System and method for reducing power losses by gating an active

Details System and method for reducing power losses by gating an active System and method for reducing power losses by gating an active

1997-01-21

1999-09-28

Ray, Gopal C.

Electric power conversion systems

Phase conversion without intermediate conversion to d.c.

By dynamoelectric machine converter

39575005, 363 98, G06F 126

Patent

active

059602074

ABSTRACT:
A power supply includes a power factor correction converter and a controller that disables a power factor correction converter when the power supply is operating in a low power mode, when the power factor correction converter is not needed. The controller of the power factor correction converter performs control operations as directed by a control program executing in a computer or processor in some embodiments. In other embodiments, the control operations are directed by an automatic sequence self-directed by a state machine or other sequencer according to a self-analysis.

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Unitrode Integrated Circuits, "High Power Factor Preregulator", pp. 6-287-6-294, Oct. 1994.
W. Shepherd and P. Zand, "Energy Flow And Power Factor In Nonsinusoidal Circuits", Cambridge University Press, pp. 1-77.
Arnold Hagiwara, Pioneer Magnetics, Santa Monica, CA, "Power Factor Correction For European Use".
PQTN Brief, "Harmonic Filter for Personal Computers: Passive, Parallel-Connected Series Resonant", EPRI Power Electronics Applications Center, Brief No. 1, Jun. 1992.
PQTN Brief, "Harmonic Filter for Personal Computers: Passive, Series-Connected, Parallel Resonant", EPRI Power Electronics Applications Center, Brief No. 5, Oct., 1992.
PQTN Brief, "Harmonic Filter for Personal Computers: Active Boost Converter", EPRI Power Electronics Applications Center, Brief No. 6, Nov. 1992.

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