compensation - Google Patents

A bias control circuit for light-emitting diode having temperature compensation

Info

Publication number
ZA83937B
ZA83937B ZA83937A ZA83937A ZA83937B ZA 83937 B ZA83937 B ZA 83937B ZA 83937 A ZA83937 A ZA 83937A ZA 83937 A ZA83937 A ZA 83937A ZA 83937 B ZA83937 B ZA 83937B
Authority
ZA
South Africa
Prior art keywords
light
emitting diode
control circuit
bias control
series
Prior art date
Application number
ZA83937A
Other languages
English (en)
Inventor
Wit Benjamino De
Karel Hendrik Wesseling
Original Assignee
Tno
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 Tno filed Critical Tno
Publication of ZA83937B publication Critical patent/ZA83937B/xx

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
    • A61B5/024—Detecting, measuring or recording pulse rate or heart rate
    • A61B5/02416—Detecting, measuring or recording pulse rate or heart rate using photoplethysmograph signals, e.g. generated by infrared radiation
    • 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
    • H05B45/18—Controlling the intensity of the light using temperature feedback
    • 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
    • H05B45/395—Linear regulators
    • 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
    • H05B45/12—Controlling the intensity of the light using optical feedback
    • 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

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Cardiology (AREA)
  • Medical Informatics (AREA)
  • Surgery (AREA)
  • Biophysics (AREA)
  • Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Physiology (AREA)
  • Molecular Biology (AREA)
  • Physics & Mathematics (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Led Devices (AREA)
  • Electronic Switches (AREA)
  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
  • Optical Communication System (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)
  • Radio Transmission System (AREA)
ZA83937A 1982-02-11 1983-02-11 A bias control circuit for light-emitting diode having temperature compensation ZA83937B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL8200517A NL8200517A (nl) 1982-02-11 1982-02-11 Instelschakeling voor licht-emitterende diode met temperatuurcompensatie.

Publications (1)

Publication Number Publication Date
ZA83937B true ZA83937B (en) 1983-11-30

Family

ID=19839235

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA83937A ZA83937B (en) 1982-02-11 1983-02-11 A bias control circuit for light-emitting diode having temperature compensation

Country Status (11)

Country Link
US (1) US4529949A (de)
EP (1) EP0086528B1 (de)
JP (1) JPS58151075A (de)
AT (1) ATE27527T1 (de)
AU (1) AU553384B2 (de)
CA (1) CA1194937A (de)
DE (1) DE3371850D1 (de)
DK (1) DK159238C (de)
ES (1) ES519707A0 (de)
NL (1) NL8200517A (de)
ZA (1) ZA83937B (de)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3431996A1 (de) * 1984-08-31 1986-03-13 Fa. Carl Zeiss, 7920 Heidenheim Stromversorgung fuer strahlungsquellen von frequenz-analogen optischen sensoren
US6188268B1 (en) * 1998-10-30 2001-02-13 Sony Corporation Of Japan Low side current sink circuit having improved output impedance to reduce effects of leakage current
US5013971A (en) * 1987-05-26 1991-05-07 Hughes Aircraft Company Temperature stabilization of laser diodes and light emitting diodes
JP2975160B2 (ja) * 1991-05-27 1999-11-10 三菱化学株式会社 発光スペクトル制御システム
US6107861A (en) * 1998-01-27 2000-08-22 Bristol Babcock, Inc. Circuit for self compensation of silicon strain gauge pressure transmitters
WO2000018290A1 (en) * 1998-09-29 2000-04-06 Mallinckrodt Inc. Oximeter sensor with encoded temperature characteristic
US6448550B1 (en) * 2000-04-27 2002-09-10 Agilent Technologies, Inc. Method and apparatus for measuring spectral content of LED light source and control thereof
US7228077B2 (en) * 2000-05-12 2007-06-05 Forster Energy Llc Channel gain control for an optical communications system utilizing frequency division multiplexing
WO2002049721A1 (en) * 2000-12-21 2002-06-27 Diverse Technologies And Systems Limited Apparatus and method for alleviation of symptoms by application of tinted light
US6753187B2 (en) 2001-05-09 2004-06-22 Lifescan, Inc. Optical component based temperature measurement in analyte detection devices
JP2004330819A (ja) * 2003-05-01 2004-11-25 Koito Mfg Co Ltd 車両用灯具
EP1743384B1 (de) * 2004-03-30 2015-08-05 Phoseon Technology, Inc. Led-gruppe mit led-detektoren auf gruppenbasis
DE602005009317D1 (de) * 2005-03-08 2008-10-09 Sony Ericsson Mobile Comm Ab Schaltung und Verfahren zum Überwachen der Temperatur einer Leuchtdiode
WO2006094590A1 (en) * 2005-03-08 2006-09-14 Sony Ericsson Mobile Communications Ab Electric circuit and method for monitoring a temperature of a light emitting diode
US7498751B2 (en) * 2006-06-15 2009-03-03 Himax Technologies Limited High efficiency and low cost cold cathode fluorescent lamp driving apparatus for LCD backlight
TWI459858B (zh) 2008-06-24 2014-11-01 Eldolab Holding Bv 照明系統及發光二極體組件之控制單元
US20110115400A1 (en) * 2009-11-17 2011-05-19 Harrison Daniel J Led dimmer control
US8358085B2 (en) * 2009-01-13 2013-01-22 Terralux, Inc. Method and device for remote sensing and control of LED lights
US9326346B2 (en) 2009-01-13 2016-04-26 Terralux, Inc. Method and device for remote sensing and control of LED lights
CN102724792B (zh) * 2009-05-04 2015-05-20 艾杜雷控股有限公司 用于led组件的控制单元以及照明系统
EP2617266A1 (de) 2010-09-16 2013-07-24 Terralux, Inc. Kommunikation mit beleuchtungseinheiten über eine stromschiene
US9596738B2 (en) 2010-09-16 2017-03-14 Terralux, Inc. Communication with lighting units over a power bus
US8896231B2 (en) 2011-12-16 2014-11-25 Terralux, Inc. Systems and methods of applying bleed circuits in LED lamps
US9265119B2 (en) 2013-06-17 2016-02-16 Terralux, Inc. Systems and methods for providing thermal fold-back to LED lights
US10078020B2 (en) 2013-08-23 2018-09-18 Whirlpool Corporation Methods and apparatus to determine home appliance cabinet temperature using a light emitting diode (LED)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3686517A (en) * 1971-09-02 1972-08-22 Gen Electric Temperature compensation means for electronic circuit
US3755679A (en) * 1972-07-10 1973-08-28 Monsanto Co Constant photon energy source
US4081670A (en) * 1976-11-08 1978-03-28 Bell Telephone Laboratories, Incorporated Automatic bias control circuit for injection lasers
NL191373C (nl) * 1980-07-15 1995-06-16 Tno Inrichting voor het sturen van de brandstoftoevoer aan een verbrandingsmotor.

Also Published As

Publication number Publication date
US4529949A (en) 1985-07-16
EP0086528A1 (de) 1983-08-24
DK57983D0 (da) 1983-02-10
DK57983A (da) 1983-08-12
AU1129883A (en) 1983-08-18
CA1194937A (en) 1985-10-08
DK159238C (da) 1991-03-04
DK159238B (da) 1990-09-17
DE3371850D1 (en) 1987-07-02
JPS58151075A (ja) 1983-09-08
NL8200517A (nl) 1983-09-01
AU553384B2 (en) 1986-07-10
ATE27527T1 (de) 1987-06-15
EP0086528B1 (de) 1987-05-27
JPH0434836B2 (de) 1992-06-09
ES8401254A1 (es) 1983-12-01
ES519707A0 (es) 1983-12-01

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