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Note: A novel method for generating multichannel quasi-square-wave pulses.

C Mao1, X Zou1, X Wang1

  • 1Department of Electrical Engineering, Tsinghua University, Beijing 100084, China.

The Review of Scientific Instruments
|September 3, 2015
PubMed
Summary
This summary is machine-generated.

A novel 21-channel nanosecond pulse generator creates identical quasi-square-wave pulses. This high-voltage pulse generator offers simultaneous or delayed output modes for diverse applications.

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Area of Science:

  • Electrical Engineering
  • Pulse Power Systems

Background:

  • High-voltage nanosecond pulse generation is crucial for various scientific and industrial applications.
  • Existing pulse generators may lack multi-channel capabilities or precise waveform control.

Purpose of the Study:

  • To design and construct a 21-channel nanosecond pulse generator capable of producing identical quasi-square-wave pulses.
  • To enable both simultaneous and delay modes of pulse output.

Main Methods:

  • A high-voltage square-wave pulser was developed using an electromagnetic relay switch and a 50-Ω polyethylene cable pulse-forming line.
  • A specialized resistor-cable network was engineered as a channel divider to split the primary pulse.
  • The generator was configured for both simultaneous and delay modes by adjusting channel cable lengths.

Main Results:

  • The generator successfully produced a 1070 V, 10-ns square-wave pulse from the pulser.
  • The channel divider created 21 identical 10-ns quasi-square-wave pulses, each with an amplitude of 51 V (1070 V/21).
  • Both simultaneous and delay pulse output modes were demonstrated.

Conclusions:

  • A functional 21-channel quasi-square-wave nanosecond pulse generator was successfully constructed.
  • The designed generator provides precise pulse division and flexible operational modes.
  • This development offers a versatile tool for applications requiring synchronized or time-delayed high-voltage nanosecond pulses.