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AssigneeIndustrial Technology Research Institute
InventorsKing Yin Wang, Li-Te Kuo, Jieh-Yee Huang, Shyh-Jier Wang, Tai-Fa Ying, Der-Ray Huang
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The present invention is a starting method for brushless DC motor and a device for the same, especially adapted to provide the starting method for a single-phase DC brushless motor in an open circuit and the device for the same. According to the art as disclosed in the present invention, there are two successive steps in starting a motor. An oscillator signal is transmitted to the driver at first, which causes the motor to oscillate in both clockwise and counter-clockwise direction. An operating signal is then sent to cause the motor to rotate normally in one direction once the motor is out of the dead initiating position. By that the rotor can be triggered out of the dead initiating position when the motor is going to start and the motor can be smoothly operated under the low cogging torque.
A method for starting a motor, comprising:
A device for controlling a rotor of a motor to be out of a dead initiating position, comprising:
A device for controlling a rotor of a motor to be out of a dead initiating position, comprising:
The device as claim recited in 11, wherein said period of high voltage of said triggering signal is equal to the period for said motor to oscillate both clockwise and counter-clockwise to be out of said dead initiating position.
Dependencies are inferred from the claim text.