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AMC1304M25: max PWM Frequency for Motor control

Part Number: AMC1304M25


we want to use 3 AMC1304M25 and AM437x for Motor control.

we want to measure the current of the 3 phases.

Can someone explain me how long the current measurement takes and what

max. PWM Frequency is possible.

  • Hi Peter,

    First thing you might want to do is to download our Delta Sigma Modulator Filter Calculator, you can find that here:  From there, you can enter the AMC1304M25 modulator clock speed that you plan to use.  You can then set the filter order and over sampling rate that you plan to use.  With that detail entered, you will have the effective sampling rate that feeds into your AM437x processor.

    We may need to get you in touch with the Sitara Team to get the nitty gritty detail on the PWM controller options available to you.