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Title: High-voltage crowbar circuit with cascade-triggered series ignitrons

Patent ·
OSTI ID:5570090

A series string of ignitrons for switching a large current at high voltage to ground is discussed. Switching is initiated by means of a negative trigger pulse applied to the cathode of the lowest voltage level ignitron next to ground to draw ground current through diodes in the ignitor circuit. The trigger pulse is applied thereby to the next higher ignitron cathode and sequentially to the remainder of the ignitrons in the string through diodes in respective ignitor circuits. Full line voltage is held off of nonconducting diodes and ignitrons by means of varistors.

DOE Contract Number:
W-7405-ENG-48
Assignee:
TIC; ERA-05-021097; EDB-80-057256
OSTI ID:
5570090
Country of Publication:
United States
Language:
English