Title :
Dynamic performance analysis of 3-level integrated buck converters
Author :
Xun Liu ; Cheng Huang ; Mok, Philip K. T.
Author_Institution :
Dept. of Electron. & Comput. Eng., Hong Kong Univ. of Sci. & Technol., Hong Kong, China
Abstract :
A systematic analysis of 3-level integrated buck converters is conducted in this paper. Detailed derivations of the working principles, voltage conversion ratio and output voltage ripple are given. In particular, the system loop gain of 3-level buck converters is analyzed, which provides guidance on designing fast and robust 3-level converters. The derived loop gain is verified with time-domain small signal injection analysis. The results show a good match between analytical and simulation results.
Keywords :
DC-DC power convertors; time-domain analysis; 3-level integrated buck converters; dynamic performance analysis; output voltage ripple; system loop gain; systematic analysis; time-domain small signal injection analysis; voltage conversion ratio; Capacitors; Inductors; Mathematical model; Simulation; Standards; Time-domain analysis; Transfer functions;
Conference_Titel :
Circuits and Systems (ISCAS), 2015 IEEE International Symposium on
Conference_Location :
Lisbon
DOI :
10.1109/ISCAS.2015.7169091
