High coulombic switch gas discharge device
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United States of America Patent
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Apr 11, 2000
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N/A
app pub date -
Aug 4, 1997
filing date -
Feb 8, 1995
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Abstract
A device suitable for switching large currents includes, within a gas filled envelope, an anode, electrodes and a thermionic cathode. Initially the device holds off a voltage until a triggering pulse is applied to an electrode. This cause an electron current to be established between the thermionic cathode and the anode. When the current reaches a sufficiently large value further conduction through the device occurs via current drawn from the surface of the electrode in a cold cathode mode, bypassing the cathode.
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