| 摘要 |
PURPOSE:To obtain a load voltage having an invariable constant effective through a switching regulator which controls the turn-on angle of an element by using a control rectifying element for a switching element between an AC power source and a load. CONSTITUTION:When a load voltage rises (or drops), the collector-emitter resistance of a transistor 28 increases (or decreases). A capacitor 38 is charged at a charging speed controlled by the value of the resistance. Therefore, the turn-on time of a trigger element 40 is delayed to decrease (or increase) the turn-on angle of the control rectifying element 14, so the load is supplied with the load voltage having the invariably constant effective value. |
