Direct current motor speed control apparatus
US3950684A · kind A · utility
27Cited by
6References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 29, 1974 |
| Grant date | Apr 13, 1976 |
| Priority date | — |
| Expiry date | May 29, 1994 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S388/917
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A direct current motor speed control apparatus is disclosed for controlling the motor speed from zero to base speed primarily by an armature voltage control and for controlling the motor speed from base speed to a rated run speed primarily by field flux control.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.