Design of a 10 kW, 500 kHz phase-shift controlled series-resonant inverter for induction heating

Author

Grajales, L. ; Sabate, Juan A. ; Wang, K.R. ; Tabisz, W.A. ; Lee, F.C.

Author_Institution

Virginia Power Electronics Center, VA, USA

fYear

1993

fDate

2-8 Oct 1993

Firstpage

843

Abstract

A phase-shift-controlled series-resonant inverter is used as power supply for a 10 kW, 500 kHz induction heating system. Analysis of the system for power regulation with zero voltage switching is presented, including the effect of MOSFET output capacitance. A control scheme is proposed to ensure switch turn-on with zero-voltage for all load conditions. The switching frequency is kept as close as possible to resonance to maintain near-minimal circulating energy. A prototype power supply was built and tested at 10 kW

Keywords

circuit resonance; insulated gate field effect transistors; invertors; phase control; power supplies to apparatus; power transistors; semiconductor switches; switching circuits; 10 kW; 500 kHz; MOSFET; ZVS; induction heating; output capacitance; phase shift control; power supply; power transistors; resonance; series-resonant inverter; switch turn-on; switching frequency; zero voltage switching; Capacitance; Inverters; MOSFET circuits; Power MOSFET; Power supplies; Prototypes; Resonance; Switches; Switching frequency; Zero voltage switching;

fLanguage

English

Publisher

ieee

Conference_Titel

Industry Applications Society Annual Meeting, 1993., Conference Record of the 1993 IEEE

Conference_Location

Toronto, Ont.

Print_ISBN

0-7803-1462-X

Type

conf

DOI

10.1109/IAS.1993.298997

Filename

298997