作者: Gregory Szczeszynski , Shashank Wekhande , Vijay Mangtani
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摘要: An electronic circuit includes portions for identifying a largest voltage drop through one of plurality series connected diode strings and controlling boost switching regulator according to the drop. The can sense an open string, which would otherwise have drop, disconnect that string from control regulator. Another current limiting coupled or within configured operate with load. pulse width modulation dim light emitting diodes.