Low voltage drop, cross-field, gas switch and method of operation

A gas switch and switch technology, which is applied to electrical components, waveguide switches/modulation tubes, circuits, etc., can solve large-scale and long-term impracticable problems

Pending Publication Date: 2019-07-09
GENERAL ELECTRIC CO +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, conventional gas switches are often not feasible for large-scale, long-term implementation in power systems where reliability, cost, and life cycle are important considerations

Method used

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  • Low voltage drop, cross-field, gas switch and method of operation
  • Low voltage drop, cross-field, gas switch and method of operation
  • Low voltage drop, cross-field, gas switch and method of operation

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Embodiment Construction

[0091] In the following specification and claims, reference will be made to various terms which shall be defined to have the following meanings.

[0092] The singular forms "a", "an" and "the" include plural reference unless the context clearly dictates otherwise.

[0093] "Optional" or "optionally" means that the subsequently described event or circumstance can or cannot occur, and that the description includes instances where the event occurs and instances where it does not.

[0094] Approximate language, as used herein throughout the specification and claims, may be applied to modify any quantitative expression that is permissible to vary without resulting in a change in the basic function to which it relates. Accordingly, a value modified by a term or terms, such as "about" and "approximately," is not to be limited to the precise value specified. In at least some cases, the approximate language may correspond to the precision of the instrument used to measure the value. ...

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PUM

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Abstract

A gas switch includes an anode and a cathode spaced apart from the anode, wherein the cathode includes a conduction surface. The gas switch also includes a plurality of magnets arranged to generate amagnetic field that defines an annular path over a portion of the conduction surface at a radial distance from a switch axis, and a control grid positioned between the anode and the cathode. In operation, the control grid is arranged to establish a conducting plasma between the anode and the cathode, wherein, in the presence of the conducting plasma, a voltage drop between the anode and the cathode is less than 150 volts, and wherein the conducting plasma forms a cathode spot that circles the annular path.

Description

[0001] Statement on Federal Funding for Research and Development [0002] This invention was made with government support under Contract No. DE-AR0000298 awarded by the Energy Advanced Research Projects Agency, Department of Energy. The government has certain rights in this invention. technical field [0003] The field of the present disclosure relates generally to low voltage drop cross-field gas switches, and more particularly to cross-field gas switches that experience low forward voltage drops between the anode and cathode of the gas switch during operation thereof. Background technique [0004] Cross-field gas switches, such as planar cross-field gas switches, are known. Conventionally, these switches include an electrode assembly enclosed by an airtight chamber, such as a cathode spaced from the anode. The airtight chamber is filled with an ionizable gas, and a voltage is applied to a control grid disposed between the anode and cathode to induce a plasma path betwee...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01J37/32
CPCH01J37/32431H01J37/32532H01T2/02H01J17/14H01J17/44H01J17/64H01J17/00
Inventor T.J.索默雷尔D.J.史密斯J.D.迈克尔S.C.阿塞托K.E.马夸J.F.特罗特J.E.劳勒W.N.G.希彻恩
Owner GENERAL ELECTRIC CO
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