Circuit for simultaneous cut-off of two series connected high voltage power switches
US4540933A · kind A · utility
10Cited by
2References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 28, 1983 |
| Grant date | Sep 10, 1985 |
| Priority date | — |
| Expiry date | Oct 28, 2003 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K4/64
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A circuit arrangement comprising at least two high-voltage power switches (e.g. transistors) connected in series to a high voltage source. In order to ensure that the switches are automatically cut off substantially simultaneously, the control means of each switch comprise a delay element for delaying the cut-off signal. A comparison stage controls the delay caused by at least one delay element as a function of the difference between the voltage present at the junction point of the switches and a reference voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.