Measurement of ripples

**broken link removed**

In the context of full bridge rectifiers, the ripple is peak-to-peak voltage. But, just be aware that ripple can also mean rms value, or peak amplitude also.. you never know for sure.. I mean, you can not make assumptions.

Generally the AC ripple is expressed as Pk. to Pk. voltage. However, it can also be specified however a manufacturer of a power supply or test procedure calls out. Measured with an Oscilloscope using AC coupling to block the DC component level on the vertical input.

<EDIT> Alas, beat by Mr. T </EDIT>

Ron

How are you defining "amplitude" in this context?

When considering ripple on a DC supply, if we measure it with an oscilloscope then it is easiest to measure the peak to peak value by just looking at the screen.
If you have one of the nice new digital scopes, you could set the scope to measure the ripple as an average or an RMS value.
But what ever you do, always state what you have measured, for example :

"The ripple on the 100 volt supply was measured as 3 volts peak to peak."

JimB

EDIT Alas beaten by MisterT and ReloadRon !

It might also be given a bandwidth spec as well.