Charge control for zero-voltage-switching multiresonant converter

Author

Tang, Wei ; Leu, Ching-Shan ; Lee, Fred C.

Author_Institution

AT&T Bell Labs., Mesquite, TX, USA

Volume

11

Issue

2

fYear

1996

fDate

3/1/1996 12:00:00 AM

Firstpage

270

Lastpage

274

Abstract

The operation of zero-voltage-switching multi-resonant power converters (ZVSMRCs) limits the use of peak current-mode control. The charge control technique is found applicable to ZVSMRCs for improving dynamic performance. Charge control compares the total charge of the switch current to the control voltage to modulate the switching frequency. Since the charge of the switch current of the forward ZVSMRCs is proportional to the input voltage, charge control provides a fast inner loop and offers excellent transient response. Charge control also provides the possibility to achieve current sharing for ZVSMRC parallel applications

Keywords

control system analysis; control system synthesis; electric current control; resonant power convertors; switching circuits; transient response; ZVS; charge control technique; control design; control voltage; current sharing; dynamic performance; fast inner loop; multi-resonant power converter; parallel applications; peak current-mode control; switch current total charge; switching frequency modulation; transient response; zero-voltage-switching; Circuits; Filters; Frequency modulation; Inductors; Pulse amplifiers; Pulse width modulation converters; Switches; Switching converters; Voltage control; Voltage-controlled oscillators;

fLanguage

English

Journal_Title

Power Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0885-8993

Type

jour

DOI

10.1109/63.486175

Filename

486175