New control scheme for class DE inverter by varying driving signals

Author

Sekiya, Hiroo ; Matsuo, Mitsuhiro ; Koizumi, Hirotaka ; Mori, Shinsaku ; Sasase, Iwao

Author_Institution

Dept. of Inf. & Comput. Sci., Keio Univ., Yokohama, Japan

Volume

47

Issue

6

fYear

2000

fDate

12/1/2000 12:00:00 AM

Firstpage

1237

Lastpage

1248

Abstract

A new control scheme for the class DE inverter is presented. This method generates the output voltage and power by varying driving signals which turn switches on and off. The advantages of the proposed scheme are the improvement of the power conversion efficiency for low output voltage, the operation at fixed operating frequency, unneccessity of enlargement of the circuit scale, and suitability for controlling the wide output range. An exact analysis and circuit experiments are carried out. It is shown that the experimental results are very similar to the theoretical predictions qualitatively. Measured efficiency is over 93% with 1.0-MHz 1.8-W output.

Keywords

invertors; power control; switching circuits; 1 MHz; 1.8 W; 93 percent; class DE inverter; class E switching conditions; control scheme; driving signals; driving signals variation; efficiency measurement; fixed operating frequency operation; low output voltage; output power generation; output voltage generation; power control; power conversion efficiency improvement; Circuits; Electric variables control; Electromagnetic interference; Frequency modulation; Inverters; Magnetic variables control; Power conversion; Switches; Switching frequency; Zero voltage switching;

fLanguage

English

Journal_Title

Industrial Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0278-0046

Type

jour

DOI

10.1109/41.887951

Filename

887951