Rotation phase control device
US5335189A · kind A · utility
9Cited by
11References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 3, 1992 |
| Grant date | Aug 2, 1994 |
| Priority date | — |
| Expiry date | Jun 3, 2012 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P23/186
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In a rotation phase control device which forms phase control information by carrying out at least an integrating process on phase error information obtained according to a phase difference between a rotation phase detection signal indicating the rotation phase of a rotary body and a reference signal, the phase control information is temporarily invalidated when the phase difference becomes a value within a given range.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.