Analysis of feedback linearized DC-DC boost and buck-boost converters.

摘要

Boost and buck-boost DC-DC converters are nonlinear systems by nature. This leads to complicated feedback when modeled to operate over large range of operating points. To resolve this issue Dr. Bob Hunt and Dr. Robert Taylor proposed a novel concept of applying input-output feedback linearization. Such converters operate over a large range of operating points without any right half plane zero effects.;This work focuses on system level design and simulation of these converters using SIMPLIS software. Furthermore, a novel method to reduce the output voltage ripple without making any major hardware modification has been implemented. Additionally, the setups and results for various analyses such as line-load regulation, loop analysis, input voltage range, etc, are discussed. These analyses were carried out on prototype boards designed prior to this work.