| 摘要 |
PURPOSE:To improve efficiency and protectional reliability against thermal breakdown by a method wherein by equalizing ON-durations of a pair of transistors, they are burdened respectively with an equal load respectively. CONSTITUTION:By turning alternately a pair of transistors Q1, Q2 which are connected with a driving coil 8 of a saturable transformer T2 ON and OFF, a d.c. voltage is switched, and by this switching an a.c. voltage is obtained. A voltage difference between positive and negative peak of output a.c. voltage, that is a voltage difference between Ea and Eb is detected, and by this voltage difference applied on the driving coil 8 a voltage between a base and an emitter of a pair of transistors Q1, Q2 is controlled. |
