Bang-Bang control over a direct current to direct current converter

Abstract

Abstract The following document presents an optimal control technique to control power converters direct current to direct current using the Bang-Bang control technique, for example a Buck power reducing converter will be shown, Subsequently and using an approach based on the principle of the maximum of Pontryagin, an optimized switched control technique (bang-bang) is designed and implemented that allows to obtain a performance comparable to the on-off action in terms of dynamic characteristics. Additional tests allow quantifying the optimality of the proposed technique and verifying the performance of the controlled system in energy terms, showing that an optimal switched control has, in addition to the minimization of the functional cost (minimum error energy), a lower incidence in the generation of high frequency switching noise, compared to conventional technique. As one of the most important aspects highlighted in the results corresponds to the simplicity of design and the high efficiency of the Bang-Bang controllers, making the output voltage practically no ripples.