JP6396160B2 - 車両用灯具およびその点灯回路 - Google Patents

車両用灯具およびその点灯回路 Download PDF

Info

Publication number
JP6396160B2
JP6396160B2 JP2014204000A JP2014204000A JP6396160B2 JP 6396160 B2 JP6396160 B2 JP 6396160B2 JP 2014204000 A JP2014204000 A JP 2014204000A JP 2014204000 A JP2014204000 A JP 2014204000A JP 6396160 B2 JP6396160 B2 JP 6396160B2
Authority
JP
Japan
Prior art keywords
voltage
threshold voltage
resistor
control
current
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.)
Expired - Fee Related
Application number
JP2014204000A
Other languages
English (en)
Japanese (ja)
Other versions
JP2016074235A (ja
Inventor
村上　健太郎
健太郎 村上
隆雄 村松
隆雄 村松
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
Application filed by Koito Manufacturing Co Ltd filed Critical Koito Manufacturing Co Ltd
Priority to JP2014204000A priority Critical patent/JP6396160B2/ja
Priority to FR1559407A priority patent/FR3026912B1/fr
Priority to US14/874,005 priority patent/US9648679B2/en
Priority to DE102015219100.1A priority patent/DE102015219100A1/de
Publication of JP2016074235A publication Critical patent/JP2016074235A/ja
Application granted granted Critical
Publication of JP6396160B2 publication Critical patent/JP6396160B2/ja
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
    • F21S41/32—Optical layout thereof
    • F21S41/33—Multi-surface reflectors, e.g. reflectors with facets or reflectors with portions of different curvature
    • F21S41/334—Multi-surface reflectors, e.g. reflectors with facets or reflectors with portions of different curvature the reflector consisting of patch like sectors
    • F21S41/336—Multi-surface reflectors, e.g. reflectors with facets or reflectors with portions of different curvature the reflector consisting of patch like sectors with discontinuity at the junction between adjacent areas
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
    • F21S41/141—Light emitting diodes [LED]
    • F21S41/147—Light emitting diodes [LED] the main emission direction of the LED being angled to the optical axis of the illuminating device
    • F21S41/148—Light emitting diodes [LED] the main emission direction of the LED being angled to the optical axis of the illuminating device the main emission direction of the LED being perpendicular to the optical axis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/60—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution
    • F21S41/67—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on reflectors
    • F21S41/675—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on reflectors by moving reflectors
    • 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]
    • 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
    • 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
    • B60Q1/14—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 having dimming means
    • B60Q1/1415—Dimming circuits
    • B60Q1/1423—Automatic dimming circuits, i.e. switching between high beam and low beam due to change of ambient light or light level in road traffic
    • 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
    • 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]
    • H05B45/385—Switched mode power supply [SMPS] using flyback topology

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)
  • Mechanical Engineering (AREA)
JP2014204000A 2014-10-02 2014-10-02 車両用灯具およびその点灯回路 Expired - Fee Related JP6396160B2 (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2014204000A JP6396160B2 (ja) 2014-10-02 2014-10-02 車両用灯具およびその点灯回路
FR1559407A FR3026912B1 (fr) 2014-10-02 2015-10-02 Lampe pour vehicule et son circuit d'eclairage
US14/874,005 US9648679B2 (en) 2014-10-02 2015-10-02 Vehicle lamp and lighting circuit thereof
DE102015219100.1A DE102015219100A1 (de) 2014-10-02 2015-10-02 Fahrzeugleuchte und Beleuchtungskreis hiervon

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2014204000A JP6396160B2 (ja) 2014-10-02 2014-10-02 車両用灯具およびその点灯回路

Publications (2)

Publication Number Publication Date
JP2016074235A JP2016074235A (ja) 2016-05-12
JP6396160B2 true JP6396160B2 (ja) 2018-09-26

Family

ID=55531382

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2014204000A Expired - Fee Related JP6396160B2 (ja) 2014-10-02 2014-10-02 車両用灯具およびその点灯回路

Country Status (4)

Country Link
US (1) US9648679B2 (enExample)
JP (1) JP6396160B2 (enExample)
DE (1) DE102015219100A1 (enExample)
FR (1) FR3026912B1 (enExample)

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3036770B1 (fr) * 2015-05-26 2017-06-16 Valeo Vision Module lumineux pour un dispositif lumineux d’un vehicule automobile et procede
EP3334255B1 (en) * 2015-08-04 2020-11-25 Koito Manufacturing Co., Ltd. Lighting tool for vehicle and light source lighting circuit
FR3046712B1 (fr) * 2016-01-11 2018-02-02 Valeo Vision Module lumineux pour un vehicule automobile impliquant une source lumineuse coherente a intensite modulee
NL2016424B1 (en) * 2016-03-11 2017-10-02 Eldolab Holding Bv Modular lighting application.
JP6799939B2 (ja) * 2016-04-22 2020-12-16 ローム株式会社 発光素子駆動用半導体集積回路、発光素子駆動装置、発光装置、車両
JP2017204434A (ja) * 2016-05-13 2017-11-16 株式会社小糸製作所 車両用灯具、及び有機ｅｌ素子の検査方法
US10111299B2 (en) * 2016-05-31 2018-10-23 Infineon Technologies Ag Adaptive overvoltage protection for multifunction LED chain
JP6830774B2 (ja) 2016-08-25 2021-02-17 株式会社小糸製作所 点灯回路および車両用灯具
JP6975155B2 (ja) * 2016-09-09 2021-12-01 株式会社小糸製作所 点灯回路、車両用灯具
JP6538635B2 (ja) 2016-10-07 2019-07-03 トヨタ自動車株式会社 車両用照明装置
JP6691036B2 (ja) 2016-12-02 2020-04-28 トヨタ自動車株式会社 車両用照明装置
JP6916649B2 (ja) * 2016-12-13 2021-08-11 株式会社小糸製作所 点灯回路および車両用灯具
JP6595445B2 (ja) 2016-12-14 2019-10-23 トヨタ自動車株式会社 車両用照明装置
JP6932500B2 (ja) * 2016-12-15 2021-09-08 株式会社小糸製作所 点灯回路および車両用灯具
JP6767860B2 (ja) * 2016-12-20 2020-10-14 株式会社小糸製作所 コンバータコントローラおよび車両用灯具
WO2018141766A1 (en) * 2017-02-06 2018-08-09 Philips Lighting Holding B.V. A power converter and power conversion method
JP6956513B2 (ja) * 2017-04-26 2021-11-02 株式会社小糸製作所 モータの駆動回路および車両用灯具
JP6872413B2 (ja) * 2017-04-28 2021-05-19 株式会社小糸製作所 車両用灯具
JP6933548B2 (ja) * 2017-05-11 2021-09-08 株式会社小糸製作所 駆動回路、車両用灯具
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
WO2018231230A1 (en) * 2017-06-14 2018-12-20 Code 3, Inc. Low-dropout current regulator for light head
CN112602378B (zh) * 2018-08-10 2023-08-11 株式会社小糸制作所 点亮电路及车辆用灯具
JP7295869B2 (ja) * 2018-08-27 2023-06-21 株式会社小糸製作所 点灯回路および車両用灯具
JP7174672B2 (ja) * 2019-06-12 2022-11-17 ニチコン株式会社 スイッチング電源装置
FR3101931B1 (fr) * 2019-10-15 2021-09-24 Valeo Vision Système d’eclairage comportant une source de lumiere pixelisee et un capteur de courant
CN113071405B (zh) * 2021-03-30 2022-12-09 一汽解放汽车有限公司 日间行车灯驱动控制方法、装置、计算机设备和存储介质
EP4369865A1 (de) 2022-11-08 2024-05-15 ZKW Group GmbH Leuchtvorrichtung

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6225992B1 (en) * 1997-12-05 2001-05-01 United Microelectronics Corp. Method and apparatus for generating bias voltages for liquid crystal display drivers
EP2094063A4 (en) * 2006-10-25 2010-12-01 Panasonic Elec Works Co Ltd LIGHT EMITTING DIODE LIGHTING CIRCUIT AND LIGHTING APPARATUS USING SAID CIRCUIT
JP5089193B2 (ja) 2007-02-22 2012-12-05 株式会社小糸製作所 発光装置
JP5322499B2 (ja) * 2008-05-23 2013-10-23 ローム株式会社 スイッチング電源装置および携帯機器
JP4943402B2 (ja) * 2008-10-09 2012-05-30 シャープ株式会社 Ｌｅｄ駆動回路、ｌｅｄ照明灯具、ｌｅｄ照明機器、及びｌｅｄ照明システム
US8536799B1 (en) * 2010-07-30 2013-09-17 Cirrus Logic, Inc. Dimmer detection
DE102010048604A1 (de) * 2010-10-15 2012-04-19 Automotive Lighting Reutlingen Gmbh Verfahren und elektrische Schaltung zum Betrieb einer Lichtquelle eines Kraftfahrzeugscheinwerfers mit Gleichstrom, sowie Lichtmodul eines Kraftfahrzeugscheinwerfers mit einer solchen Schaltung und Kraftfahrzeugscheinwerfers mit einem solchen Lichtmodul
JP5891454B2 (ja) * 2011-04-18 2016-03-23 パナソニックＩｐマネジメント株式会社 半導体発光素子の点灯装置およびそれを用いた照明器具
JP5702216B2 (ja) * 2011-04-22 2015-04-15 株式会社小糸製作所 光学ユニット
JP5698065B2 (ja) 2011-04-22 2015-04-08 株式会社小糸製作所 障害物検出装置
JP5872833B2 (ja) 2011-10-06 2016-03-01 株式会社小糸製作所 半導体光源点灯回路
KR101305687B1 (ko) * 2011-10-28 2013-09-09 엘지이노텍 주식회사 Ｌｅｄ 보호 회로
DE102012201415A1 (de) 2012-02-01 2013-08-01 Osram Gmbh Schaltungsanordnung, Leuchteinheit für ein Fahrzeug und Verfahren zur Ansteuerung von Halbleiterleuchtelementen
JP6009205B2 (ja) * 2012-04-20 2016-10-19 株式会社小糸製作所 半導体光源点灯回路
JP6012487B2 (ja) * 2013-01-23 2016-10-25 旭化成エレクトロニクス株式会社 Ｌｅｄ調光回路
JP2014157785A (ja) * 2013-02-18 2014-08-28 Koito Mfg Co Ltd 駆動回路、車輌用灯具
JP6114582B2 (ja) * 2013-03-14 2017-04-12 株式会社小糸製作所 光源制御装置
JP2015076923A (ja) * 2013-10-07 2015-04-20 ローム株式会社 スイッチングコンバータおよびその制御回路、制御方法、それを用いた照明装置、電子機器

Also Published As

Publication number Publication date
US9648679B2 (en) 2017-05-09
DE102015219100A1 (de) 2016-04-07
FR3026912B1 (fr) 2019-11-01
US20160096467A1 (en) 2016-04-07
FR3026912A1 (enExample) 2016-04-08
JP2016074235A (ja) 2016-05-12

Similar Documents

Publication Publication Date Title
JP6396160B2 (ja) 車両用灯具およびその点灯回路
JP6820909B2 (ja) 車両用灯具およびその点灯回路
JP6936359B2 (ja) 車両用灯具
JP6726668B2 (ja) 車両用灯具および光源の点灯回路
JP6899710B2 (ja) 車両用灯具
CN108966409B (zh) 车用灯具和光源的点亮电路
JP6872413B2 (ja) 車両用灯具
JP6521693B2 (ja) 車両灯具システム
WO2016104319A1 (ja) 点灯回路および車両用灯具
WO2018047915A1 (ja) 点灯回路、車両用灯具および光源の駆動方法
JP6767860B2 (ja) コンバータコントローラおよび車両用灯具
CN110939913A (zh) 车辆用灯具及其控制方法
JP6916649B2 (ja) 点灯回路および車両用灯具
JP7250621B2 (ja) 車両用灯具
JP6889612B2 (ja) 車両用灯具および光源の点灯回路
CN118160412A (zh) 具有pwm校正单元的用于led改型的驱动器、led改型、和车辆前灯

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20170906

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20180418

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20180424

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20180618

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20180814

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20180829

R150 Certificate of patent or registration of utility model

Ref document number: 6396160

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

LAPS Cancellation because of no payment of annual fees