SINGLE-PHASE BRIDGELESS POWER FACTOR CORRECTION CIRCUIT Russian patent published in 2015 - IPC G05F1/70 

FIELD: electricity.

SUBSTANCE: single-phase bridgeless power factor correction circuit comprises two fully controlled valves, three diodes, inductive storage and filter capacitor; diode 1 is coupled by anode to the network phase and by cathode to anode of the controlled valve 2, which cathode is coupled to interconnected cathode of diode 3 and the first output of inductive storage 4, anode of diode 3 is coupled to the network neutral, the second output of inductive storage 4 is coupled to interconnected anodes of the controlled valve 5 and diode 6, cathode of the controlled valve 5 is coupled to the network neutral, cathode of diode 6 is coupled to positive output of filter capacitor 7, which negative output is coupled to the network neutral; the circuit is distinguished by the fact that diode 8 and diode 9 coupled by anodes to cathode of the controlled valve 5, cathode of diode 8 is coupled to the network phase, cathode of diode 9 is coupled to the network neutral.

EFFECT: conversion of half-wave power factor correction circuit to double-wave circuit with maintenance of common point for input and output voltage.

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