Design of a low pulse high current series topology for EDM system

Yu-Kai Chen; Min-Feng Lee; Yung-Chun Wu; Chau-Chung Songa; Jui-Yang Chiu

doi:10.57417/jaalr.1.2_65

Yu-Kai Chen , Min-Feng Lee, Yung-Chun Wu, Chau-Chung Songa, Jui-Yang Chiu

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Keywords: Electric discharge machining (EDM), LLC, Resonant converter, Frequency control, Sic-MOSFET

JOURNAL OPEN ACCESS

2020 Volume 1 Issue 2 Pages 65-70

DOI https://doi.org/10.57417/jaalr.1.2_65

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Abstract

The design of the LLC resonant converter is presented for use in Electric discharge machining (EDM) applications. The converter is designed to operate with a 3phase ac input voltage and will output controlled dc voltages during the striking and arc conditions of EDM process. The method of the LLC resonant converter can operate at zero voltage and zero current transitions, we change the output current and control the current waveform of the EDM.

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