Please somebody help me understand how to work out the value of capacitor I need to add to my PWM CCR circuit. I read that the Arduino's PWM frequency is at about 500Hz, and that I will have 255 dimming steps. But the recommendation for adding a capacitor in my CCR datasheet leaves me very confused:…

PWM EMI capacitor - How to work out the value?

davivid December 6, 2012, 4:11pm 4

If EMI was an issue, what equation would I use to work out C?

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