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PWM/ Duty Cycle input


sportbikeryder
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Is there a method available or does anyone have a trick up their sleeve to measure duty cycle of an input channel?

I have a sensor that outputs a PWM signal with constant overall period, with duty cycle variance being the output level.

 

I suppose I could use an RC filter to convert it to an analog voltage, but may not have enough PWM frequency to get anything with decent response and low ripple.

 

John

 

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