# What is ripple factor in halfwave rectifier?

1. May 15, 2012

### jd12345

Well rms current in AC is I / √2 and average current in DC is I /π ( in half wave)

ripple factor is rms current in AC divided by average current in DC which according to me is 2.2. But value given is 1.21 everywhere

Is my formula wrong. Have i misunderstood ripple factor?

2. May 16, 2012

### Philip Wood

This is, imo, quite a tricky little calculation. Thumbnail solution attached.

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Last edited: May 16, 2012
3. May 16, 2012

Ok thank you