Patent ID: 8928233
Filing Date: 2015-01-06
Classification: H05B

Abstract:
1. A light emitting diode control circuit with carrier signal control, the light emitting diode control circuit applied to a power positive terminal, a power negative terminal and at least a light emitting diode, the light emitting diode control circuit comprising: a signal coupling unit electrically connected to the power positive terminal; an operational amplifier electrically connected to the signal coupling unit and the power negative terminal; a demodulation unit electrically connected to the operational amplifier and the power negative terminal; an identification and control logic unit electrically connected to the demodulation unit and the power negative terminal; a counting and shift-registering unit electrically connected to the identification and control logic unit and the power negative terminal; a data register electrically connected to the counting and shift-registering unit and the power negative terminal; an output register electrically connected to the data register and the power negative terminal; at least a current output unit electrically connected to the output register and the light emitting diode; an address encoding unit electrically connected to the identification and control logic unit; and an address register electrically connected to the identification and control logic unit and the address encoding unit.