[ricemodder]

Originally Posted by ale0502

Hi everyone,

It´s placed on the circuit three comparators for compare the "under current" of the LEMs measurements.
What is the function of that?
I understand de high current, but not the under current.



thanks

Hi,

The label 'under current' is used to represent negative values. The lems have a nominal output of about 2.5 volts - this represents a 0 amp value. if the voltage is below this, the current is negative.

The three comparators are used to similar to the high current but compare the negative current or low side fet ids.