help for controller design

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RATAN ROY

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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.....
 

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**
 

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