| 摘要 |
In a DC/DC converter including a half-wave rectifying circuit of a diode and a capacitor for rectifying a voltage occurring on a secondary side of an insulated transformer, an ON period of one of switch elements has a fixed duration, permitting control of an ON period of the other switch element in order to achieve a constant DC output voltage. Since the switching frequency varies only during the ON period of the controlled switch element, an increase in switching frequency is restrained during a period in which the circuit carries light loads.
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