A kind of circuit of power factor correction

A kind of circuit of power factor correction

  • CN 106,253,658 A
  • Filed: 08/26/2016
  • Published: 12/21/2016
  • Est. Priority Date: 08/26/2016
  • Status: Active Application
First Claim
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1. a circuit of power factor correction, it is characterised in that including:

  • One rectification circuit, in order to alternating voltage to be converted into DC voltage, described rectification circuit include one first outfan, oneTwo outfans and one the 3rd outfan;

    One boost conversion circuit, in order to by described dc voltage boost and export, boost conversion circuit include a first input end,One second input and one the 4th outfan, described 4th outfan of described boost conversion circuit connects described rectification circuitDescribed first outfan, described first input end connects described second outfan, and described second input connects described 3rd defeatedGo out end;

    One load circuit, is series between described first outfan of described rectification circuit and described 3rd outfan;

    Described boost conversion circuit includes;

    One iron inductance, one end of described iron inductance forms the described first input end of described boost conversion circuit;

    One first electric capacity, in parallel with described iron inductance;

    One the 3rd diode, the anode of described 3rd diode connects the other end of described iron inductance, described 3rd diodeNegative electrode connect described first electric capacity;

    One first switching tube, the other end of the 3rd input described iron inductance of connection of described first switching tube, described first5th outfan of switching tube forms described second input of described boost conversion circuit;

    One the 4th diode, the anode of described 4th diode connects the negative electrode of described 3rd diode, described 4th diodeNegative electrode form described 4th outfan of described boost conversion circuit.

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