Abstract

Recently, the use of induction-heating systems has increased, and wireless power transmission systems for electrical vehicles have also been launched. These applications are designed to operate under 100 kHz and close to electrical equipment or the human body. Therefore, it is important to discuss the effects of alternating magnetic fields and evaluate the electromagnetic interference to other equipment. This paper presents the design and implementation of a magnetic field generator used for evaluating electromagnetic interferences. The magnetic field generator consists of a single-phase inverter circuit that uses SiC-MOSFETs and an air-core inductor. The paper specifically discusses the design procedures for the coil structure and inverter circuit. The experimental results of the proposed system rated at 82 kHz and 100 A are presented.

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