Apparatus equipped with motor and driving method for the motor
US8373374B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 2, 2010 |
| Grant date | Feb 12, 2013 |
| Priority date | — |
| Expiry date | Feb 3, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05B2219/43177
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An apparatus including a DC motor includes a driven member configured to be driven by the DC motor, and a drive control unit configured to define a plurality of predetermined phases of the DC motor as target stop phases and to cause the DC motor to make at least one rotation to perform preliminary driving that rotates the DC motor to each target stop phase by driving and stopping the DC motor, configured to acquire a difference value between the target stop phase and an actual stop phase for each target stop phase, and configured to drive the DC motor so that the driven member is repeatedly moved and stopped in the operation of the driven member and to perform control so that, based on the difference value acquired by the acquisition unit, electric power is supplied to the DC motor in a phase corresponding to a stop position of the driven member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.