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FR3039741B1 - Circuit d'eclairage et lampe de vehicule l'utilisant - Google Patents

Circuit d'eclairage et lampe de vehicule l'utilisant Download PDF

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Publication number
FR3039741B1
FR3039741B1 FR1657309A FR1657309A FR3039741B1 FR 3039741 B1 FR3039741 B1 FR 3039741B1 FR 1657309 A FR1657309 A FR 1657309A FR 1657309 A FR1657309 A FR 1657309A FR 3039741 B1 FR3039741 B1 FR 3039741B1
Authority
FR
France
Prior art keywords
lamp
lighting system
vehicle user
idrv
down converter
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
FR1657309A
Other languages
English (en)
Other versions
FR3039741A1 (fr
Inventor
Tomoyuki Ichikawa
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.)
Koito Manufacturing Co Ltd
Original Assignee
Koito Manufacturing Co Ltd
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
Priority claimed from JP2016040218A external-priority patent/JP6687425B2/ja
Application filed by Koito Manufacturing Co Ltd filed Critical Koito Manufacturing Co Ltd
Publication of FR3039741A1 publication Critical patent/FR3039741A1/fr
Application granted granted Critical
Publication of FR3039741B1 publication Critical patent/FR3039741B1/fr
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]
    • H05B45/50—Circuit arrangements for operating light-emitting diodes [LED] responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/02—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments
    • B60Q1/04—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q11/00—Arrangement of monitoring devices for devices provided for in groups B60Q1/00 - B60Q9/00
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/32—Means for protecting converters other than automatic disconnection
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M3/00—Conversion of DC power input into DC power output
    • H02M3/02—Conversion of DC power input into DC power output without intermediate conversion into AC
    • H02M3/04—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters
    • H02M3/10—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M3/145—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M3/155—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
    • 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]
    • H05B45/375—Switched mode power supply [SMPS] using buck 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
    • H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/10—Controlling the light source
    • H05B47/17—Operational modes, e.g. switching from manual to automatic mode or prohibiting specific operations
    • 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
    • H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/20—Responsive to malfunctions or to light source life; for protection
    • H05B47/25—Circuit arrangements for protecting against overcurrent

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Power Engineering (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)

Abstract

Un convertisseur (20) abaisseur de tension (20) fournit un courant de commande (IDRV) à une source de lumière (2) et est commandé par rétroaction de sorte que le courant de commande (IDRV) se rapproche d'un courant cible (IREF). Un circuit de détection de circuit ouvert (40) compare à une tension de seuil (VTH) la différence de potentiel entre la tension d'entrée (VIN) et la tension de sortie (VOUT) du convertisseur (20) abaisseur de tension (20).
FR1657309A 2015-07-31 2016-07-28 Circuit d'eclairage et lampe de vehicule l'utilisant Active FR3039741B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2015152676 2015-07-31
JP2016040218A JP6687425B2 (ja) 2015-07-31 2016-03-02 点灯回路およびそれを用いた車両用灯具

Publications (2)

Publication Number Publication Date
FR3039741A1 FR3039741A1 (fr) 2017-02-03
FR3039741B1 true FR3039741B1 (fr) 2020-11-27

Family

ID=57796003

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1657309A Active FR3039741B1 (fr) 2015-07-31 2016-07-28 Circuit d'eclairage et lampe de vehicule l'utilisant

Country Status (3)

Country Link
US (2) US10165652B2 (fr)
DE (1) DE102016214014A1 (fr)
FR (1) FR3039741B1 (fr)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103986310B (zh) * 2014-05-30 2017-07-14 台达电子企业管理（上海）有限公司 变流器电路及其开路检测方法
CN107529240B (zh) * 2016-06-22 2024-03-15 赛尔富电子有限公司 一种应用于led灯的电源电路
TWI594664B (zh) * 2016-08-17 2017-08-01 緯創資通股份有限公司 發光二極體驅動裝置及驅動裝置的短路保護方法
WO2018047915A1 (fr) * 2016-09-09 2018-03-15 株式会社小糸製作所 Circuit d'éclairage, lampe de véhicule et procédé de commande de source de lumière
JP6916668B2 (ja) * 2017-05-26 2021-08-11 株式会社小糸製作所 車両用灯具および光源の点灯回路
DE102017220582A1 (de) * 2017-11-17 2019-05-23 Tridonic Gmbh & Co Kg Betriebsschaltung für ein LED-Leuchtmittel
JP2019129050A (ja) * 2018-01-24 2019-08-01 セイコーエプソン株式会社 光源装置及び投写型表示装置
US11324100B2 (en) * 2018-01-24 2022-05-03 Seiko Epson Corporation Light source apparatus and projection-type display apparatus
JP6809489B2 (ja) * 2018-01-25 2021-01-06 株式会社デンソー 昇圧型スイッチング電源回路
CN108633142B (zh) * 2018-07-09 2024-04-16 赛尔富电子有限公司 一种led灯的调光电路
EP3627970B1 (fr) * 2018-09-24 2021-05-05 Valeo Iluminacion Dispositif de détecteur et de dispositif d'éclairage automobile
US11942863B2 (en) * 2018-11-05 2024-03-26 Rohm Co., Ltd. Switching power supply including a logic circuit to control a discharge circuit
EP3713086A1 (fr) * 2019-03-18 2020-09-23 Siemens Aktiengesellschaft Circuit protecteur pour un interrupteur à semi-conducteur
CN110190733A (zh) * 2019-04-16 2019-08-30 杰华特微电子（杭州）有限公司 双芯片电源电路的供电方法和双芯片电源电路
JP7345326B2 (ja) 2019-09-06 2023-09-15 ローム株式会社 発光素子駆動装置
US12388342B2 (en) * 2019-12-27 2025-08-12 Sharp NEC Display Solutions, Ltd Electronic apparatus, display device, and voltage management method
DE102020208944A1 (de) * 2020-07-16 2022-01-20 Osram Gmbh Verfahren und schaltungsanordnung zur detektion eines teilausfalls eines leuchtmittels mit mindestens einem strang von halbleiterlichtquellen

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6900599B2 (en) 2001-03-22 2005-05-31 International Rectifier Corporation Electronic dimming ballast for cold cathode fluorescent lamp
JP4236894B2 (ja) 2002-10-08 2009-03-11 株式会社小糸製作所 点灯回路
JP2005086843A (ja) * 2003-09-04 2005-03-31 Taiyo Yuden Co Ltd 電力供給源の出力制御装置
US7643322B1 (en) * 2007-04-25 2010-01-05 National Semiconductor Corporation Dual loop constant on time regulator
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
JP5828103B2 (ja) 2010-12-20 2015-12-02 パナソニックＩｐマネジメント株式会社 Ｌｅｄ点灯装置及びそれを用いた照明器具
US8587203B2 (en) 2011-06-09 2013-11-19 Osram Sylvania Inc. Multiple channel light source power supply with output protection
US8937438B2 (en) 2011-06-09 2015-01-20 Osram Syvlania Inc. Power supply with restart circuit
US20120326618A1 (en) * 2011-06-24 2012-12-27 National Semiconductor Corporation Harmonic ripple-current light emitting diode (led) driver circuitry and method
JP5841375B2 (ja) * 2011-08-10 2016-01-13 ローム株式会社 降圧ｄｃ／ｄｃコンバータおよびその制御回路、それを用いた照明機器
KR101877371B1 (ko) * 2011-10-14 2018-07-12 삼성전자주식회사 전원 변조기를 보호하기 위한 장치 및 방법
EP2739119B1 (fr) * 2012-11-30 2015-08-19 Dialog Semiconductor GmbH Détection de court-circuit pour circuits d'éclairage
CN103152912B (zh) * 2013-01-29 2015-01-14 矽力杰半导体技术(杭州)有限公司 一种改进的高效率led驱动电路和驱动方法
JP6051909B2 (ja) 2013-02-12 2016-12-27 株式会社デンソー 電力供給装置
US9006977B2 (en) * 2013-03-11 2015-04-14 Osram Sylvania Inc. Systems and methods for power supply load detection with hot-plug compatibility
CN104507243B (zh) 2014-12-04 2017-02-22 中国船舶重工集团公司第七一七研究所 一种发光二极管和激光二极管开路故障检测电路

Also Published As

Publication number Publication date
US10165652B2 (en) 2018-12-25
US20180168017A1 (en) 2018-06-14
US20170034887A1 (en) 2017-02-02
US10383193B2 (en) 2019-08-13
DE102016214014A1 (de) 2017-02-02
FR3039741A1 (fr) 2017-02-03

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