Gate circuit
US6271708A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 5, 1999 |
| Grant date | Aug 7, 2001 |
| Priority date | — |
| Expiry date | Aug 5, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K17/567
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
In a gate circuit having a turn-off gate circuit composed of: OFF gate power source E.sub.off of which one terminal is connected to the emitter of semiconductor switching element 81, and switch SW.sub.off that connects the other terminal of OFF gate power source E.sub.off and the gate of semiconductor switching element S1 via resistor R.sub.g, the gate circuit is provided with second switch SW.sub.off 2 that connects the other terminal of OFF gate power source E.sub.off and the gate of semiconductor switching element S1. By closing second switch SW.sub.off 2 at the timing at which the turn-off operation is completed, it will connect to OFF gate power source E.sub.off without passing through a resistor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.