Patent ID: 8400078

Claim:
A light emitting diode (LED) driving controller for controlling an LED driving circuit to drive an LED module, wherein the LED driving controller is coupled to a first power source, and the LED driving circuit is coupled to a second power source, comprising: a feedback control unit for outputting a control signal to adjust a driving current in accordance with a current feedback signal indicative of a level of the driving current passing through the LED module; a protection unit for determining whether or not generating a protection signal in accordance with the current feedback signal to stop the LED driving circuit from outputting the driving current until the LED driving controller is restarted; wherein the protection unit counts the number of occurrences of the level of the driving current being higher than a first current threshold, or otherwise being lower than a second current and generates the protection signal when the number thereof is higher than a preset number; and a protection starting unit, determining whether to start the protection unit in accordance with the current feedback signal.