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simulating currentmode DCDC control loop

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buenos

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hi

i want to simulate a current mode DCDC controller control loop in frequency domain for an openloop bode diagram, and for a closed loop output impedance.

how can i model the current control loop?
the model has to reflect the behavior in the frequency domain, so i dont want to use the real schematics of the DCDC with the flipflops and powerswitches.

for a voltage mode DCDC i can do the modelling fine, its working how it has to.
its similar to this, but without the currentmode loop.
 

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