Electric power conversion device and surge voltage suppressing method
US9124270B2 · kind B2 · utility
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1References
12Claims
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Assignee
Inventors
Key dates
| Filing date | Mar 31, 2010 |
| Grant date | Sep 1, 2015 |
| Priority date | — |
| Expiry date | Apr 14, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B70/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
To provide an electric power conversion device that converts direct current power supplied from a direct-current power supply into alternating current power, the electric power conversion device includes six switching elements constituted by a voltage-driven transistor that uses a wide bandgap semiconductor and a diode, and a drive circuit that controls a voltage for driving the transistor at a time of turning off the switching elements based on a predetermined voltage profile specifying that the transistor is operated in a non-linear region.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.