[Nikhila RagipindiParticipant]

Dear Ahmad,

Thanks for looking into it. Actually I am working on a bias controller for Mach Zehnder Modulator. The question I asked is a simpler version of the problem I am looking at. MATLAB component has to take output from the adder and verify whether its less than 3 or not. Then provide the required amount of voltage to the ‘adder input’ as a controller loop. I am attaching the block diagram of how the loop has to be.
The problem I am facing is how to run the circuitry in loop. How can we adjust the circuit to take at least 2 loops.

Thank you,
Nikhila

Attachments:

1. 

   comparator_block.png