MOTOR DRIVE CIRCUIT AND MOTOR THEREOF

摘要

The present disclosure illustrates a motor drive circuit. The motor drive circuit includes a resistor module, a multiplexer, a data control unit, an analog-to-digital converter and a register. The resistor module receives an input voltage and generates at least one parameter voltage. The parameter voltage is associated with a motor speed curve of a motor. The multiplexer receives the parameter voltage. The data control unit controls the multiplexer to output the parameter voltage. The analog-to-digital converter receives the parameter voltage and converts the parameter voltage to digital form, and then outputs the digital parameter voltage to the data control unit. The register stores the digital parameter voltage outputted by the data control unit. A controller determines the motor speed curve according to the digital parameter voltage stored in the register, and drives the motor in response to the motor speed curve.

主权项

1. A motor drive circuit, comprising:
a resistor module, configured for operatively receiving an input voltage, and generating at least one parameter voltage, wherein the parameter voltage is configured for operatively determining a motor speed curve of a motor; a multiplexer coupled to the resistor module, configured for operatively receiving the parameter voltage; a data control unit coupled to the multiplexer, configured for operatively controlling the multiplexer to output the parameter voltage; an analog-to-digital converter coupled to the multiplexer and the data control unit, configured for operatively receiving the parameter voltage and converting the parameter voltage to digital form, and then outputting the digital parameter voltage to the data control unit; and a register coupled to the data control unit, configured for operatively storing the digital parameter voltage outputted by the data control unit; wherein a controller determines the motor speed curve according to the digital parameter voltage stored in the register, and drives the motor in response to the motor speed curve to avoid noise generated during rotation of the motor from interfering with the motor; wherein after the register stores the digital parameter voltage, the data control unit outputs a switch signal to the controller, such that the controller enters an operation mode.