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New advances in solid-state pulse generator based on magnetic switches.

Qi Yuan1, Zichen Deng1, Weidong Ding1

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This review covers advancements in pulsed power generators using magnetic switches (MSs). It details MS working principles, applications, and various generator circuit topologies for enhanced performance.

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Area of Science:

  • Electrical Engineering
  • Pulsed Power Systems
  • Solid-State Electronics

Background:

  • Pulsed power technology is increasingly vital, driven by civil-military integration.
  • This trend necessitates advanced pulsed power generators with higher performance.
  • Magnetic switches (MSs) are key components in developing these generators.

Purpose of the Study:

  • To review recent progress in pulse generators utilizing magnetic switches (MSs).
  • To analyze the working mechanism and applications of MSs.
  • To discuss typical circuit topologies and future trends in MS-based solid-state pulse generators.

Main Methods:

  • Analysis of the magnetic switch "rapid inductance drop after magnetic core saturation" working principle.
  • Introduction to basic MS applications: magnetic compression units, saturated pulse transformers, and magnetic delay switches.
  • Discussion of typical pulse generator topologies: transmission line, Marx, Fitch, linear transformer driver, and semiconductor opening switch pumping circuits.

Main Results:

  • Detailed explanation of MS operation and its role in pulse generation.
  • Overview of diverse MS applications and their impact on generator design.
  • Comparative analysis of different MS-based pulse generator circuits, highlighting technical characteristics and parameter levels.

Conclusions:

  • Magnetic switches are crucial for the development of advanced pulsed power generators.
  • Understanding MS mechanisms and circuit topologies is essential for future innovations.
  • Future research should focus on overcoming existing challenges in MS-based solid-state pulse generators.