Drive device for power converter and driving method of power converter
US9806594B2 · kind B2 · utility
0Cited by
9References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 2, 2011 |
| Grant date | Oct 31, 2017 |
| Priority date | — |
| Expiry date | Jan 26, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B70/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A drive device driving a power converter that includes a switching element formed from a wide bandgap semiconductor, includes a PWM-signal output unit that generates a drive signal that drives the switching element with PWM; an on-speed reducing unit that, when the switching element is changed from off to on, reduces a change rate of the drive signal; and an off-speed improving unit that, when the switching element is changed from on to off, draws charge from the switching element at a high speed and with a charge drawing performance higher than that at a time when the switching element is changed from off to on.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.