help for controller design

[RATAN ROY]

hi,
i need help,regarding to design a current loop controller which would be very stable (ppm less than 100).one of it input is the sensed current output and another is microcontroller generated reference.........if any schematics,advice,guidence please.....

 

[mess123]

This means you need to design discrete controller for duty ratio control. You can do this by implementing a discrete PI controller in the microcontroller.

Take a look on the link below which is a paper on "Average current mode control of switching power supplies".

**broken link removed**