| 摘要 |
PURPOSE: A power supply device for a flat panel display is provided to adjust the output be detecting the magnitude of AC input voltage with a simple configuration using a shunt regulator. CONSTITUTION: A detection unit(400) generates a detection signal. The amplitude of the full-wave rectification of the detection signal is changed according to the size of the AC(Alternating Current) input voltage. A signal input part(600) changes the detection signal into the input signal. A photo coupler(500) transfers the detection signal of the detection unit to the signal input part. |
