Hybrid drive circuit for variable speed induction motor
US9800188B2 · kind B2 · utility
15Cited by
38References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 15, 2015 |
| Grant date | Oct 24, 2017 |
| Priority date | — |
| Expiry date | Oct 21, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P27/08
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Hybrid motor drive circuits configured to drive a motor are provided herein. A hybrid motor drive circuit includes an inverter coupled to the motor and configured to drive the motor when a motor commanded frequency is not within a predetermined range of line input power frequencies. The hybrid motor drive circuit also includes a first switch device configured to couple line input power to an output of the inverter when the motor commanded frequency is within the predetermined range of line input power frequencies.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.