| 摘要 |
PURPOSE: According to the power supply device for the flat panel display is the size of the alternating current input voltage, the output voltage is controlled. The structure is simplified. The manufacturing cost can be reduced. CONSTITUTION: According to the first switching unit(200) is the alternating current input voltage, the pass of the current is controlled. According to the second switching unit(300) is the pass of the current controlled in the first switching unit, the switching operation is. |
