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High voltage dc-dc converter with dynamic voltage regulation and decoupling during load-generated arcs

Patent ·
OSTI ID:869896
 [1];  [2]
  1. Danville, CA
  2. Livermore, CA
+ Show Author Affiliations

A high-power power supply produces a controllable, constant high voltage output under varying and arcing loads. The power supply includes a voltage regulator, an inductor, an inverter for producing a high frequency square wave current of alternating polarity, an improved inverter voltage clamping circuit, a step up transformer, an output rectifier for producing a dc voltage at the output of each module, and a current sensor for sensing output current. The power supply also provides dynamic response to varying loads by controlling the voltage regulator duty cycle and circuitry is provided for sensing incipient arc currents at the output of the power supply to simultaneously decouple the power supply circuitry from the arcing load. The power supply includes a plurality of discrete switching type dc--dc converter modules.

Research Organization:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA
DOE Contract Number:
W-7405-ENG-48
Assignee:
United States of America as represented by United States (Washington, DC)
Patent Number(s):
US 5418707
OSTI ID:
869896
Country of Publication:
United States
Language:
English

References (6)

The use of saturable reactors as discharge devices for pulse generators journal May 1951
High-power pulse generation using semiconductors and magnetic cores
  • Lassiter, Edward M.; Johannessen, Paul R.; Spencer, Richard H.
  • Transactions of the American Institute of Electrical Engineers, Part I: Communication and Electronics, Vol. 79, Issue 5 https://doi.org/10.1109/TCE.1960.6367301
journal January 1960
High di/dt switching with thyristors conference January 1988
Power semiconductor devices for sub-microsecond laser pulse generation conference January 1988
Reliable, High Repetition Rate Thyratron Grid Driver Used With A Magnetic Modulator conference January 1991
Basic principles governing the design of magnetic switches report November 1980

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