| 发明名称 | Motor drive apparatus | ||
| 摘要 | A motor drive apparatus comprises: a position signal generation portion that generates a position signal corresponding to a rotor position of a brushless DC motor; and a logic portion that when starting the brushless DC motor, disposes a non-energizing period immediately after starting forced commutation at a phase switchover timing corresponding to a predetermined forced commutation frequency and performs energizing control of the brushless DC motor such that usual commutation is started at a phase switchover timing corresponding to the position signal that is generated during an inertial rotation of the rotor. | ||
| 申请公布号 | US9197149(B2) | 申请公布日期 | 2015.11.24 |
| 申请号 | US201314097762 | 申请日期 | 2013.12.05 |
| 申请人 | Rohm Co., Ltd. | 发明人 | Yamato Tetsuo;Takizawa Noboru |
| 分类号 | H02P5/00;H02P6/20;H02P23/00;H02P6/14 | 主分类号 | H02P5/00 |
| 代理机构 | Fish & Richardson P.C. | 代理人 | Fish & Richardson P.C. |
| 主权项 | 1. A motor drive apparatus comprising: a position signal generation portion that generates a position signal corresponding to a rotor position of a brushless DC motor; and a logic portion that when starting the brushless DC motor, disposes a non-energizing period immediately after starting forced commutation at a phase switchover timing corresponding to a predetermined forced commutation frequency and performs energizing control of the brushless DC motor such that usual commutation is started at a phase switchover timing corresponding to the position signal that is generated during an inertial rotation of the rotor. | ||
| 地址 | Kyoto JP | ||