Mains voltage zero crossing detector with optical isolated output

hrh1818 · 2012-02-15T19:27:20+00:00

I am looking for a zero crossing detector IC for use with 120/240,50/60 Hz mains voltage and has an optical isolated output that iscompatible with micro controllers. I have seen zero crossing triacdrivers with an optical isolated input, such as the MOC3081. Butnothing with an optical isolated output. The nearest I have come sofar is a circuit made with discrete components Hence I willappreciate it if somebody can post a part number or link to this typeof IC.Howard

J

Jim Thompson 14 years ago

You're dumb as a stump and thicker. I have 2 daughters, 2 daughters-in-law and 5 granddaughters. Ask them whether I like women.

But I do dislike egomaniacs who behave like a bitch on the rag... as in your persistent behavior. ...Jim Thompson

Vote

J

John Fields 14 years ago

If you think that not liking you equates to not liking women, then I think you have gender issues to deal with.

Vote

J

Jim Thompson 14 years ago

[snip]

Larkin has mental health issues to deal with. He's potentially dangerous. Maybe I should turn him in ?:-) ...Jim Thompson

Vote

J

John Fields 14 years ago

How does it not work?

Vote

J

John Larkin 14 years ago

Maybe both you should post some ZCD circuits that make sense.

John Larkin, President Highland Technology, Inc jlarkin at highlandtechnology dot com http://www.highlandtechnology.com Precision electronic instrumentation Picosecond-resolution Digital Delay and Pulse generators Custom laser controllers Photonics and fiberoptic TTL data links VME thermocouple, LVDT, synchro acquisition and simulation

Vote

J

Jim Thompson 14 years ago

Fields just did, and you proved yourself too ignorant (or too hard-headed) to understand. ...Jim Thompson

Vote

J

John Larkin 14 years ago

You approve of his design?

Is it better than yours?

John Larkin, President Highland Technology, Inc jlarkin at highlandtechnology dot com http://www.highlandtechnology.com Precision electronic instrumentation Picosecond-resolution Digital Delay and Pulse generators Custom laser controllers Photonics and fiberoptic TTL data links VME thermocouple, LVDT, synchro acquisition and simulation

Vote

J

Jamie 14 years ago

Good question John :)

Jamie

Vote

J

John Larkin 14 years ago

JT won't criticize JF's stuff, no matter how bad it is. Old hens have to stick together, I guess.

John Larkin, President Highland Technology, Inc jlarkin at highlandtechnology dot com http://www.highlandtechnology.com Precision electronic instrumentation Picosecond-resolution Digital Delay and Pulse generators Custom laser controllers Photonics and fiberoptic TTL data links VME thermocouple, LVDT, synchro acquisition and simulation

Vote

J

John Fields 14 years ago

Oh, he understands OK, but he'll just be damned if he'll give credit to anyone else for elegance, originality, utility; all that kind of stuff, since NIH makes anyone else's contribution disdainful in his eyes and, after all, this is only USENET, populated by his inferiors. Ever notice how the best "compliment" he can come up with is the left-handed "cute", and by using that he attempts to denigrate the value of the contribution? Strange bird indeed, and when you catch him making a mistake it's like having a wily old catfish on the line whose lips have been so shredded by previous encounters that they'll say anything to keep from admitting that they've been hooked.

Vote

J

Jim Thompson 14 years ago

Bait not taken, so I guess you're relegated to go sit in the corner, suck your thumb, and masterbait ;-) ...Jim Thompson

Vote

J

John Fields 14 years ago

Divide and conquer by fomenting prideful unrest? Hardly the mark of a peacemaker. Jim and I buried the hatchet a long time ago, so that won't work. Since you consider yourself an authority, why don't you take the time to look at both of our approaches and comment on why you think one is better than the other?

Vote

J

John Fields 14 years ago

Another poor soul falls into the abyss.

Vote

J

John Fields 14 years ago

Yeah, we do, and in our school we're ruthless, but kind, with our critiques, in order to make each other better without incurring rancor. You, on the other hand, seem to be interested only in control and subjecting everyone to your will.

Vote

J

Jamie 14 years ago

It wasn't a fall but a jump!

Just thought you needed some company down there?

Guys like me aren't very plentiful these days.

Jamie

Vote

J

Jim Thompson 14 years ago

Jamie = sycophant, plus he's abysmally ignorant. ...Jim Thompson

Vote

J

John Larkin 14 years ago

You're stuck defending his hairballs. How can you stand it?

John Larkin, President Highland Technology, Inc jlarkin at highlandtechnology dot com http://www.highlandtechnology.com Precision electronic instrumentation Picosecond-resolution Digital Delay and Pulse generators Custom laser controllers Photonics and fiberoptic TTL data links VME thermocouple, LVDT, synchro acquisition and simulation

Vote

J

John Larkin 14 years ago

So he has to compromise his professionalism - what there is of it - to support an ally. Sad.

John Larkin, President Highland Technology, Inc jlarkin at highlandtechnology dot com http://www.highlandtechnology.com Precision electronic instrumentation Picosecond-resolution Digital Delay and Pulse generators Custom laser controllers Photonics and fiberoptic TTL data links VME thermocouple, LVDT, synchro acquisition and simulation

Vote

J

Jim Thompson 14 years ago

John, How can you stand yourself? You need to grow up. You're not the god of circuit design. If you're the god of anything, it's subterfuge, obfuscation and outright prevarication. Get lost. ...Jim Thompson

Vote

J

Jamie 14 years ago

Thank you for those kind words of wisdom.

If I were to look for you in a crowd, you shouldn't be difficult to locate, I'll just look for the smallest gathering.

What a party animal!

Jamie

Vote

Mains voltage zero crossing detector with optical isolated output

Join the Discussion

Didn't find your answer?