interfacing CT with Arduino

Hi community,

I need to interface CT with arduino to monitor current. Have anyone tried this before :confused: !

Search is your friend.

current transformer site:

The output will be AC so you need an interface circuit to convert it to DC or read multiple samples and detect the peak or calculate RMS.

If you have a Google you can buy current transducers which have a DC 4-20mA output .

As an example :

Alternatively you will need to produce a bug of custom circuitry to give a DC value that you Arduino can read ( Google " precision rectifier). Build in some overvoltage protection to yr Arduino input