Speed control systems of synchronous motors
US4384242A · kind A · utility
13Cited by
6References
8Claims
0Family size
Assignees
Inventor
Key dates
| Filing date | Jun 3, 1981 |
| Grant date | May 17, 1983 |
| Priority date | — |
| Expiry date | Jun 3, 2001 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P25/024
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In a speed control system of a synchronous motor, a pulse modulated signal containing a signal representing rotational angle of the motor is formed to control the speed. The pulse modulated signal is passed through a synchronous rectifier to obtain currents supplied to stator windings of the motor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.