I need to know if the 120 VAC line is hot and get an isolated 5VDC output.
I googled up two design ideas (please see images). I would like something like them.
I like the first one because it uses a 4N33 (which I have on hand) but it may not be the best one to use.
Please advise. Thanks.
I googled up two design ideas (please see images). I would like something like them.
I like the first one because it uses a 4N33 (which I have on hand) but it may not be the best one to use.
Please advise. Thanks.