Pilot circuit with integrated circuit with preset firing delay for MOS power transistors
US4956570A · kind A · utility
1Cited by
1References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 21, 1988 |
| Grant date | Sep 11, 1990 |
| Priority date | — |
| Expiry date | Dec 21, 2008 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K17/284
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
The pilot circuit comprises an R-C network consisting of a condenser inserted between a gate terminal of the MOS transistor and ground and a resistance for charging said condenser. In parallel with the resistance there is placed an SCR circuit with associated threshold circuit which permits firing of the SCR circuit when the charge voltage of the condenser reaches a preset threshold.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.