Abstract
AbstractWe consider linear quadratic optimal control for a class of pulse frequency modulated systems. The problem is motivated from a practical application — digital control of a new type of twin-buck switching power converters. The pulse frequency modulated technique is deemed necessary in order to achieve the so-called “zero current switching”. The control synthesis problem is posed based on a sampled data model of the original switching dynamics and a linear quadratic criterion that takes the at-sampling behavior into account.
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