发明名称 LED driving device and LED driving method using same
摘要 In various aspects of the present subject matter, a light emitting diode (LED) driving device and an LED driving method using the same are disclosed.
申请公布号 US9066392(B2) 申请公布日期 2015.06.23
申请号 US201214112601 申请日期 2012.04.18
申请人 发明人 Lee Dong-Il
分类号 H05B37/00;H05B33/08 主分类号 H05B37/00
代理机构 Dority & Manning, P.A. 代理人 Dority & Manning, P.A.
主权项 1. An LED driving device comprising: a light source unit including first to nth LED groups by DC power and mutually sequentially connected in series; and a driving control unit including first to nth input terminals sequentially connected to output terminals of the first to nth LED groups, respectively, and sensing currents flowing to a ground through the first to nth input terminals to generate information regarding a driving section to control magnitudes and a path of the currents flowing in the light source unit, wherein the driving control unit includes a driving section detecting block which comprises a finite state machine (FSM) having different states according to the driving sections.
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