Hi dknguyen,
These are diagrams from the page you linked.
**broken link removed**
**broken link removed**
Is it possible to implement so simple a circuit? Or are these merely rough application examples? Sensitivity would only depend on the IC that is inserted, no?
I've got a few of these I've been experimenting with....
https://www.electro-tech-online.com/custompdfs/2010/06/eq-711l_gmw.pdf
I'm trying to find a circuit that I can use to detect current flowing through a conductor.
About five amps in an 18ga conductor. Very low gauss.
Here's another circuit from last year in this forum....
**broken link removed**
And another that I've come across earlier...
https://i802.photobucket.com/albums/yy303/svejkovat/SDC11293.jpg
I'm in the process of testing that last one and it may work for me. But I've asked a few questions about it here and elsewhere and don't seem to be making any headway.
The simpler the better. I just want an ultra sensitive switch circuit. I'm experimenting with placement of the sensor chip in various ferrite rings for better sensitivity. Here's one example...
https://i802.photobucket.com/albums/yy303/svejkovat/SDC11104.jpg
It's an 8mm ID split ferrite snap-on choke with a hall sensor cemented into the gap.
I need to know when any current, as low as five to ten amps, is flowing through this conductor
**broken link removed**
It's 8mm in diameter. Water cooled interior. Copper stranded conductor.
All I want to do is detect the current in order to operate a relay. I don't wish to measure it.