| 摘要 |
PURPOSE:To minimize power loss in a simple structure and make the DC compo nent of a load current changeable within a wide range from positive polarity to negative polarity. CONSTITUTION:On the low voltage side of an AC high voltage transistor secondary winding, a DC fixed current circuit 3 consisting of a transistor and a diode, a constant voltage circuit 2 connected to the DC constant current circuit 3 with opposite polarities, and a load current detecting circuit 4 for detecting the DC content of the load current are provided, and the output of the constant voltage circuit 2 and the output of the DC constant current circuit 3 are controlled by the output of the load current detecting circuit 4. |
