| 发明名称 | Electric power tool | ||
| 摘要 | An electric power tool includes a power supply, a motor capable of being driven in a forward rotation mode or a reverse rotation mode, and a voltage step-up unit capable of performing a voltage step-up operation to raise a voltage supplied from the power supply and supply a raised voltage to the motor. The voltage step-up unit is configured to change the voltage step-up operation in accordance with whether a rotation mode of the motor is the forward rotation mode or the reverse rotation mode. | ||
| 申请公布号 | US9270211(B2) | 申请公布日期 | 2016.02.23 |
| 申请号 | US201414200260 | 申请日期 | 2014.03.07 |
| 申请人 | Panasonic Intellectual Property Management Co., Ltd. | 发明人 | Kaizo Hiroyuki;Arimura Tadashi;Ohashi Toshiharu |
| 分类号 | H02P6/00;H02J7/00;H02P7/00;H02M3/156 | 主分类号 | H02P6/00 |
| 代理机构 | Renner, Otto, Boisselle & Sklar, LLP | 代理人 | Renner, Otto, Boisselle & Sklar, LLP |
| 主权项 | 1. An electric power tool comprising: a power supply; a motor capable of being driven in a forward rotation mode or a reverse rotation mode; and a voltage step-up unit capable of performing a voltage step-up operation to raise a voltage supplied from the power supply and supply a raised voltage to the motor, wherein the voltage step-up unit is configured to: change the voltage step-up operation in accordance with whether a rotation mode of the motor is the forward rotation mode or the reverse rotation mode;perform the voltage step-up operation in an initial stage of a reverse rotation driving period from start of reverse rotation of the motor to stop of reverse rotation of the motor; andperform the voltage step-up operation with a smaller voltage step-up level than that in the initial stage, or stop the voltage step-up operation, in at least part of the reverse rotation driving period after the initial stage. | ||
| 地址 | Osaka JP | ||