Stepper motor control
US12308780B2 · kind B2 · utility
0Cited by
5References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 11, 2023 |
| Grant date | May 20, 2025 |
| Priority date | — |
| Expiry date | Nov 28, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P8/18
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A new method and circuit arrangement for operating a stepper motor in a voltage-based operating mode with a control loop over the whole operating range of speeds of a stepper motor. The method/circuit arrangement includes calculating a load angle of the stepper motor. The load angle is then used to calculate a voltage-based control signal suitable for operating a known motor driver circuit, such as a chopper, to drive the stepper motor coils. This enables improved control over the stepper motor which can improve control stability.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.