Motor controller, air compressor, air conditioner, controller of passenger conveyor and controller of conveyor
US9136788B2 · kind B2 · utility
3Cited by
5References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 16, 2009 |
| Grant date | Sep 15, 2015 |
| Priority date | — |
| Expiry date | Apr 28, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/64
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Disclosed is a motor control apparatus for controlling a synchronous motor, which includes a receiver section for receiving the value detected by a temperature sensor installed inside the synchronous motor. The synchronous motor is started up with the current fed into it, whose magnitude is changed in accordance with the temperature received by the receiver section at the time of starting up the synchronous motor. In this way, the stable startup of the synchronous motor can be guaranteed and the useful life of the semiconductor elements can also be prolonged.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.