Power conversion apparatus
US8587279B2 · kind B2 · utility
9Cited by
5References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 1, 2012 |
| Grant date | Nov 19, 2013 |
| Priority date | — |
| Expiry date | Jun 2, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B70/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A power conversion apparatus includes main circuits, in which switching elements are connected in parallel with diodes, respectively. An auxiliary circuit, which is formed of a series-connected second switching element and a capacitor, is connected in parallel with the diode operating as a freewheeling diode. The switching element of the main circuit, which is opposite to the auxiliary circuit, is set to turn on at a reference time. The second switching element of the auxiliary circuit is set to turn on in advance of the reference time by an interval of a discharging time period of the capacitor in a dead time period.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.