Patent ID: 8492993

Claim:
A light emitting diode driving circuit, having a function of circuit detecting, the light emitting diode driving circuit comprising: a power supply terminal; at least one light emitting diode (LED); a switch element coupled between the power supply terminal and the at least one LED to determine whether the power supply terminal powers the at least one LED; a current control circuit coupled between the at least one LED and a reference voltage end and having a first transistor controlling a magnitude of a current flowing through the at least one LED; a detecting circuit detecting at least one of a control end, a high voltage end, and a low voltage end of the first transistor and generating a state signal to turn off the switch element when any one of voltages of the control end, the high voltage end, and the low voltage end is out of a corresponding predetermined voltage range; and a control circuit coupled to a control end of the switch element, wherein the control circuit turns off the switch element when receiving the state signal.