High efficiency power factor correction circuit

Details High efficiency power factor correction circuit High efficiency power factor correction circuit

1989-04-17

1990-08-14

Wong, Peter S.

Electric power conversion systems

Current conversion

With means to introduce or eliminate frequency components

363 89, 363126, 363 86, H02M 3335

Patent

active

049492349

ABSTRACT:
The power factor correction circuit can deliver a high output power, high efficiency and high power factor. AC, e.g. line, voltage is converted into DC voltage. The high power and high efficiency are achieved by using diodes as only semiconductor devices conducting higher average currents. The correction circuit has an input and output. A rectifier network is coupled to the input for providing a pair of rectified signals. One rectified signal is applied to the output. A capacitor stores a DC voltage. A charging circuit selectively applies the other rectified signal to the capacitor. A diode applies the DC voltage to the output. A sinusoidal input current can be obtained. Inrush and surge currents are eliminated.

REFERENCES:
patent: 4405889 (1983-09-01), Overstreet et al.

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