Class-E DC/DC converters with a capacitive impedance inverter

Author

Kazimierczuk, Marian K. ; Bui, Xung T.

Author_Institution

Dept. of Electr. Eng., Wright State Univ., Dayton, OH, USA

Volume

36

Issue

3

fYear

1989

fDate

8/1/1989 12:00:00 AM

Firstpage

425

Lastpage

433

Abstract

Analysis and design rules are presented for three class-E switching-mode DC/DC power converters, each with a capacitive impedance inverter. Experimental results are given for one of the converters. A zero-voltage switching technique is achieved for both class-E inverters and rectifiers. Therefore, the efficiency of the converters is very high at switching frequencies in the megahertz range. By applying a capacitive impedance inverter, lossless operation of the class-E inverter can be obtained for a wide range of converter load resistance, from full load to infinity. Experimental results are in excellent agreement with the theoretical calculations. Only a 12% relative bandwidth of the switching frequency is required to maintain a constant DC output voltage for the load resistance from full load to infinity at about 1 MHz with 15-W output

Keywords

invertors; power convertors; switching; 1 MHz; 15 W; capacitive impedance inverter; class-E switching-mode DC/DC power converters; load resistance; rectifiers; zero-voltage switching technique; Circuits; DC-DC power converters; Diodes; H infinity control; Impedance; Inverters; Rectifiers; Switching converters; Switching frequency; Zero voltage switching;

fLanguage

English

Journal_Title

Industrial Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0278-0046

Type

jour

DOI

10.1109/41.31506

Filename

31506