| 摘要 |
PURPOSE:To improve efficiency by using one starting resistor, and to hold the balance of an output voltage waveform. CONSTITUTION:A step-up transformer 12 with input coils 12P1, 12P2 supplied with DC current from an intermediate tap 19, an output coil 12S, and a feedback coil 12f, to which an intermediate tap 24 is installed, is provided, and the positive-electrode side circuit section 25 of a DC power supply 16 and the intermediate tap 24 of the feedback coil 12f are connected through a starting resistor 26. The base of a transistor 13 interrupting the current of the input coil 12P1 is connected at one end section of the feedback coil 12f and the base of a transistor 14 interrupting the current of the input coil 12P2 at the other end section of the feedback coil 12f respectively. |
