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

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.
Inventors:
 [1];  [2]
  1. (Danville, CA)
  2. (Livermore, CA)
Issue Date:
OSTI Identifier:
869896
Assignee:
United States of America as represented by United States (Washington, DC) LLNL
Patent Number(s):
US 5418707
Contract Number:
W-7405-ENG-48
Research Org:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Country of Publication:
United States
Language:
English
Subject:
voltage; dc-dc; converter; dynamic; regulation; decoupling; load-generated; arcs; high-power; power; supply; produces; controllable; constant; output; varying; arcing; loads; regulator; inductor; inverter; producing; frequency; square; wave; current; alternating; polarity; improved; clamping; circuit; step; transformer; rectifier; dc; module; sensor; sensing; provides; response; controlling; duty; cycle; circuitry; provided; incipient; currents; simultaneously; decouple; load; plurality; discrete; switching; type; modules; voltage regulator; converter modules; clamping circuit; dc-dc converter; voltage dc; output current; voltage output; power supply; dc voltage; duty cycle; current sensor; voltage regulation; square wave; provides dynamic; regulator duty; sensing incipient; switching type; supply circuitry; wave current; varying loads; arcing load; arcing loads; inverter voltage; output rectifier; alternating polarity; voltage clamping; discrete switching; dynamic response; frequency square; supply produces; improved inverter; high-power power; voltage clamp; /363/307/361/