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U.S. Department of Energy
Office of Scientific and Technical Information

Reusable fast opening switch

Patent ·
OSTI ID:6893196

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 metallic 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.

DOE Contract Number:
AC04-76DP00789
Assignee:
Dept. of Energy
Patent Number(s):
None
Application Number:
ON: DE84014316
OSTI ID:
6893196
Country of Publication:
United States
Language:
English