MOTOR CONTROL METHOD AND DEVICE THEREOF
First Claim
Patent Images
1. A motor control method, comprising steps of:
- acquiring a current feedback signal;
generating a separate signal; and
comparing the current feedback signal with the separate signal and generating a motor control signal to control a rotational speed of a motor.
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Abstract
A motor control method and a motor control device are provided. The control method includes the steps of receiving a current feedback signal from a coil switching circuit, while the motor is rotating, for generating a separate signal, and comparing the current feedback signal and the separate signal for generating a motor control signal so as to control the operation of the motor.
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Citations
18 Claims
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1. A motor control method, comprising steps of:
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acquiring a current feedback signal; generating a separate signal; and comparing the current feedback signal with the separate signal and generating a motor control signal to control a rotational speed of a motor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A motor control device, comprising:
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a coil switching circuit; a motor driver, electrically coupled to the coil switching circuit, for controlling the coil switching circuit to switch phases; a current sampling circuit, electrically coupled to the coil switching circuit, for acquiring a current feedback signal from the coil switching circuit and output the current feedback signal; a separate signal generating circuit, for generating and outputting a separate signal; and a comparison circuit, electrically coupled to the current sampling circuit, the separate signal generating circuit, and the motor driver respectively, for comparing the current feedback signal with the separate signal to generate a motor control signal, and output the motor control signal to the motor driver to control a rotational speed of the motor. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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Specification