Patent ID: 8587206

Claim:
A light-emitting diode (LED) power supply device, comprising: an alternating current (AC) power; and a power supply device, comprising: a front-end constant voltage power supply system comprising: a constant voltage power supply device, having an input terminal connected to an L pole and an N pole of the AC power; and an analog control device, corresponding to the constant voltage power supply device, and disposed in the front-end constant voltage power supply system; a back-end constant current power supply system comprising: a constant current power supply device, having an input terminal connected to an output terminal of the constant voltage power supply device and an output terminal connected to an LED lamp; and a digital control device, corresponding to the constant current power supply device, and disposed in the back-end constant current power supply system; and a programmable interface, wherein the digital control device communicates with an upper computer through the programmable interface, wherein the upper computer sets the digital control device through the programmable interface, so as to make the LED power supply device to supply power to the LED lamp of different specifications.