Reusable fast opening switch
US4598338A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 21, 1983 |
| Grant date | Jul 1, 1986 |
| Priority date | — |
| Expiry date | Dec 21, 2003 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10N70/00
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.