Adaptive digitally controlled motor drive system and method
US4749927A · kind A · utility
28Cited by
18References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 11, 1986 |
| Grant date | Jun 7, 1988 |
| Priority date | — |
| Expiry date | Apr 11, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S388/912
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A digitally controlled motor drive system using a pulse width modulated motor drive receives a desired motor velocity signal and an actual motor velocity signal and it provides a corresponding velocity error signal. The velocity error signal is adjusted in response to a change in the value of a power voltage supplied to the motor. The velocity error signal may be compensated for back electromotive force and/or for static friction in the motor, if desired. The system is simple, reliable and cost effective.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.