Hello fellow physicists!(adsbygoogle = window.adsbygoogle || []).push({});

I have a lab about rectifying and filtering circuits and I was asked to calculated the ripple factor using an oscilloscope.

I managed to get the ripple waveform shown on the oscilloscope, but the thing is there are so many values to read off I have no idea which to use/take.

I know the ripple factor is given by the ratio of V_ac over V_dc

where V_ac is the rms of 1/2 the Vpp of the ripple waveform (am I correct here to get the Vpp and multiply this by 1/2*1/sqrt(3)) i.e. sqrt3 since this is a sawtooth waveform

and V_dc should be given by what? v_rms v_avg.. there are so many values to choose from the oscilloscope I do not know what to do!

**Physics Forums | Science Articles, Homework Help, Discussion**

Dismiss Notice

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Calculating the ripple factor from oscilloscope

**Physics Forums | Science Articles, Homework Help, Discussion**