Motor driving apparatus, refrigeration cycle system, air conditioner, water heater, and refrigerator
US11329587B2 · kind B2 · utility
1Cited by
1References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 19, 2018 |
| Grant date | May 10, 2022 |
| Priority date | — |
| Expiry date | Dec 19, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B30/70
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The motor driving apparatus includes a switch that is a mechanical switch for changing coil connection states of a motor; an inverter that generates alternating voltage from direct voltage and outputs the alternating voltage to the motor; and a control device that controls the switch and the inverter. The control device causes the switch to change the coil connection states while the alternating voltage output from the inverter is zero.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.