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Journal of the Korean Institute of Illuminating and Electrical Installation Engineers

ISO Journal TitleJ Korean Inst. IIIum. Electr. Install. Eng.
Title Snubber Circuit Design of Discharge Closing Switch for Pulse of 1kV, 1kA, 12kW
Authors Min-Kyu Choi ; Seung-Ho Song ; Hong-Je Ryoo
DOI http://doi.org/10.5207/JIEIE.2022.36.6.052
Page pp.52-57
ISSN 1225-1135
Keywords Discharging closing switch; Noise; Overshoot; Pulse modulator; Snubber circuit
Abstract This paper deals with the overall structure of 1kV, 1kA, and 12kW pulse modulator and the snubber circuit design of the discharge closing switch for pulse. This high-voltage, high-current pulse modulator is used in various fields such as the field of printed electronics. However, overshoot and noise are unavoidable considerations due to the features of pulse power that instantaneously outputs high voltage and current. To reduce such overshoot and noise, a snubber circuit has been proposed. The snubber circuit consists of a resistance, capacitor, diode(RCD) and is additionally equipped with one more capacitor. Therefore, in this paper, we analyze the operational principles of the proposed snubber circuit. Finally, a waveform without overshoot and malfunction was confirmed through a pulse output experiment.