Dear Raghu,

:-O The speed of variations is far more than what I had imagined. You are right the Anlog PID controls are by far superior than digital controls when too fast response and stepless control is required. The only disadvantage I see is a slight increase in component counts. Raghu can you please post a bigger view of schematic or if possible the schematic file itself. I am having difficulties reading some notations.

Regards,
Prahlad Purohit