Motor control apparatus and method
US6747426B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 22, 2003 |
| Grant date | Jun 8, 2004 |
| Priority date | — |
| Expiry date | Apr 22, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P23/26
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A motor control apparatus has a motor driver for driving a motor in accordance with an input of digital-format drive data of a predetermined length, thereby driving a mechanism using the motor as a power source. The drive data, which has been made to correspond to a plurality of drive patterns, is stored in a memory, part of the drive data, which has been read out from the memory by DMA, is replaced with other data, and the resultant data is output to the motor driver. Thus, different drive data can be generated by replacing a part of the drive data stored in the memory with other data, and the generated data can be transferred to the motor driver. This makes it possible to reduce the memory capacity needed for motor control.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.