Motor driving control device
US6956341B2 · kind B2 · utility
5Cited by
8References
10Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Jul 28, 2003 |
| Grant date | Oct 18, 2005 |
| Priority date | — |
| Expiry date | Sep 17, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P21/22
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Two inverters (INV1, INV2) supply phase currents to three-phase coils (Y1, Y2). Although two phase currents must conventionally be measured and four current sensors are thus required, according to the present invention, the number of phase currents to be measured is reduced as a result of use of an observer for phase current estimation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.