POWER FACTOR CORRECTOR AND POWER FACTOR CORRECTOR CONTROL METHOD Russian patent published in 2016 - IPC G05F1/70 

FIELD: electrical engineering.

SUBSTANCE: group of inventions relates to power supply sources with transformerless input power factor correction (PFC) devices, operating in wide range of input voltages for high capacity capacitive accumulators, and intended for supply mains power factor achievement, practically equal to one, both at unlimited capacity capacitive accumulator charge, and in output voltage stabilization mode at operation for active or complex load. PFC peculiar feature is introduction of shunting contact, which is made as electromechanical contactor and connected parallel to serial switch drain and source, wherein current sensor is made as current transformer and connected between inductor with series diode anode and parallel switch drain connection point.

EFFECT: peculiar feature of PFC control is use of two switches, serial and parallel, which are closed synchronously, connecting inductor to supply mains, wherein inductor is accumulating energy, and corrector output is completely cut off from supply mains, and are opened synchronously, thus connecting inductor to corrector output and completely switching off corrector output from power supply network.

2 cl, 5 dwg