Comment on Antique Electro-Cautery Unit: Measuring voltage with ADC and general safety.
Scafir@discuss.tchncs.de 1 day ago
Thank you for the pics and explanations! Seeing such big power transformer in a wooden box terrifies me, probably more than it should.
For the ADC, I’m not too sure what you could use. The easy way would be to use ZMPT101B, and live with the fact that you would be using 1% of its range (you would need to check its resolution). Maybe you could also try to rectify it using an ideal diode IC.
Machinist@lemmy.world 1 day ago
I looked at the ZMPT101B, not sure if it will work at that low a voltage.
Did some quick looking at the ideal diode modules available on Amazon, but they were just schottky drop or so. Sparkfun had one that might work. Ideal diode is definitely the right sort of thing, just have to find one ideal enough. If I can find the right one, it should work.
I’ve been looking at precision rectifier op amp circuits. Even half wave gets me what I need.