Series composation step-up single phase power factor correction circuit
A technology for correcting circuits and single-phase power, applied in reactive power compensation, output power conversion devices, reactive power adjustment/elimination/compensation, etc., can solve the problems of affecting load capacity, high-frequency electromagnetic interference, and increasing costs. Achieve the effects of enhanced load capacity, high power output, and low additional cost
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[0014] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and embodiments. The following examples are further illustrations of the present invention, but do not constitute a limitation of the present invention.
[0015] The single-phase power factor correction circuit of series compensation and step-up designed by the present invention is as follows: figure 1 As shown, it is composed of a reactor circuit 1, a magnetic energy recovery switch 2 and a rectification and filtering circuit 3. The reactor circuit 1 is composed of a reactor L1, which is connected to the live wire of the single-phase AC power supply. The magnetic energy recovery switch 2 is composed of four power switches S1~S4, four power diodes D1~D4, an electrolytic capacitor E1, and a control and driver. An H-bridge structure is formed, the electrolytic capacitors are connected across the two ends of the H-bridge, and the four power switc...
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