Motor driving control device and motor driving control method
US10236804B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 19, 2018 |
| Grant date | Mar 19, 2019 |
| Priority date | — |
| Expiry date | Feb 19, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P6/17
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The control circuit includes a current detecting part detecting a driving current of the motor, a set duty generating part generating a set duty for outputting the driving control signal based on the speed command information and the actual rotational frequency information, a limit value determining part determining a current limit value based on the set duty and an instructed duty corresponding to the speed command information and a limiting part limiting the driving current of the motor based on the driving current of the motor detected by the current detecting part and the current limit value determined by the limit value determining part.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.