Hi
Can anyone help me with how this circuit works? what is this Opamp configuration?

 

power comes in from the left side, and goes out to load on the right side
R118 is a shunt resistor used to sense current.
U7 works as a shunt monitor.
Q17 is a switch and U5 controls it.
both opamps work as inverting amplifier with high gain so basically they function more or less as comparators.

 

U4 acts as a linear amplifier for the overcurrent voltage across R118, whose output voltage is also a slight function of the supply voltage as determined by the voltage at the R115 and R119 junction.
The voltage across R115 and the value of R118, along with the gain of U7 determines U7's output voltage versus the current, which then goes through D4 and R51 to U5-4.

Also going to U5-4 is the output voltage through R109.

U5 acts as an OR-gate comparator to turn off the MOSFET (U5-1 goes low) when the voltage at U5-4 exceeds the +1V2_REF voltage at U5-3 from either the output voltage or U7's current-limit voltage.

Make sense?