A new sinewave inverter with high frequency link and synchronous rectification using power MOSFETs

Author

Prakash, S. R Narayana ; Mohan, P. V Ananda ; Iyengar, B.S.R.

Author_Institution

Indian Telephone Ind. Ltd., Bangalore, India

fYear

1990

fDate

0-0 1990

Firstpage

723

Lastpage

728

Abstract

The authors present a novel topology for a single-phase PWM (pulse width modulation) inverter with sinusoidal output voltage at 50 Hz. The inverter is composed of power MOSFETs, fast recovery rectifying diodes, ferrite core transformers, and compact resonant filters tuned at 25 kHz switching frequency. It has high power-to-weight ratio, low total harmonic distortion, and good output voltage regulation for both input voltage and load current variations. The inverter is capable of operating at wide range of V/f ratios of the output voltage. The inverter can be used as a square wave inverter by giving a DC voltage as the modulating signal and commutating the relevant set of switches at the desired frequency. Inverter operation and the method of selecting power stage components are described, along with experimental results.<>

Keywords

filters; insulated gate field effect transistors; invertors; power transistors; pulse width modulation; rectifiers; transformers; 25 kHz; 50 Hz; PWM; fast recovery rectifying diodes; ferrite core transformers; harmonic distortion; high frequency link; power MOSFETs; power stage; power transistors; pulse width modulation; resonant filters; sinewave inverter; switching frequency; synchronous rectification; voltage regulation; Diodes; Ferrites; Frequency; MOSFETs; Pulse inverters; Pulse transformers; Pulse width modulation inverters; Topology; Transformer cores; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Specialists Conference, 1990. PESC '90 Record., 21st Annual IEEE

Conference_Location

San Antonio, TX, USA

Type

conf

DOI

10.1109/PESC.1990.131260

Filename

131260