| 摘要 |
PURPOSE:To reduce the switching loss of a push-pull inverter and to enhance the reliability of the inverter by applying a negative pulse voltage of a pulse generator output to the base terminal of a main transistor in the phase inverted from ON to OFF state in a main transistor. CONSTITUTION:When the voltage V1 of a zero point detecting winding 29 approaches zero, a transistor 21 maintains OFF state, and a transistor 22 is turned from ON to OFF. At this time, a transistor 17 is turned ON, a capacitor 13 is discharged, and a transistor 5 is reversely biased. On the other hand, a transistor 6 is biased by a power source 9 through a resistor 8 and turned ON. Accordingly, the transistor 5 is abruptly turned from ON to OFF, and the transistor 6 is turned from OFF to ON. |
