WO2010056004A3 - Current balance circuit for efficiently driving an led light and lamp - Google Patents

Current balance circuit for efficiently driving an led light and lamp Download PDF

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Publication number
WO2010056004A3
WO2010056004A3 PCT/KR2009/006356 KR2009006356W WO2010056004A3 WO 2010056004 A3 WO2010056004 A3 WO 2010056004A3 KR 2009006356 W KR2009006356 W KR 2009006356W WO 2010056004 A3 WO2010056004 A3 WO 2010056004A3
Authority
WO
WIPO (PCT)
Prior art keywords
current
leds
balance circuit
lamp
mutual inductance
Prior art date
Application number
PCT/KR2009/006356
Other languages
French (fr)
Korean (ko)
Other versions
WO2010056004A2 (en
Inventor
장경원
Original Assignee
주식회사 인성전자
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 주식회사 인성전자 filed Critical 주식회사 인성전자
Publication of WO2010056004A2 publication Critical patent/WO2010056004A2/en
Publication of WO2010056004A3 publication Critical patent/WO2010056004A3/en

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]
    • H05B45/40—Details of LED load circuits
    • H05B45/44—Details of LED load circuits with an active control inside an LED matrix
    • H05B45/46—Details of LED load circuits with an active control inside an LED matrix having LEDs disposed in parallel lines
    • 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
    • H05B45/35—Balancing 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

Abstract

The present invention relates to a current balance circuit for efficiently driving an LED light and lamp. The current balance circuit of the present invention comprises: a current driving source for supplying a current; a plurality of LEDs arranged in parallel; and one or more mutual inductance coils which receive current from the current driving source, and supply the same current to the plurality of LEDs by the mutual inductance of a primary coil and a secondary coil which have the same number of turns. Alternatively, the current balance circuit of the present invention comprises: a current driving source for supplying a current; a plurality of LEDs arranged in parallel; and one or more mutual inductance coils which receive current via the LEDs and render the current flowing through the LEDs the same by the mutual inductance of a primary coil and a secondary coil which have the same number of turns. Whereby, the present invention controls the current applied to each of the LEDs to be the same during the serial or parallel driving of the LEDs when manufacturing a light or a lamp using LED elements, thus producing LEDs with improved reliability, long lifespan, and maximized efficiency, and reducing manufacturing costs for an LED driving circuit.
PCT/KR2009/006356 2008-11-11 2009-10-30 Current balance circuit for efficiently driving an led light and lamp WO2010056004A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2008-0111674 2008-11-11
KR1020080111674A KR20100052812A (en) 2008-11-11 2008-11-11 Current balance circuit for intelligent drive of led

Publications (2)

Publication Number Publication Date
WO2010056004A2 WO2010056004A2 (en) 2010-05-20
WO2010056004A3 true WO2010056004A3 (en) 2010-08-19

Family

ID=42170491

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2009/006356 WO2010056004A2 (en) 2008-11-11 2009-10-30 Current balance circuit for efficiently driving an led light and lamp

Country Status (2)

Country Link
KR (1) KR20100052812A (en)
WO (1) WO2010056004A2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010034079A1 (en) * 2010-08-12 2012-02-16 Seuffer Gmbh & Co.Kg Electrical control device for controlling power supply to LEDs of lighting device that is utilized for general lighting purposes, has switching converter comprising set of inductors that comprises common magnetic core
DE102010041613A1 (en) * 2010-09-29 2012-03-29 Osram Ag Circuit device for operating semiconductor light sources, has current-compensated choke switched between switch and rectifier, where leakage inductance of current-compensated choke is used as converter inductance
US8432104B2 (en) 2010-12-09 2013-04-30 Delta Electronics, Inc. Load current balancing circuit
KR101147524B1 (en) * 2011-09-27 2012-05-21 버추얼모션(주) Current sharing apparatus of power device for fault current blocking

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11238589A (en) * 1998-02-24 1999-08-31 Matsushita Electric Works Ltd Discharge lamp lighting device
KR20070080471A (en) * 2006-02-07 2007-08-10 삼성전자주식회사 Apparatus for driving lamp and liquid crystal display having the same
KR20080023812A (en) * 2006-09-12 2008-03-17 엘지.필립스 엘시디 주식회사 Back light unit and liquid crystal display device using the same
KR100826413B1 (en) * 2007-04-27 2008-04-29 삼성전기주식회사 Multi-lamp driving apparatus
KR20080071411A (en) * 2007-01-30 2008-08-04 주식회사 뉴파워 프라즈마 Current balancing circuit for driving led backlight light source

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11238589A (en) * 1998-02-24 1999-08-31 Matsushita Electric Works Ltd Discharge lamp lighting device
KR20070080471A (en) * 2006-02-07 2007-08-10 삼성전자주식회사 Apparatus for driving lamp and liquid crystal display having the same
KR20080023812A (en) * 2006-09-12 2008-03-17 엘지.필립스 엘시디 주식회사 Back light unit and liquid crystal display device using the same
KR20080071411A (en) * 2007-01-30 2008-08-04 주식회사 뉴파워 프라즈마 Current balancing circuit for driving led backlight light source
KR100826413B1 (en) * 2007-04-27 2008-04-29 삼성전기주식회사 Multi-lamp driving apparatus

Also Published As

Publication number Publication date
WO2010056004A2 (en) 2010-05-20
KR20100052812A (en) 2010-05-20

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