AC Optocoupler LTV 814

RE: AC Optocoupler LTV 814

DAB — Sat, 22 Feb 2020 23:59:08 GMT

Good post John.

I too did not know about these devices, but they look very interesting.

DAB

RE: AC Optocoupler LTV 814

ralphjy — Sat, 22 Feb 2020 22:12:58 GMT

Had not realized that there was an AC version of optocoupler, I've used the DC versions before but didn't think of using one of these to make the input polarity insensitive as Shabaz suggested.

What surprised me was that it was not obvious from the data sheet that this was an AC input part other than in the package diagrams(the sheet that you included).

Reminds me that I need to add a detector to sense when my laser power is on. Probably don't need an optocoupler but it would be an inexpensive buffer.

Thanks for sharing. I'm sure that one day I'll have a need to sense presence of AC voltage.

RE: AC Optocoupler LTV 814

shabaz — Sat, 22 Feb 2020 14:24:01 GMT

Hi John,

It's great you're highlighting the usefulness of these devices. I like those versions for DC too, in case if someone connects the power the wrong way around, it will still work : )