Zoran Mihajlovic

Output Ripple Analysis of Switching DC-DC Converters

March 6, 1998
2:00 PM
406 Egan

Abstract

Formal mathematical modeling techniques are given to capture the dynamics of minimum and maximum output signals in switching DC-DC converters. It is shown that the ripple can have a dominant effect on the output when there is a large load increase or when parasitic effects are dominant. It is suggested that, at times, controlling the averaged output of a converter can be ineffective because peak output values sometimes significantly deviate from the averaged output. This thesis attempts to quantify this deviation by using both small signal transfer functions and nonlinear (often steady state) models

Thesis Committee:
Prof. Brad Lehman (advisor)
Prof. Aleksandar M. Stankovic
Prof. Bahram Shafai
David J. Perreault (MIT)