Proposal of an isolated current controlled inverter

Author

Oliveira, D.S. ; Bissochi, D.S. ; Tavares, C.A. ; Vieira, Douglas ; Farias, J.B. ; Freitas, L.C.

Author_Institution

Univ. Federal de Uberlandia, Brazil

fYear

2000

fDate

2000

Firstpage

337

Lastpage

340

Abstract

A combination of a two transistor forward converter (input) and a conventional full-bridge inverter (output) with current control loop is proposed, resulting in an isolated inverter. The forward converter operates in high frequency switching through a fixed frequency hysteresis controller, making the load current modulation. Due to the forward current modulation, the full-bridge inverter switches in ZVS mode at turn on, and operates with low switching frequency (load operation frequency). In this way, IGBTs can be used, allowing a high voltage output

Keywords

DC-AC power convertors; bipolar transistor switches; bridge circuits; electric current control; insulated gate bipolar transistors; invertors; power bipolar transistors; switching circuits; ZVS mode; conventional full-bridge inverter; current control loop; fixed frequency hysteresis controller; high-frequency switching; isolated current controlled inverter; load current modulation; load operation frequency; power IGBTs; switching frequency; two transistor forward converter; Current control; Frequency conversion; Hysteresis; Insulated gate bipolar transistors; Inverters; Proposals; Switches; Switching converters; Switching frequency; Zero voltage switching;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Congress, 2000. CIEP 2000. VII IEEE International

Conference_Location

Acapulco

Print_ISBN

0-7803-6489-9

Type

conf

DOI

10.1109/CIEP.2000.891436

Filename

891436