Calculates the peak-to-peak ripple voltage of a supply capacitor.
rippleOfCapPP( 1000uF, 100Hz, 100mA )
|cap||the size of the capacitor|
|freq||charge frequency. For example in case of full wave rectification of mains supply it's 100/120Hz, in half wave 50/60Hz.|
|load||load current. Because usually the ripple is small, a constant current load can be assumed even in case of resistive load.|
|return value||the peak-to-peak voltage ripple.|