Active passive mixed single phase power factor correcting circuit
A technology for correcting circuits and single-phase power, applied in reactive power adjustment/elimination/compensation, reactive power compensation, output power conversion devices, etc., can solve high-frequency electromagnetic interference, affect load capacity, and increase costs. Achieve the effects of enhanced load capacity, reduced ripple amplitude, and low additional cost
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[0015] 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.
[0016] The active and passive hybrid single-phase power factor correction circuit designed by the present invention is shown in Fig. 1, and is composed of a reactor circuit 1, a magnetic energy recovery switch 2, a third-order resonant circuit 3 and a rectification and filtering circuit 4. 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, and an electrolytic capacitor E1. The power switch and the power diode are connected in antiparallel to form four reverse resistance switches and form an H bridge structure. , the e...
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