Dear Nikhila,
you need to make the control loop inside the Matlab component by modifying the code to allow checking the input voltage and compare it to 3 or you could make the check within a range of 3 (between 2.99 and 3.01 for example), if it is less than three (or the range) you add (some value; could be a fraction of 1) and if it is larger than 3 you subtract (some value; again could be fraction of 1 like 0.1). once you match the value of the loop inside the Matlab component to 3 or the range, you stop and use the value to be added to the input of the adder as shown in the attached figure. please contact me at ahmad.atieh@optiwave.com if you’d like to discuss further.
Regards,
Ahmad
