Go Back   Home > Forums > >
Home Forums Rules Articles diyAudio Store Blogs Gallery Wiki Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Solid State Talk all about solid state amplification.

digitally detecting zero cross on 120v
digitally detecting zero cross on 120v
Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Thread Tools Search this Thread
Old 14th January 2004, 08:25 AM   #1
Myren is offline Myren  United States
diyAudio Member
Join Date: Oct 2001
Location: Maryland
Send a message via ICQ to Myren Send a message via AIM to Myren
Default digitally detecting zero cross on 120v

i'm wondering what i can do to detect zero cross on a 120v line. i just need some sort of a pulse of some form (or inverse pulse) at the zero cross i can send off to a microcontroller.

i was thinking just a 4n25 with the AC wired to the LED, but for all my fiddling i feel no closer to success. hoping someone can point me towards a slightly better starting place.

this is going to go to some of my control circuitry for this weird idea for a hybrid switching / big huge transformer power supply i'm twiddling with.

  Reply With Quote


digitally detecting zero cross on 120vHide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
1500VA power transformers 120V:120V RyanW Swap Meet 4 17th February 2009 08:31 PM
Signal Detecting Source Selector error401 Digital Source 12 16th October 2007 02:42 PM
Detecting tones from PC audio output chipco3434 Everything Else 1 3rd January 2007 01:30 PM
Help with detecting/reducing ocilation on a gainclone PaulHilgeman Chip Amps 1 29th January 2003 07:46 AM
2n3055, mj21193, mj15004 pics (for detecting counterfeits) ThingyNess Parts 8 28th March 2002 01:44 PM

New To Site? Need Help?

All times are GMT. The time now is 07:05 AM.

Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 16.67%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright ©1999-2017 diyAudio