PID controller for bench power supply

[electros6]

Sir ,
     I am s big fan of yours. you are my roll model .
     I recently designed a bench power supply based of PID controller . I got the PID parameters using close loop tuning. Every thing works fine expect , that the settling time is around 1sec , but the settling time for the agilent E3210A is around 700ms. please somebody help me to increase the settle time. I used atmega8 microcontroller and LT8030.  I change the sampling time but does not yield any result. Please help me

[Korken]

The best thing to do is to measure the transfer function of the system and after that to use Matlabs PID-tuning toolbox.
Then you can directly see if what you want is possible and what effect noise will have.

Regards, Emil