Invention Grant
- Patent Title: LED circuit
- Patent Title (中): LED电路
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Application No.: US13223933Application Date: 2011-09-01
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Publication No.: US08796942B2Publication Date: 2014-08-05
- Inventor: Yeun Joong Lee , Deuk Hee Park , Sang Hyun Cha , Jae Shin Lee , Change Seok Lee
- Applicant: Yeun Joong Lee , Deuk Hee Park , Sang Hyun Cha , Jae Shin Lee , Change Seok Lee
- Applicant Address: KR Gyunggi-Do
- Assignee: Samsung Electro-Mechanics Co., Ltd.
- Current Assignee: Samsung Electro-Mechanics Co., Ltd.
- Current Assignee Address: KR Gyunggi-Do
- Agency: McDermott Will & Emery LLP
- Priority: KR10-2011-0049094 20110524
- Main IPC: H05B37/02
- IPC: H05B37/02

Abstract:
There is provided an LED circuit including a light emitting unit including a plurality of light emitting diodes; and a switching unit switching to apply only positive voltage of an AC power supply to an anode of the light emitting unit. Through this, the LED circuit can reduce complexity of a driving circuit. Further, lifespan and efficiency of the LED circuit may be improved since an electrolytic capacitor and a bridge circuit are not used. Further, any one light emitting diode may be prevented from determining the lifespan of all of the light emitting diodes since all of the light emitting diodes are driven at all times, thereby improving the lifespan of the light emitting diode.
Public/Granted literature
- US20120299497A1 LED CIRCUIT Public/Granted day:2012-11-29
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