I have a need to measure peak AC voltage, but since I'm too cheap to buy a DVA, plus which I prefer fabricating my own tools anyway just for the challenge, I'm looking for some advice. A design involving a bridge rectifier/smoothing capacitor wouldn't work because I need to measure voltages as low as 0.5V. Unless there's a way around the diodes' voltage drop. My upper bound would be 150V.
Does anyone know how a DVA works? Have a schematic? Any ideas at all?
Thanks!
Does anyone know how a DVA works? Have a schematic? Any ideas at all?
Thanks!