System for controlling stepping motor for dividing a single step of the motor into plural sections and applying voltages whose levels are determined in accordance with the sections
US5841261A · kind A · utility
52Cited by
7References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 3, 1995 |
| Grant date | Nov 24, 1998 |
| Priority date | — |
| Expiry date | Nov 3, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P8/165
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A system for smoothly driving a stepping motor with constant currents. For that purpose, a voltage level setting circuit forms various combinations of voltage levels for a first phase and voltage levels for a second phase. Drive currents of the stepping motor are determined using the various combinations for a plurality of times during one step drive of the stepping motor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.