Current mode controller for continuous conduction mode power fac

Details Current mode controller for continuous conduction mode power fac Current mode controller for continuous conduction mode power fac

1997-08-01

1999-06-15

Nguyen, Matthew

Electricity: power supply or regulation systems

For reactive power control

Using converter

G05F 170

Patent

active

059125497

ABSTRACT:
For use with a power factor correction circuit, a current mode controller, a method of operating current mode control to achieve power factor correction thereof and a power supply incorporating the controller or the method. In one embodiment, the controller includes: (1) a modulator, coupled to a switch in the power factor correction circuit, that senses an electrical characteristic and a current passing through the power factor correction circuit and provides, in response thereto, a control signal to the switch and (2) a compensation circuit, coupled to an input of the power factor correction circuit, that provides a compensation signal to the modulator that is a function of a rectified line voltage provided to the input of the power factor correction circuit. The compensation signal causes the modulator to modify the control signal to reduce a total harmonic distortion (THD) of the power factor correction circuit.

REFERENCES:
patent: 4119907 (1978-10-01), Quinn
patent: 5568041 (1996-10-01), Hesterman
patent: 5687070 (1997-11-01), Jacobs
patent: 5734562 (1998-03-01), Redl
Publication entitled "An Overview of Power Factor Correction in Single-Phase Off-Line Power Supply Systems" by J. Sebastian, M. Jaureguizar and J. Uceda; 1994 IEEE; pp. 1688-1693.
Les Hadley, Power Factor Correction Using A Preregulating Boost Converter, Oct. 1989 Proceedings, (pp. 376-382).
Richard Redl, Reducing Distortion in Boost Rectifiers with Automatic Control, 1997 IEEE, (pp. 74-80).
Joel P Gegner, C.Q. Lee, Linear Peak Current Mode Control: A Simple Active Power Factor Correction Control Technique For Continuous Conduction Mode, Proceedings of PESC 1996, (pp. 196-202).
Jeffrey Hwang, Alland Chee, Wing-Hung Ki, New Universal Control Methods for Power Factor Correction and DC to DC Converter Applications, 1997 IEEE (pp. 59-65).
Zheren Lai and Keyue M. Smedley, A Family of Power-Factor-Correction Controllers, 1997 IEEE, (pp. 66-73).
Jay Rajagopalan, Fred C. Lee and Paolo Nora, A Generalized Technique for Derivation of Linear Average Current Mode Control Laws for Power Factor Correction without Input Voltage Sensing, VPEC Seminar Proceedings-Sep. 19-21, 1996 (pp. 23-28).
Dragan Maksimovic, Yungtaek Jang and Robert Erickson, Nonlinear-Carrier Control for High Power Factor Boost Rectifiers, Proceedings of APEC 1995 IEEE (pp. 635-641).
Zheren Lai and Keyue M. Smedley, A General constant Frequency Pulse-Width Modulator and Its Applications, HFPC Power Conversion-Sep. 1996 Proceedings (pp. 279-290).

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