frequency range of AC clamp current meters

[kamocat]

Originally Posted by Al Skierkiewicz

The input current still should reflect the output current switching waveforms.

Don't forget about the capacitor. The input should be somewhat smoother than the output. Just based on the noise of the DC-DC power supplies on the PD board, I haven't noticed a difference when the Jaguars are drawing a load compared to when they aren't. I realize we're looking at current and not voltage, but it seems the 5v regulators on the DSC and AB put more noise on the line than the Jaguars.

So the answer is no, a common AC clamp meter will not work. Thanks.

Now on the theory side, is 50 watts AC the same amount of power as 50 watts DC?
Does the shape of the waveform affect the accuracy of a reading? (Do most meters assume it's a low-noise sine wave?)