Ripple factor

For half wave rectifier filter effectiveness can be observed from the below graph.

Half-wave ripple voltage (green line).


The frequency of a full-wave rectified voltage is twice that of a half-wave rectified voltage. 

 
Comparison of ripple voltages for half-wave and full-wave rectified voltages with the same filter capacitor and load and derived from the same sinusoidal input voltage.
 

Vr  and VDC determine the ripple factor.



Effects of RL and C


 

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