Title: Systematic design framework for a WBG-based high-frequency domestic induction heater for cooking application

Authors: Tumpa Das; Molay Roy

Addresses: Department of Electrical and Electronics Engineering, National Institute of Technology, Ravangla, Namchi, Sikkim, 737139, India ' Department of Electrical and Electronics Engineering, National Institute of Technology, Ravangla, Namchi, Sikkim, 737139, India

Abstract: In domestic induction heating (IH) technology for cooking applications, high-frequency operation enhances surface heat on vessels by reducing skin depth. The emergence of WBG devices like SiC MOSFETs allows power converters to function at high frequencies due to their low switching and conduction losses, short reverse recovery time, and high temperature tolerance. This paper discusses the design and experimental validation of a laboratory-fabricated SiC-based full-bridge series resonant inverter (SRI) and coil for heating a cast-iron pan. Operating at 94 kHz and 174 W input power, the inverter is experimentally validated to operate at resonance with minimal load impedance and 98% efficiency. During tests, the pan's temperature rises from 32°C to 110°C in 6 minutes and 20 seconds at resonance, compared to 7 minutes and 30 seconds above resonance (i.e., 98kHz). WBG converters reduce cost, overall volume, and thermal management, collectively contributing to miniaturisation and increasing system efficiency and reliability.

Keywords: induction heating; IH; wide band gap; WBG; power electronic converters; PEC; series resonant inverter; SRI; silicon carbide; SiC; full-bridge; TEXAS TMS320F28379D; SCT20N120; high frequency; domestic IH.

DOI: 10.1504/IJPELEC.2026.155047

International Journal of Power Electronics, 2026 Vol.22 No.4, pp.455 - 472

Received: 25 Feb 2025
Accepted: 23 Aug 2025
Published online: 24 Jul 2026 *

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