Page 1029 - Basic Electrical Engineering

I is the average value of the rectified current.
dc

The RMS value, I is calculated by first squaring the current, then taking its
mean, and then taking its root as

Ripple Factor: The output of a half-wave rectifier is a pulsating dc. If we
analyse, we will see that it has a steady dc component and an ac component.

The ac component is called the ripple. Ripple factor is defined as the ratio of
the RMS value of ac component to the value of dc component. The ripple

factor indicates the level of fluctuation of the output voltage from its steady
value. Ripple is an undesired effect and should be minimized. The ripple
factor, r for a half-wave rectifier is calculated as