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

Abstract

A series string of ignitrons for switching a large current at high voltage to ground. 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. 1 fig.

Inventors:
Issue Date:
OSTI Identifier:
7245378
Patent Number(s):
4232351 A
Application Number:
PPN: US 6-000740
Assignee:
Dept. of Energy, Washington, DC (United States) PTO; EDB-94-125314
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Patent
Resource Relation:
Patent File Date: 3 Jan 1979
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; IGNITRONS; TRIGGER CIRCUITS; ELECTRIC GROUNDS; SEMICONDUCTOR RESISTORS; SWITCHES; ELECTRICAL EQUIPMENT; ELECTRON TUBES; ELECTRONIC CIRCUITS; EQUIPMENT; GAS DISCHARGE TUBES; PULSE CIRCUITS; RECTIFIER TUBES; RESISTORS; SEMICONDUCTOR DEVICES; 426000* - Engineering- Components, Electron Devices & Circuits- (1990-)

Citation Formats

Baker, W.R. High-voltage crowbar circuit with cascade-triggered series ignitrons. United States: N. p., 1980. Web.
Baker, W.R. High-voltage crowbar circuit with cascade-triggered series ignitrons. United States.
Baker, W.R. Tue . "High-voltage crowbar circuit with cascade-triggered series ignitrons". United States.
@article{osti_7245378,
title = {High-voltage crowbar circuit with cascade-triggered series ignitrons},
author = {Baker, W.R.},
abstractNote = {A series string of ignitrons for switching a large current at high voltage to ground. 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. 1 fig.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1980},
month = {11}
}