Motor control circuit
US5973473A · kind A · utility
47Cited by
11References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 31, 1996 |
| Grant date | Oct 26, 1999 |
| Priority date | — |
| Expiry date | Oct 31, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P2203/09
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A control circuit that activates and deactivates a motor start winding at different motor rpm trip points provides improved accuracy in the trip points by automatically compensating for changes in motor current caused by variations in line voltage and motor winding temperature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.