Analysis of switching frequency reduction methods applied to sliding mode controlled DC-DC converters

The operation of sliding mode controlled DC-DC power converters operating at finite switching frequency is studied. Several methods currently used for reduction of power electronic converter switching frequency are considered. The finite switching frequency behavior of the control system that arises from the use of those switching frequency reduction methods is analyzed from the viewpoint of dynamic and steady-state errors. Simulation and experimental results are presented. Hardware details for the implementation of the switching frequency reduction methods that lead to the best results are also given.<
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