Motor driving method and device thereof
First Claim
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1. A motor driving method, comprising:
- receiving a non-electrical power source;
converting the non-electrical power source to a first electrical power;
receiving a second electrical power;
selecting the first or second electrical power as input according to a rotation speed of a motor, while the motor is operating; and
generating a feedback signal to a selector of the motor so as to allow the selector to select the first or second electrical power as output.
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Abstract
The invention provides a motor driving device including a converter receiving and converting a non-electrical power source, such as light, heat, mechanical or chemical energy, to a first electrical power, and a selector electrically connected between the converter and a motor, for receiving the first electrical power and a second electrical power from a power source, such as an electrical power generator, and outputting the first or second electrical power according to a rotation speed of the motor.
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Citations
19 Claims
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1. A motor driving method, comprising:
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receiving a non-electrical power source; converting the non-electrical power source to a first electrical power; receiving a second electrical power; selecting the first or second electrical power as input according to a rotation speed of a motor, while the motor is operating; and generating a feedback signal to a selector of the motor so as to allow the selector to select the first or second electrical power as output. - View Dependent Claims (2, 3, 4, 5)
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6. A motor driving device, electrically connected to a motor, comprising:
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a converter receiving and converting a non-electrical power source to a first electrical power; and a selector electrically connected between the converter and the motor for receiving the first electrical power and a second electrical power, and outputting the first or second electrical power according to a rotation speed of a motor, while the motor is operating, wherein the motor generates a feedback signal to the selector so as to allow the selector to select the first or second electrical power as output. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A motor driving device for saving energy, electrically connected to a motor, comprising:
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a converter receiving and converting a non-electrical power source to a first electrical power; and a selector electrically connected between the converter and the motor for receiving the first electrical power and a second electrical power, and outputting the first or second electrical power according to a rotation speed of a motor, while the motor is operating, wherein the first electrical power is outputted by the selector when the motor rotates at a low speed to save energy, and wherein the motor generates a feedback signal to the selector so as to allow the selector to select the first or second electrical power as output.
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Specification