High-power pulse generator with flexible output pattern

Sungwoo Bae, Alexis Kwasinski, Mark M. Flynn, Robert E. Hebner

Research output: Contribution to journalArticle

39 Scopus citations

Abstract

This paper presents a high-voltage bipolar rectangular pulse generator using a solid-state boosting front-end and an H-bridge output stage. The topology generates rectangular pulses with fast enough rise time and allows easy step-up input voltage. In addition, the circuit is able to adjust positive or negative pulsewidth, dead time between two pulses, and operating frequency. The topology can also be controlled to produce unipolar pulses and other pulse patterns without changing its configuration. With an appropriate dc source, the output voltage can also be adjusted to requirements of different applications. The intended application for such a circuit is algal cell membrane rupture for oil extraction, although additional applications, include biotechnology and plasma sciences, medicine, and food industry. A 1 kV/200 A bipolar solid-state pulse generator was fabricated to validate the theoretical analysis presented in this paper. In addition, to validate the analysis with simulations and prototype tests, biological test were conducted in order to examine the technical value of the proposed circuit. These evaluations seem to suggest that oil production rate from bipolar pulses may double that of an equivalent process with unipolar pulses.

Original languageEnglish
Article number5393088
Pages (from-to)1675-1684
Number of pages10
JournalIEEE Transactions on Power Electronics
Volume25
Issue number7
DOIs
StatePublished - 2010 Dec 1

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Keywords

  • Marx generators
  • power electronics
  • pulse circuits
  • pulse generation
  • pulse shaping circuits

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