| 摘要 |
A main-output circuit section includes a synchronous rectifying circuit composed of a NMOS, therefore, even if a load RL1 become light, a rise of direct current output voltage is prevented without a dummy resistor and electric dummy circuit, accordingly, when a NMOS is in an ON state, an abrupt narrowing of a time width does not occur. Therefore the product of voltage and time is ensured, direct current output voltage is easily produced stably.
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