Closed loop resonance compensation circuit for stepper motors
US4540928A · kind A · utility
11Cited by
0References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 19, 1984 |
| Grant date | Sep 10, 1985 |
| Priority date | — |
| Expiry date | Mar 19, 2004 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P8/32
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A closed loop resonance compensation method and circuit for a stepper motor stabilizes the stepper motor control system while operating in the mid-frequency range. The stepper motor stabilization method and means corrects for mid-frequency resonance errors by deriving a velocity error signal from the total current in the motor windings and uses this signal, through feedback to the source of clock pulses, to correct the short term rotor velocity with respect to the stator field.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.