Control method and system
US8138709B2 · kind B2 · utility
4Cited by
20References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 31, 2007 |
| Grant date | Mar 20, 2012 |
| Priority date | — |
| Expiry date | Jul 9, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P23/0004
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Systems, methods, and devices are disclosed, including an induction-motor controller that has a motor controller configured to receive alternating current (AC) power with a voltage that varies generally sinusoidally and transmit the AC power during a conduction angle of a cycle of the AC power. In some embodiments, the conduction angle varies generally sinusoidally at a lower frequency than the AC power, and the motor controller may be configured to not transmit the AC power outside of the conduction angle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.