ZAD-FPIC technique for controlling DC-DC buck converters

In this paper, we show numerical and experimental results obtained when a new PWM-digital control technique is applied to DC-DC converters.  The controller combines Zero Average Dynamics (ZAD) and Fixed Point Inducting Controller (FPIC) strategies. The first one has been reported in the literature in the last years and the second one is still in experimental phase.  The design has been tested in an experimental way in low power DC-DC converters, using dSPACE platform. Numerical and experimental bifurcation diagrams agree. When the system is working in a stable range it has very good performance, showing low error.

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