Abstract
Using boost converter array consists of IGBTs, diodes and L-C circuits, novel repetitive impulse voltage generator was developed. In the presented circuits, high voltage pulse is generated by series-connection of capacitors and IGBTs. Therefore, the high voltage pulse is obtained by circuit configuration without any high voltage pulse transformer and high voltage DC source. Especially, the proposed circuit can operate up to several kHz and have high reliability and longer life than conventional ones. It also gives voltage balance of IGBTs automatically. So, the difference of characteristics of IGBTs and a drive signal does not cause severe problems. To verify the proposed circuit, a 2 kV and 40 A pulse generator is manufactured and tested.
Published Version
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