i design eeg circuit and i get shocked
i dont know how to isolate the source of power to protect me
where the shock exactly come from?
thanks

 

Welcome to the forums.

Your post did not fit in this thread - http://forum.allaboutcircuits.com/showthread.php?t=6356&page=2

We can help more if you can show us your circuit schematic, especially the power supply.

 

Please use a transformer to isolate yourself from the mains. Be sure there are no components crossing over the isolation barrier. And check your grounds.

 

If you are connecting electrodes to people I would recommend that you use battery power, no connection to the power lines at all.

 

It would be interesting to see your complete design. As we need this to draw any conclusion.