| 摘要 |
PURPOSE:To miniaturize a power source circuit and to reduce costs. CONSTITUTION:One end of the primary winding L11 of a transformer T1 and that of the secondary winding L12 thereof are connected to one end of a capacitive load Cp, the other end of the primary winding L11 is, on one hand, connected to a DC power source wiring Vs via a diode D1 and a switch element SW1, and on the other hand, to a grounding conductor Vs via a diode D2 and a switch element SW2, the other end of the secondary winding L12 is, on one hand, connected to the DC power source wiring Vs via a diode D3, and on the other hand, to a grounding conductor GND via a diode D4 and thus a power source Vs is only needed. |
