EP2487994A3 - Dispositif DEL avec unité de limitation de tension et résistance de limitation de courant de dérivation - Google Patents

Dispositif DEL avec unité de limitation de tension et résistance de limitation de courant de dérivation Download PDF

Info

Publication number
EP2487994A3
EP2487994A3 EP12154768.1A EP12154768A EP2487994A3 EP 2487994 A3 EP2487994 A3 EP 2487994A3 EP 12154768 A EP12154768 A EP 12154768A EP 2487994 A3 EP2487994 A3 EP 2487994A3
Authority
EP
European Patent Office
Prior art keywords
voltage
limiting
led device
limiting unit
shunt 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.)
Withdrawn
Application number
EP12154768.1A
Other languages
German (de)
English (en)
Other versions
EP2487994A2 (fr
Inventor
Tai-Her Yang
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.)
Individual
Original Assignee
Individual
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 US13/025,296 external-priority patent/US8674623B2/en
Priority claimed from US13/025,331 external-priority patent/US8749169B2/en
Application filed by Individual filed Critical Individual
Publication of EP2487994A2 publication Critical patent/EP2487994A2/fr
Publication of EP2487994A3 publication Critical patent/EP2487994A3/fr
Withdrawn legal-status Critical Current

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]
    • H05B45/40—Details of LED load 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]
    • H05B45/50—Circuit arrangements for operating light-emitting diodes [LED] responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits

Landscapes

  • Led Devices (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)
  • Emergency Protection Circuit Devices (AREA)
EP12154768.1A 2011-02-11 2012-02-09 Dispositif DEL avec unité de limitation de tension et résistance de limitation de courant de dérivation Withdrawn EP2487994A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US13/025,296 US8674623B2 (en) 2011-02-11 2011-02-11 LED device with voltage-limiting unit and shunt current-limiting resistance
US13/025,331 US8749169B2 (en) 2011-02-11 2011-02-11 LED device with voltage-limiting unit and voltage-equalizing and current-limiting resistances

Publications (2)

Publication Number Publication Date
EP2487994A2 EP2487994A2 (fr) 2012-08-15
EP2487994A3 true EP2487994A3 (fr) 2013-11-20

Family

ID=45655548

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12154768.1A Withdrawn EP2487994A3 (fr) 2011-02-11 2012-02-09 Dispositif DEL avec unité de limitation de tension et résistance de limitation de courant de dérivation

Country Status (5)

Country Link
EP (1) EP2487994A3 (fr)
JP (1) JP2012178559A (fr)
CN (2) CN102685974A (fr)
SG (1) SG183624A1 (fr)
TW (2) TWM440403U (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SG183624A1 (en) * 2011-02-11 2012-09-27 Tai-Her Yang Led device with voltage-limiting unit and shunt current-limiting resistance

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020047606A1 (en) * 2000-09-29 2002-04-25 Aerospace Optics, Inc. Power efficient LED driver quiescent current limiting circuit configuration
US20050168162A1 (en) * 2004-02-02 2005-08-04 Pioneer Corporation Lighting device and lighting system
US20050206325A1 (en) * 2004-03-19 2005-09-22 Tohoku Pioneer Corporation Drive device and drive method of light emitting elements
DE102006029957A1 (de) * 2006-06-29 2008-01-03 Osram Opto Semiconductors Gmbh Beleuchtungseinrichtung
WO2008050380A1 (fr) * 2006-10-23 2008-05-02 Pioneer Corporation Appareil de test de panneau d'affichage et procédé de test
US20080157689A1 (en) * 2005-09-20 2008-07-03 Akira Kato Led lighting device
DE202010000890U1 (de) * 2010-01-14 2010-04-08 Chen, Hui San Leitungsanordnung für eine LED-Lampe
WO2010091321A1 (fr) * 2009-02-06 2010-08-12 Aerospace Optics, Inc. Interrupteur à bouton-poussoir éclairé avec gradation progressive

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5684368U (fr) * 1979-11-29 1981-07-07
JPS57167690A (en) * 1981-04-07 1982-10-15 Toa Tokushu Denki Kk Control of light-emitting diode
US20020043943A1 (en) * 2000-10-10 2002-04-18 Menzer Randy L. LED array primary display light sources employing dynamically switchable bypass circuitry
US6636027B1 (en) * 2000-10-24 2003-10-21 General Electric Company LED power source
JP2003332625A (ja) * 2002-05-10 2003-11-21 Toko Inc Ｌｅｄ点灯回路
JP2004340830A (ja) * 2003-05-16 2004-12-02 Calsonic Kansei Corp 照明装置及び該照明装置を有する車両用表示装置
JP2007165161A (ja) * 2005-12-15 2007-06-28 Sharp Corp Ｌｅｄ照明装置、ｌｅｄバックライト装置、及び画像表示装置
US7800876B2 (en) * 2006-01-09 2010-09-21 Microsemi Corp. - Analog Mixed Signal Group Ltd. Fault detection mechanism for LED backlighting
CN100525562C (zh) * 2007-02-17 2009-08-05 深圳市纯英新时代科技有限公司 Led灯组件电路单元与复合串联型led灯电路
CA2649255A1 (fr) * 2008-01-14 2009-07-14 Tai-Her Yang Circuit d'excitation de diode electroluminescente bidirectionnelle dans circuit antiresonant d'alimentation pulsee
US20090224688A1 (en) * 2008-03-07 2009-09-10 Tai-Her Yang Unipolar (dis)charging led drive method and circuit thereof
JP5220487B2 (ja) * 2008-06-16 2013-06-26 昭和電工株式会社 発光装置及びそれを備えた照明システム
JP2010003810A (ja) * 2008-06-19 2010-01-07 Ae Tekku Kk 発光ダイオード駆動回路
JP2010073437A (ja) * 2008-09-17 2010-04-02 Toshiba Corp 燃料供給装置および燃料電池システム
US8044599B2 (en) * 2009-02-17 2011-10-25 Chu-Cheng Chang Light string with alternate LED lamps and incandescent lamps
JP5467791B2 (ja) * 2009-04-09 2014-04-09 日東光学株式会社 Ｌｅｄ照明装置およびｌｅｄ発光装置
JP3157456U (ja) * 2009-12-02 2010-02-18 黄泰翔 交流用ｌｅｄの保護回路
SG183624A1 (en) * 2011-02-11 2012-09-27 Tai-Her Yang Led device with voltage-limiting unit and shunt current-limiting resistance

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020047606A1 (en) * 2000-09-29 2002-04-25 Aerospace Optics, Inc. Power efficient LED driver quiescent current limiting circuit configuration
US20050168162A1 (en) * 2004-02-02 2005-08-04 Pioneer Corporation Lighting device and lighting system
US20050206325A1 (en) * 2004-03-19 2005-09-22 Tohoku Pioneer Corporation Drive device and drive method of light emitting elements
US20080157689A1 (en) * 2005-09-20 2008-07-03 Akira Kato Led lighting device
DE102006029957A1 (de) * 2006-06-29 2008-01-03 Osram Opto Semiconductors Gmbh Beleuchtungseinrichtung
WO2008050380A1 (fr) * 2006-10-23 2008-05-02 Pioneer Corporation Appareil de test de panneau d'affichage et procédé de test
WO2010091321A1 (fr) * 2009-02-06 2010-08-12 Aerospace Optics, Inc. Interrupteur à bouton-poussoir éclairé avec gradation progressive
DE202010000890U1 (de) * 2010-01-14 2010-04-08 Chen, Hui San Leitungsanordnung für eine LED-Lampe

Also Published As

Publication number Publication date
TWM440403U (en) 2012-11-01
TW201242420A (en) 2012-10-16
CN102685974A (zh) 2012-09-19
SG183624A1 (en) 2012-09-27
EP2487994A2 (fr) 2012-08-15
CN202514100U (zh) 2012-10-31
JP2012178559A (ja) 2012-09-13

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