Open-ended control circuit for electrical apparatus
US8169179B2 · kind B2 · utility
22Cited by
28References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 22, 2007 |
| Grant date | May 1, 2012 |
| Priority date | — |
| Expiry date | Sep 21, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M7/53876
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An AC machine control system for an AC machine (motor, generator, transformer, etc.) having open-ended windings, the control system comprising a drive circuit configured to transfer AC power between a first set of voltages and each end of the open-ended windings without the use of a substantial energy storage device, while eliminating common mode voltage and/or injecting zero sequence voltages.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.