Semiconductor power converting apparatus
US6380796B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 20, 2001 |
| Grant date | Apr 30, 2002 |
| Priority date | — |
| Expiry date | Apr 20, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K17/166
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A semiconductor power converting apparatus includes a semiconductor element for controlling a current flowing between a collector and an emitter in response to a gate condition, a driving device connected to the gate, for driving the gate in response to a drive signal entered thereinto, a voltage applying device for applying both a forward bias and a reverse bias to the gate so as to set the emitter of the semiconductor element to a neutral potential, and a voltage dividing device for dividing a voltage appearing between the collector and the emitter of the semiconductor element, in which the drive signal is under OFF state, a voltage produced based upon the divided voltage by the voltage dividing device is applied to the gate, and the gate voltage is controlled in response to the voltage appearing between the collector and the emitter of the semiconductor element, thereby reducing the snubbed loss.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.