Patent ID: 8144087

Claim:
A color LED driver, comprising: a driving constant voltage source for supplying a predetermined driving constant voltage; a driving circuit for converting the driving constant voltage of the driving constant voltage source into a plurality of driving currents, for driving color LEDs, the plurality of driving currents including red LED driving current, green LED driving current and blue LED driving current; a temperature compensation unit, independent of the driving constant voltage source for directly compensating variations in the red LED driving current and the green LED driving current due to a variation in a temperature, among the plurality of driving currents from the driving circuit; and an LED unit including a plurality of color LEDs which are turned on by the driving currents from the temperature compensation circuit and the driving current from the driving circuit wherein the temperature compensation unit is connected between the driving circuit and the LED unit, such that the plurality of driving currents sequentially pass through the driving circuit, the temperature compensation unit and the LED unit.