| 摘要 |
A braking apparatus for a three-phase brushless motor is provided in a motor-driven appliance, and includes a switching circuit having six switching elements and a brake control device. The brake control device executes two-phase short-circuit control in braking control in which a braking force is generated in the motor. In the two-phase short-circuit control, an on/off state of each of the switching elements is set in such a manner that two out of three conduction paths constituting one of a positive electrode side conduction path that connects three terminals of the motor and a positive electrode side of a direct current power source and a negative electrode side conduction path that connects the three terminals and a negative electrode side of the power source are in a conducting state and other of the three conduction paths is in a non-conducting state.
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