Patent ID: 7990077

Claim:
A LED control circuit, comprising: a LED array circuit having a plurality of parallel branches, each of the branches having a constant-current regulator, an LED and an FET connected together in series, wherein the constant-current regulator supplies a steady current to the corresponding LED and the FET is capable of controlling the respective LED to be put out or lighted up; a control circuit including a microprocessor and a temperature sensor, the temperature sensor being connected with the microprocessor for detecting the temperature of the LEDs and transmitting the temperature signals to the microprocessor, the microprocessor being connected with the FETs of the LED array circuit for controlling the corresponding FETs to be repeatedly on or off according to the temperature signals in order to regulate the temperature of the corresponding LEDs respectively; and an audio-control circuit connected with the microprocessor, the audio-control circuit receiving audio signals and transmitting the received audio signals to the microprocessor, the microprocessor controlling the corresponding FETs to be off or on so as to further control the corresponding LEDs to be put out or lighted up according to the standing of the audio signals.