Hi,(adsbygoogle = window.adsbygoogle || []).push({});

I have a circuit with a pot connected to an 26VAC signal through a diode and to ground... i.e. there is a half wave rectified signal across the pot. I'm then measuring the voltage off the wiper.

I'm looking through some peoples work, and they write the max output voltage is [itex]26\frac{\sqrt{2}}{\pi}[/itex].

Can anybody explain this? To me, this looks like the average output of an RMS signal, but the calculations they make are assuming it's the max output.

Thanks!

**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!

# AC Voltage Across a POT

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