EP2157834A3 - Switching assembly for operating at least one semiconductor light source - Google Patents

Switching assembly for operating at least one semiconductor light source Download PDF

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Publication number
EP2157834A3
EP2157834A3 EP09168098.3A EP09168098A EP2157834A3 EP 2157834 A3 EP2157834 A3 EP 2157834A3 EP 09168098 A EP09168098 A EP 09168098A EP 2157834 A3 EP2157834 A3 EP 2157834A3
Authority
EP
European Patent Office
Prior art keywords
light source
semiconductor light
operating
switching assembly
diode
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.)
Withdrawn
Application number
EP09168098.3A
Other languages
German (de)
French (fr)
Other versions
EP2157834A2 (en
Inventor
Bernhard Siessegger
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.)
Osram GmbH
Original Assignee
Osram 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 Osram GmbH filed Critical Osram GmbH
Publication of EP2157834A2 publication Critical patent/EP2157834A2/en
Publication of EP2157834A3 publication Critical patent/EP2157834A3/en
Withdrawn legal-status Critical Current

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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]
    • H05B45/30—Driver circuits
    • H05B45/37—Converter circuits
    • 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]
    • 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
    • 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
    • H05B45/48—Details of LED load circuits with an active control inside an LED matrix having LEDs organised in strings and incorporating parallel shunting devices

Landscapes

  • Led Devices (AREA)
  • Dc-Dc Converters (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)
  • Electronic Switches (AREA)

Abstract

Die Erfindung betrifft eine Schaltungsanordnung zum Betrieb mindestens einer Halbleiterlichtquelle mit einem Eingang zum Eingeben einer Eingangsspannung, einem Ausgang zum Ausgeben einer Ausgangsspannung an die Halbleiterlichtquelle, wobei der Hauptstrompfad der Schaltungsanordnung zwischen den beiden Eingangsanschlüssen liegt, und aus einer Serienschaltung eines Schalters, einer Induktivität und einer Antiparallelschaltung einer ersten Diode oder Leuchtdiode und der mindestens einen Halbleiterlichtquelle besteht, wobei parallel zu der mindestens einen Halbleiterlichtquelle ein erster Speicherkondensator angeordnet ist, und in Serie zu dieser Parallelschaltung eine zweite Diode angeordnet ist.

Figure imgaf001
The invention relates to a circuit arrangement for operating at least one semiconductor light source having an input for inputting an input voltage, an output for outputting an output voltage to the semiconductor light source, the main current path of the circuit arrangement lying between the two input terminals, and a series circuit of a switch, an inductance and a Antiparallelschaltung a first diode or light emitting diode and the at least one semiconductor light source, wherein parallel to the at least one semiconductor light source, a first storage capacitor is arranged, and in series with this parallel circuit, a second diode is arranged.
Figure imgaf001
EP09168098.3A 2008-08-22 2009-08-18 Switching assembly for operating at least one semiconductor light source Withdrawn EP2157834A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102008039351A DE102008039351B3 (en) 2008-08-22 2008-08-22 Circuit arrangement for operating at least one semiconductor light source

Publications (2)

Publication Number Publication Date
EP2157834A2 EP2157834A2 (en) 2010-02-24
EP2157834A3 true EP2157834A3 (en) 2014-05-14

Family

ID=41395828

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09168098.3A Withdrawn EP2157834A3 (en) 2008-08-22 2009-08-18 Switching assembly for operating at least one semiconductor light source

Country Status (6)

Country Link
US (1) US8188678B2 (en)
EP (1) EP2157834A3 (en)
JP (1) JP2010050460A (en)
KR (1) KR101719474B1 (en)
CN (1) CN101657056A (en)
DE (1) DE102008039351B3 (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8653737B2 (en) * 2009-04-14 2014-02-18 Phoseon Technology, Inc. Controller for semiconductor lighting device
US11244745B2 (en) 2010-01-22 2022-02-08 Deka Products Limited Partnership Computer-implemented method, system, and apparatus for electronic patient care
US10453157B2 (en) 2010-01-22 2019-10-22 Deka Products Limited Partnership System, method, and apparatus for electronic patient care
US8471483B2 (en) * 2011-04-20 2013-06-25 Chicony Power Technology Co., Ltd. Multi-channel LED driving system
KR102132666B1 (en) * 2012-10-26 2020-07-13 서울반도체 주식회사 Device for driving light emitting diode
DE102012111433B4 (en) 2012-11-26 2017-12-14 Pilz Auslandsbeteiligungen Gmbh Opto-electric protective device for securing a danger spot
CN103945590B (en) * 2013-01-18 2016-07-13 瀚宇彩晶股份有限公司 Light-emitting diode (LED) module and driving method thereof
EP2846608B1 (en) * 2013-09-06 2016-06-01 Tridonic GmbH & Co. KG Converter and method of operating a converter for supplying current to a light emitting means
JP6404560B2 (en) * 2013-10-23 2018-10-10 コイト電工株式会社 Light modulation circuit for vehicle detection of optical beacons
US9414453B2 (en) * 2014-05-21 2016-08-09 Lumens Co., Ltd. Lighting device
CN105407583B (en) * 2015-12-30 2017-03-22 哈尔滨工业大学 Single-pole quasi-resonance LED driving device based on Buck-Boost circuit and Flyback circuit
DE102019124212A1 (en) * 2019-09-10 2021-03-11 Audi Ag Demagnetization of the rotor of a separately excited synchronous machine
CN117374725B (en) * 2023-12-05 2024-03-19 成都光创联科技有限公司 Burst mode laser drive control circuit and method

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19917364A1 (en) * 1999-04-16 2000-10-19 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Half bridge circuit for regulators, has relief capacitor connected in parallel to each series diode which is connected in series to respective switch in main current flow direction
WO2007102106A2 (en) * 2006-03-06 2007-09-13 Philips Intellectual Property & Standards Gmbh Supply circuit and device comprising a supply circuit

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5327010A (en) * 1976-08-25 1978-03-13 Sony Corp Signal tran smitter
US4491903A (en) * 1982-11-19 1985-01-01 Montague Herbert R Combination low-pass filter and high frequency transient suppressor
CA2267407A1 (en) * 1997-08-01 1999-02-11 Koninklijke Philips Electronics N.V. Multiresonant dc-dc converter with full-wave rectifying means
FI104034B (en) * 1998-03-30 1999-10-29 Teknoware Oy Method and device for supplying power to light emitting diodes
KR100593760B1 (en) * 1998-12-11 2006-10-04 페어차일드코리아반도체 주식회사 Input current control device of electronic ballast control system
DE10013207B4 (en) * 2000-03-17 2014-03-13 Tridonic Gmbh & Co Kg Control of light emitting diodes (LEDs)
DE10036950A1 (en) * 2000-07-28 2002-02-07 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Control gear for discharge lamps with switch relief when preheating the electrode filaments
US6856101B1 (en) * 2002-07-24 2005-02-15 Acuity Brands, Inc. Method and apparatus for switching of parallel capacitors in an HID bi-level dimming system using voltage suppression
US6989807B2 (en) * 2003-05-19 2006-01-24 Add Microtech Corp. LED driving device
JP2006294782A (en) * 2005-04-08 2006-10-26 Hitachi Ltd Semiconductor light source device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19917364A1 (en) * 1999-04-16 2000-10-19 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Half bridge circuit for regulators, has relief capacitor connected in parallel to each series diode which is connected in series to respective switch in main current flow direction
WO2007102106A2 (en) * 2006-03-06 2007-09-13 Philips Intellectual Property & Standards Gmbh Supply circuit and device comprising a supply circuit

Also Published As

Publication number Publication date
JP2010050460A (en) 2010-03-04
KR20100023770A (en) 2010-03-04
EP2157834A2 (en) 2010-02-24
KR101719474B1 (en) 2017-03-24
US20100045208A1 (en) 2010-02-25
US8188678B2 (en) 2012-05-29
CN101657056A (en) 2010-02-24
DE102008039351B3 (en) 2010-01-28

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