| 发明名称 | Motor drive device, timepiece device, and electronic device | ||
| 摘要 | A motor drive device includes a charging detection and reverse current prevention portion and a pulse selection control portion. The charging detection and reverse current prevention portion detects a charging state of a secondary battery that is charged by an electromotive force of a solar battery, the charging state indicating whether the secondary battery is being charged. The pulse selection control portion causes a first drive pulse for driving a motor to be generated and, in a case where the charging state that is detected by the charging detection and reverse current prevention portion is different after the first drive pulse has been output from what it was before the first drive pulse was output, causes a second drive pulse for driving the motor to be generated. | ||
| 申请公布号 | US8810186(B2) | 申请公布日期 | 2014.08.19 |
| 申请号 | US201213374772 | 申请日期 | 2012.01.12 |
| 申请人 | Seiko Instruments Inc. | 发明人 | Kamiyama Shotaro;Ogasawara Kenji;Manaka Saburo;Honmura Keishi;Sakumoto Kazumi;Shimizu Hiroshi;Yamamoto Kosuke |
| 分类号 | H02P8/38;H02P8/02 | 主分类号 | H02P8/38 |
| 代理机构 | Adams & Wilks | 代理人 | Adams & Wilks |
| 主权项 | 1. A motor drive device, comprising: a charging detection portion that detects a charging state of a secondary power supply portion that is charged by an electromotive force of a primary power supply portion, the charging state indicating whether the secondary power supply portion is being charged; and a control portion that causes a first drive pulse for driving a motor to be generated and that, in a case where the charging state that is detected by the charging detection portion is different after the first drive pulse has been output from what it was before the first drive pulse was output, causes a second drive pulse for driving the motor to be generated. | ||
| 地址 | JP | ||