| 发明名称 |
DRIVE CONTROLLER, IMAGE PICKUP APPARATUS, DRIVE CONTROL METHOD, AND STORAGE MEDIUM |
| 摘要 |
A drive controller includes a stepping motor capable of performing micro-step drive of a predetermined number of divisions by using an excitation current having a sine waveform, and a control unit configured to calculate a first drive pulse of the stepping motor to perform the micro-step drive, and the control unit is configured to change the first drive pulse to a second drive pulse depending on a ratio of a step phase of a predetermined phase region included in a range of the micro-step drive when performing the micro-step drive with the first drive pulse in a wobbling operation. |
| 申请公布号 |
US2014341554(A1) |
申请公布日期 |
2014.11.20 |
| 申请号 |
US201414279770 |
申请日期 |
2014.05.16 |
| 申请人 |
CANON KABUSHIKI KAISHA |
发明人 |
Sato Koji |
| 分类号 |
H02P8/22;G03B3/10 |
主分类号 |
H02P8/22 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A drive controller comprising:
a stepping motor capable of performing micro-step drive of a predetermined number of divisions by using an excitation current having a sine waveform; and a control unit configured to calculate a first drive pulse of the stepping motor to perform the micro-step drive, wherein the control unit is configured to change the first drive pulse to a second drive pulse depending on a ratio of a step phase of a predetermined phase region included in a range of the micro-step drive when performing the micro-step drive with the first drive pulse in a wobbling operation. |
| 地址 |
Tokyo JP |
