CA2776185C - Multiple channel light source power supply with output protection - Google Patents

Multiple channel light source power supply with output protection Download PDF

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Publication number
CA2776185C
CA2776185C CA2776185A CA2776185A CA2776185C CA 2776185 C CA2776185 C CA 2776185C CA 2776185 A CA2776185 A CA 2776185A CA 2776185 A CA2776185 A CA 2776185A CA 2776185 C CA2776185 C CA 2776185C
Authority
CA
Canada
Prior art keywords
converter circuits
voltage converter
voltage
circuit
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.)
Active
Application number
CA2776185A
Other languages
English (en)
French (fr)
Other versions
CA2776185A1 (en
Inventor
Keng CHEN
Christian Breuer
Peng XIAO
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.)
ABL IP Holding LLC
Original Assignee
Osram Sylvania Inc
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 US13/404,415 external-priority patent/US8653736B2/en
Priority claimed from US13/448,890 external-priority patent/US8587203B2/en
Application filed by Osram Sylvania Inc filed Critical Osram Sylvania Inc
Publication of CA2776185A1 publication Critical patent/CA2776185A1/en
Application granted granted Critical
Publication of CA2776185C publication Critical patent/CA2776185C/en
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
    • 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]
    • H05B45/60—Circuit arrangements for operating LEDs comprising organic material, e.g. for operating organic light-emitting diodes [OLED] or polymer light-emitting diodes [PLED]
    • 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

  • Dc-Dc Converters (AREA)
  • Led Devices (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)
CA2776185A 2011-06-09 2012-05-08 Multiple channel light source power supply with output protection Active CA2776185C (en)

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
US201161495291P 2011-06-09 2011-06-09
US61/495,291 2011-06-09
US201161537562P 2011-09-21 2011-09-21
US61/537,562 2011-09-21
US13/404,415 US8653736B2 (en) 2011-06-09 2012-02-24 Multiple channel light source power supply with output protection
US13/404,415 2012-02-24
US13/448,890 2012-04-17
US13/448,890 US8587203B2 (en) 2011-06-09 2012-04-17 Multiple channel light source power supply with output protection

Publications (2)

Publication Number Publication Date
CA2776185A1 CA2776185A1 (en) 2012-12-09
CA2776185C true CA2776185C (en) 2016-11-15

Family

ID=47305271

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2776185A Active CA2776185C (en) 2011-06-09 2012-05-08 Multiple channel light source power supply with output protection

Country Status (4)

Country Link
JP (1) JP5694237B2 (ja)
KR (1) KR101531628B1 (ja)
CN (1) CN102821503B (ja)
CA (1) CA2776185C (ja)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN203368856U (zh) * 2013-07-29 2013-12-25 深圳市日上光电股份有限公司 一种led照明独立式控制系统
FR3035768B1 (fr) * 2015-04-29 2018-06-29 Valeo Vision Dispositif lumineux realisant plusieurs fonctions lumineuses d'un vehicule automobile a l'aide de groupes de sources de lumiere dedies par fonction
CN105896958B (zh) * 2016-04-22 2019-06-18 天地（常州）自动化股份有限公司 矿井安全监控用传感器的电源模块
KR102135128B1 (ko) * 2018-01-25 2020-07-17 주식회사 디엔씨아이 Ac/dc 컨버터 모듈을 가지는 조명 램프 시스템 및 전원 분배기
CN109803467B (zh) * 2019-02-21 2024-04-12 生迪智慧科技有限公司 多路led驱动装置及方法

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001339941A (ja) * 2000-05-24 2001-12-07 Toshiba Corp 電圧変換回路の保護回路
AU2002224382A1 (en) * 2000-10-13 2002-04-22 Primarion, Inc. System and method for current sensing
JP4398411B2 (ja) * 2005-07-12 2010-01-13 株式会社小糸製作所 車両用灯具の点灯制御装置
JP4775912B2 (ja) * 2007-07-06 2011-09-21 株式会社小糸製作所 車両用灯具の点灯制御装置
JP2009252344A (ja) * 2008-04-01 2009-10-29 Sharp Corp 照明用白色ｌｅｄ駆動回路並びにこれを備えた照明装置及び電子機器
US7906913B2 (en) * 2008-04-18 2011-03-15 Osram Sylvania Inc. Low loss input channel detection device for a direct current powered lighting system
KR101053335B1 (ko) * 2009-08-31 2011-08-01 삼성전기주식회사 Ｌｅｄ 구동 회로
US8294379B2 (en) * 2009-11-10 2012-10-23 Green Mark Technology Inc. Dimmable LED lamp and dimmable LED lighting apparatus
US8410716B2 (en) * 2009-12-17 2013-04-02 Monolithic Power Systems, Inc. Control of multi-string LED array

Also Published As

Publication number Publication date
JP5694237B2 (ja) 2015-04-01
KR20120137290A (ko) 2012-12-20
CN102821503A (zh) 2012-12-12
CN102821503B (zh) 2017-01-18
KR101531628B1 (ko) 2015-06-25
CA2776185A1 (en) 2012-12-09
JP2012256599A (ja) 2012-12-27

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Legal Events

Date Code Title Description
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Effective date: 20130620