What is the purpose of the capacitor and the inductor in this basic PWM circuit? Why does the capacitor need be there for the Va to equal Vin when the switch pole is in the up position? Same with the inductor, what does it do in this circuit specifically and why does it have to be there?
Wouldn't the Va be equal to Vin without the capacitor there?
Wouldn't the Va be equal to Vin without the capacitor there?
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