Reusable fast opening switch
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United States of America Patent
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Jul 1, 1986
Grant Date -
N/A
app pub date -
Dec 21, 1983
filing date -
Dec 21, 1983
priority date (Note) -
Expired
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Abstract
A reusable fast opening switch for transferring energy, in the form of a high power pulse, from an electromagnetic storage device such as an inductor into a load. The switch is efficient, compact, fast and reusable. The switch comprises a ferromagnetic semiconductor which undergoes a fast transition between conductive and insulating states at a critical temperature and which undergoes the transition without a phase change in its crystal structure. A semiconductor such as europium rich europhous oxide, which undergoes a conductor to insulator transition when it is joule heated from its conductor state, can be used to form the switch.
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