Motor control system having dead band control
US3950683A · kind A · utility
8Cited by
3References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 5, 1974 |
| Grant date | Apr 13, 1976 |
| Priority date | — |
| Expiry date | Jun 5, 1994 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P7/2985
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A motor control system is disclosed for use in controlling a DC motor. This system employes a high gain DC amplifier for providing command signals to a motor control circuit which, in turn, controls energization of the motor to vary the motor speed dependent upon the magnitude of a command signal. A dead band range of operation of the DC amplifier is obtained to prevent motor creeping when the motor speed signal calls for zero speed. This is achieved with a negative feedback network which is operative only over a limited range of input signals to effectively nullify the motor speed command signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.