CDC Electronic WorkShop - Op-Amp buffer circuiit thing.
1,918 views · Published 2 December 2012 · 10:57 · Indexed 24 October 2026
Channel: CoolDudeClem · 2012 · Science & Technology
Well as I'm going to be doing stuff to my video editing computer, I thought for a little extra something, I'd make a circuit to isolate the line in and outs. For some reason, if connect something to the computer, and it's on a different mains circuit, there's often quite a high voltage between grounds on the two devices, sometimes it's as low a just a few volts, other times it can be over 100, and during the brief moment when things are being connected, that high voltage can get into the chips and damage them. So to avoid damage to the computer, that's why I made this circuit. Op-amps can be replaced, sensitive surface mount digital components cannot.
