Secondary side post regulator and multiple output power supply e

Details Secondary side post regulator and multiple output power supply e Secondary side post regulator and multiple output power supply e

1998-02-25

1999-11-16

Berhane, Adolf Deneke

Electric power conversion systems

Current conversion

With condition responsive means to control the output...

363 21, H02M 7155, H02M 3335

Patent

active

059869119

ABSTRACT:
For use with a multiple output power converter, a secondary side post regulator (SSPR), a method of secondary side post regulating a multiple output power converter and a multiple output multiple output power converter employing the SSPR or the method. In one embodiment, the SSPR includes: (1) an average input current sensing circuit that senses a current flowing through a switch to be controlled in the multiple output power converter and develops therefrom an intermediate signal that is a function of an average of the current and (2) an input voltage feedforward circuit, coupled between an input of the multiple output power converter and the average input current sensing circuit, that adjusts the intermediate signal based on an input voltage of the multiple output power converter to develop a control signal that is a function of both the input voltage and the average of the current thereby to allow trailing edge control to be employed to control an output of said multiple output power converter.

REFERENCES:
patent: 5565761 (1996-10-01), Hwang
A. Capel, "Charge Controlled Conversion Principle in DC/DC Regulators Combines Dynamic Performances and Highoutput Power," 1979 IEEE, pp. 264-276.
P. Maranesi and G. Naummi, "Computer-Aided Identification of the Small-Signal Model of Power-Electronics Systems," 1991 IEEE, pp. 62-66.
Wei Tang, Fred C. Lee and raymond B. Ridley, "Charge Control: Modeling, Analysis and Design," 1993 IEEE, pp. 396-403.
W. Tand, Y.M. Jiang, G.C. Hua, F.C. Lee and I. Cohen, "Power Factor Correction With Flyback Converter Employing Charge Control," pp. 91-96.
Zheren Lai and Keyue M. Smedley, "A Family of Power-FActor-Correction Controllers," 1997 IEEE, pp. 66-73.
Wei Tang, Ching-Shan Leu and Fred C. Lee, "Charge Control For Zero-Voltage-Switching Multoresonant Converter,"1996 IEEE, pp. 270-273.

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