Power factor correction circuit

Details Power factor correction circuit Power factor correction circuit

1994-06-20

1998-03-31

Wong, Peter S.

Electric power conversion systems

Current conversion

Including d.c.-a.c.-d.c. converter

323222, 323259, H02M 3335

Patent

active

057345627

ABSTRACT:
A power-factor-corrected switching power supply includes a power-factor-corrector cell followed by a current-fed dc/dc converter cell. Both cells operate in discontinuous current mode. A duty cycle modulator has its input coupled to the output of the current-fed dc/dc converter cell and its output coupled to the switch control inputs of both the PFC cell and the current-fed dc/dc converter cell so that both cells receive the same control signal.

REFERENCES:
patent: 5404092 (1995-04-01), Gegner
patent: 5434767 (1995-07-01), Batarseh et al.
Michael Madigan, Robert Erickson and Esam Ismail, Integrated High Quality Rectifier-Regulators, Mar. 1992, 1992 IEEE.
Milan M. Jovanovic, Dan M.C. Tsang and Fred C. Lee, Reduction of Voltage Stress in Integrated High-Quality Rectifier-Regulators by Variable-Frequency Control, Feb. 1994, 1994, IEEE.
Pre-Publication--Richard Redl, Laszlo Balogh and Nathan O. Sokal, A New Family of Single-Stage Isolated Power-Factor Correctors with Fast Regulation of the Output Voltage, (no date).

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