Low distortion alternating current output active power factor co

Details Low distortion alternating current output active power factor co Low distortion alternating current output active power factor co

1993-01-05

1994-10-25

Peckman, Kristine L.

Electricity: power supply or regulation systems

For reactive power control

Using converter

363 39, 363 79, H02M 112

Patent

active

053592778

ABSTRACT:
A circuit wherein a current sensing device is incorporated in an AC input line. An AC output is taken from the output of said current sensing device, and from an other AC input line. Circuitry including a bi-directional bridge rectifier followed by a bi-directional switching regulator and an energy storage capacitor adds current to or subtracts current from the instantaneous output load current. The arrangement is such that the AC output is equal to the AC input with no regulation effect. Substantially one hundred percent efficiency results when very little power factor correction is required.

REFERENCES:
patent: 4647837 (1987-03-01), Stemmler
patent: 4651265 (1987-03-01), Stacey et al.
patent: 4677366 (1987-06-01), Wilkinson et al.
patent: 5047912 (1991-09-01), Pelly
patent: 5057990 (1991-10-01), Gulczynski
patent: 5291119 (1994-03-01), Cowett, Jr.
Micro Linear; "1990 Data Book, Semi-Standard Analog", ML4812 pp. 5-20 through 5-30, Sep. 1989.
Sola, "User's Handbook for the 57 Series"; Nov. 11, 1989, pp. 1-1 through 1-7.
Lloyd H. Dixon, Jr., "High Power Factor Preregulators for Off-Line Power Supplies"; Copyright 1988, pp. 6-1 through 6-16.

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