Solid state circuit interruption employing a stored charge power transistor
US4636906A · kind A · utility
11Cited by
5References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 24, 1985 |
| Grant date | Jan 13, 1987 |
| Priority date | — |
| Expiry date | Apr 24, 2005 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2009/543
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A solid state circuit interrupter utilizes a power transistor connected across a pair of separable contacts to eliminate contact arcing between the contacts upon circuit interruption. Stored charge is provided to the power transistor prior to contact separation by a separate power supply and control transistor which are immediately turned off after contact separation to turn off the power transistor upon depletion of the stored charge.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.