current mode control buck converter with an outer current loop control

Thread Starter

Jawad Jahangir

Joined Jun 20, 2018
1
Hi,

I'm trying to design a PV emulator using a constant current source buck converter. It's a project given to me by my supervisor at uni. I've tried to use peak current mode and average current mode control systems but the way that works is that an outer voltage loop coordinates with an inner current loop but my supervisor wants both the loops to be current based.
I figured I could just place a sensing resistor after the load of the converter and place a sensor across it to get a reference current, but I'm highly confused with all the parameters with the components, the models of the op amps and the feedback loop (with a flipflop or whatever etc.)
Can someone please help me out?
I am trying to achieve an output voltage of about 20V
 
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