New synchronizing circuit suitable for paralleled converter system with automatic interleaving operation

Author

Kohama, Takeshi ; Endo, Gen ; Shimamori, Hiroshi ; Ninomiya, Tamotsu

Author_Institution

Dept. of Electr. Eng., Fukuoka Univ., Japan

Volume

1

fYear

2004

fDate

2004

Firstpage

647

Abstract

New synchronizing circuit with automatic interleaving operation for paralleled converter system is proposed. The synchronizing circuit automatically detects the number of converters and adjusts phases between converter modules equally. It is simple analog circuit, which is easily implemented to conventional PWM controller IC. Principle of the synchronizing circuit is introduced, and influence of nonideal circuit parameters on interleaving operation are discussed. Experimental results are given to confirm analytical results. Compensator for non right-triangle oscillator in PWM IC is proposed to achieve wide-use application.

Keywords

PWM power convertors; controllers; oscillators; power integrated circuits; synchronisation; PWM IC; PWM controller; automatic interleaving; compensator; nonideal circuit parameters; paralleled converter system; pulse width modulation; right-triangle oscillator; synchronizing circuit; Boundary conditions; DC-DC power converters; Frequency conversion; Interleaved codes; Pulse width modulation; Switching converters; Switching frequency; Topology; Transient response; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Applied Power Electronics Conference and Exposition, 2004. APEC '04. Nineteenth Annual IEEE

Print_ISBN

0-7803-8269-2

Type

conf

DOI

10.1109/APEC.2004.1295875

Filename

1295875