Boost converter with built-in transformer and voltage-doubling unit of switching capacitor
A technology of switched capacitors and transformers, which is applied in the field of DC-DC converters, can solve the problems of large switching loss, difficult to achieve, and large voltage stress of power switching tubes, and achieves the advantages of reducing conduction loss, fewer accessory components, and improving efficiency. Effect
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[0009] See figure 1 , The Boost converter with a built-in transformer and a switched capacitor voltage doubler unit of the present invention includes two power switch tubes S , An input filter inductor L f , A DC blocking capacitor C b , A clamping diode D m1 , A clamping capacitor C m1 , A freewheeling diode D m2 , A switched capacitor C m2 , An output diode D o , An output capacitor C o And a built-in transformer, the built-in transformer has two windings L a , L b , Input filter inductor L f Power supply V in Is connected to the positive terminal, input filter inductor L f The other end and the power switch tube S Source and clamp diode D m1 Anode and DC blocking capacitor C b And the second winding of the built-in transformer L b Connect one end to the DC blocking capacitor C b The other end of the first winding with the built-in transformer L a Is connected to one end of the clamp diode D m1 Cathode and clamp capacitor C m1 One end and freewheeling diode D m2 Is connected to ...
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