| 摘要 |
PURPOSE: An electric tool using a brushless and contactless permanent magnet-type motor is provided to reduce the rear of components due to the friction of an electric tool and a commutator, and burning due to arc generation by applying contactless rectification mode without a brush. CONSTITUTION: An electric tool operated by commercial AC power comprises a brushless and contactless permanent magnet-type motor and a control unit(220). The motor supplies operation force to the electric tool. The control unit controls the motor and is made small size and embedded in the housing(200) of an electric tool. |
