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Switching power supply with plural resonant converters and variable frequency
Switching power supply with plural resonant converters and variable frequency
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机译:具有多个谐振转换器和变频的开关电源
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摘要
A plurality of power supply circuits Z1′ are provided according to a load capacity. The power supply circuits Z1′ have sides connected in parallel on the side of a direct current input Vi and have sides connected in series on the sides of alternating current outputs Ao. A rectifying circuit DC1 is connected via a resonance circuit Z2 across a combined output of the serially connected sides of the power supply circuits Z1′ on the sides of the alternating current outputs Ao. Switching frequencies are simultaneously controlled by a single control signal outputted from a control circuit S1 based on a direct current output voltage detected from the rectifying circuit DC1 through a detection resistor R5. 展开▼