Control of FSI in Switching Power Converters

Abstract

The previous chapter has addressed the prediction of FSI in a VMC buck converter, directly relating it to the ripple magnitude at the modulator input. Beyond the fact of being able to quantitatively predict such stability boundary from a ripple-based approach, the chapter puts forward the fact that the design trends towards miniaturization, namely low area and low relative switching frequency, which directly implies an increase upon ripple, is indirectly limited by the exhibition of FSI. With this interest in sight, this chapter tackles the synthesis of FSI (chaos) controllers from an engineering standpoint, hence facilitating their design and implementation and understanding their impact upon overall stability.