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A new solid-state LC-Marx generator based on saturable pulse transformer.

Xu Chu1, Jinliang Liu1, Langning Wang1

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This study introduces a saturable pulse transformer (SPT) and LC-Marx generator system. The addition of a high-voltage silicon stack significantly boosts output voltage and reduces rise time for improved pulse generation.

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Area of Science:

  • Electrical Engineering
  • Pulsed Power Systems

Background:

  • Solid-state pulsed power systems require efficient voltage amplification and fast rise times.
  • Saturable pulse transformers (SPT) and LC-Marx generators are key components in achieving high-performance pulse generation.

Purpose of the Study:

  • To investigate the performance enhancement of an SPT LC-Marx generator using a high-voltage silicon stack.
  • To evaluate the impact of isolation inductance and charging voltage on output parameters.
  • To assess the generator's stability at repetitive frequencies.

Main Methods:

  • Experimental setup involving a six-stage LC-Marx generator coupled with an SPT.
  • Systematic variation of isolation inductance and charging voltage.
  • Integration of a high-voltage silicon stack as a replacement for isolation inductance.
  • Testing under repetitive frequency conditions.

Main Results:

  • An initial output voltage of 14.5 kV with a 720 ns rise time was achieved.
  • Replacing isolation inductance with a high-voltage silicon stack increased output voltage to 17.5 kV (5.0x charging voltage) and reduced rise time to 500 ns.
  • The generator demonstrated stable operation at 1 Hz with an output voltage of 12 kV.

Conclusions:

  • The high-voltage silicon stack effectively enhances the performance of the SPT LC-Marx generator in terms of output voltage and rise time.
  • The proposed system shows potential for stable, high-performance pulsed power applications.
  • Further optimization of components can lead to even greater improvements in pulse characteristics.