Power factor correction precompensation circuit

Details Power factor correction precompensation circuit Power factor correction precompensation circuit

1994-01-31

1995-10-24

Wong, Peter S.

Electricity: power supply or regulation systems

In shunt with source or load

Using choke and switch across source

323209, 323303, G05F 1652

Patent

active

054613035

ABSTRACT:
An embodiment of the present invention is a boost preregulator circuit which includes a bridge rectifier, an inductor, a boost diode and an output capacitor. A power transistor is switched on and off across a junction of the boost inductor and boost rectifier according to a variable duty cycle. Proper variation of the duty cycle results in a power factor corrected AC line current waveform with an in-phase sinusoidal shape.

REFERENCES:
patent: 5161097 (1992-11-01), Ikeda
patent: 5282107 (1994-01-01), Balakrishnan
patent: 5367247 (1994-11-01), Blocher et al.

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