Invention Grant
US09585214B2 LED driving circuit for continuously driving LED, LED lighting device comprising same and driving method
有权
LED驱动电路,用于连续驱动LED,LED照明装置及其驱动方法
- Patent Title: LED driving circuit for continuously driving LED, LED lighting device comprising same and driving method
- Patent Title (中): LED驱动电路,用于连续驱动LED,LED照明装置及其驱动方法
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Application No.: US14753612Application Date: 2015-06-29
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Publication No.: US09585214B2Publication Date: 2017-02-28
- Inventor: Hye Man Jung , Hyun Gu Kang , Sang Wook Han
- Applicant: Seoul Semiconductor Co., Ltd.
- Applicant Address: KR Ansan-si
- Assignee: Seoul Semiconductor Co., Ltd.
- Current Assignee: Seoul Semiconductor Co., Ltd.
- Current Assignee Address: KR Ansan-si
- Agency: H.C. Park & Associates, PLC
- Priority: KR10-2012-0157223 20121228; KR10-2012-0157224 20121228
- Main IPC: H05B33/08
- IPC: H05B33/08

Abstract:
An exemplary embodiment discloses a light-emitting diode (LED) driving circuit including an LED driving module configured to provide a first driving voltage to an LED light emitting module including a first LED group to an n-th LED group, n is an integer which is equal to or larger than 2, and sequentially drive the first LED group to the n-th LED group depending on a voltage level of the first driving voltage and a second driving voltage providing module configured to store some of the first driving voltage and selectively provide a second driving voltage to some of the LED groups other than at least the first LED group to an m-th LED group among the LED groups in a Vfm compensation section, 1≦m≦n−1, according to a control of the LED driving module.
Public/Granted literature
- US20150305098A1 LED DRIVING CIRCUIT FOR CONTINUOUSLY DRIVING LED, LED LIGHTING DEVICE COMPRISING SAME AND DRIVING METHOD Public/Granted day:2015-10-22
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