Current harmonic, current form factor and power factor modificat

Details Current harmonic, current form factor and power factor modificat Current harmonic, current form factor and power factor modificat

1994-04-07

1995-07-04

Dougherty, Thomas M.

Electricity: power supply or regulation systems

For reactive power control

Using converter

323222, 323285, 363 80, 363 89, G05F 170

Patent

active

054303648

ABSTRACT:
A device for connecting in series between a source of alternating current power and a direct current load which decouples the power flow from the source to the load and thereby enables efficient modification of the current waveform supplied by the source to reduce current harmonics, improve the current form factor and improve the power factor. Particular uses for the device include battery chargers, off-line switching power supplies as used by computers, electronic ballasts for fluorescent tubes and variable speed electric motor controls.

REFERENCES:
patent: 4672300 (1987-06-01), Harper
patent: 4677366 (1987-06-01), Wilkinson et al.
patent: 4780660 (1988-10-01), Shima et al.
patent: 4845605 (1989-07-01), Steigerwald
patent: 4964029 (1990-10-01), Severinsky et al.
patent: 4974141 (1990-11-01), Severinsky et al.
patent: 5001620 (1991-03-01), Smith
patent: 5019952 (1991-05-01), Smolenski et al.
patent: 5047912 (1991-09-01), Pelly

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