Power factor correction converter using delay control

Author

Kyu-Chan Lee ; Hang-Seok Choi ; Bo Hyung Cho

Author_Institution

Dept. of Electr. Eng., Seoul Nat. Univ., South Korea

Volume

15

Issue

4

fYear

2000

fDate

7/1/2000 12:00:00 AM

Firstpage

626

Lastpage

633

Abstract

A low cost universal input voltage single-controller power factor correction converter for a 200 W power supply is proposed. It consists of the PFC part followed by a DC-DC converter as in a conventional two-stage scheme. However a single PWM controller is used as in a single-stage PFC scheme. The switch in the PFC part is synchronized with the switch in the DC-DC converter and has a fixed frequency. Employing an adaptive delay scheme, the PPC switch is controlled to limit the capacitor voltage within a desired range for optimum efficiency and to reduce input current harmonic distortion. The design procedures of the delay scheme, the feedback loop, and experimented results are presented to verify the performance.

Keywords

DC-DC power convertors; PWM power convertors; capacitors; feedback; harmonic distortion; harmonics suppression; power conversion harmonics; power factor correction; power supplies to apparatus; voltage control; 200 W; PWM controller; adaptive delay scheme; capacitor voltage limiting; delay control; feedback loop; input current harmonic distortion reduction; input voltage single-controller PFC converter; power factor correction converter; power supply; synchronize switch; Costs; DC-DC power converters; Delay; Frequency synchronization; Power factor correction; Power supplies; Pulse width modulation; Switches; Switching converters; Voltage;

fLanguage

English

Journal_Title

Power Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0885-8993

Type

jour

DOI

10.1109/63.849032

Filename

849032