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Digital demodulator for pulse-width modulated (PWM) signals in a motor controller
Digital demodulator for pulse-width modulated (PWM) signals in a motor controller
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机译:用于电机控制器中脉宽调制(PWM)信号的数字解调器
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摘要
Described embodiments provide circuits, systems and methods for digitally demodulating a pulse-width modulated (PWM) signal in a motor control system. An electronic circuit of the motor control system includes an input to receive a speed demand signal that is a PWM signal having a duty cycle associated with a requested speed of a motor. A PWM demodulator demodulates the PWM signal and generates an N-bit digital speed value representative of the requested speed of the motor, where N is a positive integer. A motor driver generates, based at least in part upon the N-bit digital speed value, one or more control signals to operate the motor.
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