Power conversion device, motor drive control device equipped with power conversion device, compressor and blower equipped with motor drive control device, and air conditioner equipped with compressor or blower
US9929670B2 · kind B2 · utility
1Cited by
2References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 26, 2014 |
| Grant date | Mar 27, 2018 |
| Priority date | — |
| Expiry date | May 26, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B70/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A power conversion device is configured to have reactors and is configured to have chopper circuit units, connected in series, that chop the output of a rectifier configured to rectify an AC voltage from an AC power supply. The power conversion device includes: an AC switch disposed on a side closer to the AC power supply than the chopper circuit units; an AC reactor that is connected in parallel to the AC switch; and a switching control unit that stops the switching of the switching elements when the contact of the AC switch is open.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.