TEMPERATURE CONTROL OF MOTOR
First Claim
1. A brushless motor, comprising:
- a rotor;
a stator comprising windings;
a power switching circuit configured to supply an electric current to the windings;
a temperature sensor placed on or in the vicinity of the power switching circuit and configured to sense a temperature of the power switching circuit; and
a controller configured to receive a temperature input from the temperature sensor, select a mode of operation of the motor based on the temperature input, and generates a pulse width modulation (PWM) signal corresponding to the selected mode of operation.
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Accused Products
Abstract
Some embodiments of the present disclosure provide a brushless motor configured to sense the temperature of the motor and control the operation of the motor. The motor is configured to lower the current generation in a power switching circuit and lower the temperature within the power switching circuit without stopping the operation of the motor. The brushless motor comprises a rotor, a stator comprising windings, a power switching circuit configured to supply an electric current to the windings, a temperature sensor placed on or in the vicinity of the power switching circuit and configured to sense or ascertain temperature of the power switching circuit, and a controller configured to receive a temperature input from the temperature sensor, select a mode of operation of the motor based on the temperature input, and generates a pulse width modulation (PWM) signal corresponding to the selected mode of operation. The present disclosure also provides a method of running a brushless motor with temperature control. The method comprises providing a motor, which comprises a rotor, a stator with windings, and a power switching circuit configured to supply an electric current to the windings, sensing or ascertain temperature of the power switching circuit, selecting a mode of operation of the motor based on the sensed or ascertained temperature, and generating a pulse width modulation (PWM) signal corresponding to the selected mode of operation.
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Citations
21 Claims
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1. A brushless motor, comprising:
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a rotor; a stator comprising windings; a power switching circuit configured to supply an electric current to the windings; a temperature sensor placed on or in the vicinity of the power switching circuit and configured to sense a temperature of the power switching circuit; and a controller configured to receive a temperature input from the temperature sensor, select a mode of operation of the motor based on the temperature input, and generates a pulse width modulation (PWM) signal corresponding to the selected mode of operation. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method of running a brushless motor, the method comprising:
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providing a motor, which comprises a rotor, a stator with windings, and a power switching circuit configured to supply an electric current to the windings; sensing a temperature of the power switching circuit; selecting a mode of operation of the motor based on the sensed or ascertained temperature; and generating a pulse width modulation (PWM) signal corresponding to the selected mode of operation. - View Dependent Claims (16, 17, 18, 19, 20, 21)
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Specification