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A double output pulsed high current thyratron driver.

T Reghu1, Manoj Kumar, Abrat Verma

  • 1Pulsed High Power Microwave Section, Raja Ramanna Centre for Advanced Technology, Indore, Madhya Pradesh 452013, India. traghu@rrcat.gov.in

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|December 5, 2012
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Summary
This summary is machine-generated.

A new double output pulsed high current driver was developed for high power multi-grid thyratrons. This driver successfully powers a CO(2) laser system, demonstrating its effectiveness for high-current thyratron applications.

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Area of Science:

  • * Electrical Engineering
  • * Pulsed Power Systems
  • * Laser Technology

Background:

  • * High power multi-grid thyratrons require specialized drivers for reliable operation.
  • * Existing driver technologies may not meet the demanding pulse characteristics for advanced applications.

Purpose of the Study:

  • * To design and develop a novel double output pulsed high current driver for high power multi-grid thyratrons.
  • * To characterize the driver's performance, including current, voltage, duration, delay, rate of rise, and jitter.
  • * To validate the driver's functionality in a practical application, such as powering a CO(2) laser.

Main Methods:

  • * Development of a driver circuit capable of generating specific current and voltage pulses for grid-1 and grid-2.
  • * Implementation of a simple circuit to achieve a precise 1 μs delay between the two drive pulses.
  • * Integration and testing of the driver module with a CX1575C thyratron in a pulsed power supply for a CO(2) laser.

Main Results:

  • * Generation of a 100 A, 2 μs current pulse for grid-1 and a 1200 V, 1.2 μs pulse for grid-2 with -150 V bias.
  • * Achieved a rate of voltage rise exceeding 10 kV/μs and a jitter of ±3 ns for the grid-2 pulse.
  • * Successful operation of a 50 kV thyratron switched pulsed power supply driving a multi-joule CO(2) laser at 100 Hz.

Conclusions:

  • * The developed double output pulsed high current driver meets the stringent requirements for high power multi-grid thyratrons.
  • * The driver module is versatile and can be adapted for other high current thyratron applications with minor modifications.
  • * This technology enables efficient and reliable operation of pulsed power systems for applications like high-power lasers.