Adaptive current control system for a stepper motor
US7345447B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 2, 2006 |
| Grant date | Mar 18, 2008 |
| Priority date | — |
| Expiry date | May 2, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P8/16
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method and a system are disclosed for adaptively controlling a stepper motor to produce a required torque output based on selection information provided by a sensor or a user/user interface which, in combination with a selector, selects a torque-related value. The selection information provided to the selector for selecting the stepper motor torque-related value may be, for example, the size or thickness of material being handled or the number of accumulated sheets for processing. The torque-related value is predetermined through experimentation and loaded into a lookup table stored in the memory of a motion control system board. The selected torque-related value is provided to a stepper motor driver which supplies the appropriate drive signal(s) to the stepper motor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.