hard20 pts · first answer countsmicrocontrollersadcpwm

ADC noise synced to PWM

Current sense ADC readings in a motor drive show large noise spikes, and the noise pattern repeats at the PWM frequency. What is the best fix?

A.Use a slower ADC clock for every channel on the chip at all timesB.Average 1,000 readings in software before using any of themC.Trigger the ADC from the PWM timer so it samples away from edgesD.Turn the PWM outputs off for a short time during each sample

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ADC noise synced to PWM

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