| 发明名称 |
MOTOR DRIVER APPARATUS AND METHOD OF CONTROLLING THE SAME |
| 摘要 |
A motor driver apparatus that is formed of a semiconductor integrated circuit which is supplied with an electric power and drives a direct current motor includes a signal generating part that generates an indication signal for indicating a back electromotive force generation period while the direct current motor generates a back electromotive force, a removing part that detects a voltage variation generated in a power-supply voltage by the back electromotive force generated by the direct-current motor during the back electromotive force generation period indicated by the indication signal, and removes the detected voltage variation, and a limiting part that limits the power-supply voltage so as to be less than a predetermined voltage at a speed higher than that in the removing part. |
| 申请公布号 |
US2014306639(A1) |
申请公布日期 |
2014.10.16 |
| 申请号 |
US201414246191 |
申请日期 |
2014.04.07 |
| 申请人 |
MURAMATSU Atsushi;OHARA Tomomitsu |
发明人 |
MURAMATSU Atsushi;OHARA Tomomitsu |
| 分类号 |
H02P31/00 |
主分类号 |
H02P31/00 |
| 代理机构 |
|
代理人 |
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| 主权项 |
1. A motor driver apparatus that is formed of a semiconductor integrated circuit which is supplied with an electric power and drives a direct current motor, the motor driver apparatus comprising:
a signal generating part that generates an indication signal for indicating a back electromotive force generation period while the direct current motor generates a back electromotive force; a removing part that detects a voltage variation generated in a power-supply voltage by the back electromotive force generated by the direct-current motor during the back electromotive force generation period indicated by the indication signal, and removes the detected voltage variation; and a limiting part that limits the power-supply voltage so as to be less than a predetermined voltage at a speed higher than that in the removing part. |
| 地址 |
Tokyo JP |
