Rotor position detector with back EMF voltage estimation
US5384527A · kind A · utility
91Cited by
52References
36Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 12, 1993 |
| Grant date | Jan 24, 1995 |
| Priority date | — |
| Expiry date | May 12, 2013 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P2101/30
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A detector for detecting rotor position of a brushless generator having a motive power shaft and a main generator portion having a set of armature phase windings capable of receiving AC power and developing a back EMF voltage during operation in a starting mode, includes a circuit coupled to the set of armature phase windings and capable of responding to the AC power for producing a back EMF estimate signal representing an estimate of the back EMF voltage. The detector also includes a circuit for converting the back EMF estimate signal into an indication of the angular position of the motive power shaft.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.