Control circuit for two speed motors
US5892349A · kind A · utility
44Cited by
21References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 29, 1996 |
| Grant date | Apr 6, 1999 |
| Priority date | — |
| Expiry date | Oct 29, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P25/04
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A control circuit for an electric motor having start, low speed and high speed windings reactivates the start winding at different reduced motor speeds depending upon whether the motor is running on the low speed winding or the high speed winding. Reactivation of the start winding while the motor is running on the low speed winding automatically deactivates the low speed winding and activates the high speed winding.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.