[Amps] ripple in B+ supply.

[Bill, W6WRT]

ORIGINAL MESSAGE:

On Thu, 25 Mar 2010 06:03:37 -0700, "Jim Thomson" <Jim.thom at telus.net>
wrote:

>## Even if u measured P-P ripple on any scope, the 1st thing you
>do is divide it by 2.. to give you peak.   Then multiply  peak x .707
>[or divide by 1.414]   Ok, now u have RMS.  

REPLY:

Sorry, that method is only correct for a sine wave, not for a
sawtooth.  You would be close, probably good enough for ham purposes
but not spot on. As you mention later in your post, a true RMS meter
such as a Fluke 87 or equivalent is the way to go if RMS is what you
want. 

73, Bill W6WRT