On the transient analysis of a DC-DC buck converter under load steps scenarios

Author

Amariutei, Roxana-Daniela ; Andries, Vasilica-Daniela ; Goras, Liviu ; Rafaila, Monica ; Buzo, Andi ; Pelz, Georg

Author_Institution

ETTI, “Gheorghe Asachi” Tech. Univ., Iasi, Romania

fYear

2015

Firstpage

1

Lastpage

4

Abstract

This work presents a discussion on load steps modeling for the analysis of the dynamic behavior of a DC-DC Buck converter. The transient responses for two different ways of applying load steps, one using a load current source and the other one using a variable load resistance, are compared. The main focus is on the overshoot/undershoot in the behavior of the output voltage for the above mentioned cases, taking into consideration the influence of the input voltage, the on resistance of the MOSFET switches, the DC resistance (DCR) of the output inductor and the equivalent series resistance (ESR) of the output capacitor. A comparison between measurement and simulation results is presented as well.

Keywords

DC-DC power convertors; field effect transistor switches; transient analysis; DC resistance; DC-DC buck converter; DCR; ESR; MOSFET switches; equivalent series resistance; load current source; load steps scenarios; transient analysis; transient response; variable load resistance; Capacitors; Delays; Inductors; Integrated circuit modeling; Load modeling; Resistance; Transient analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Signals, Circuits and Systems (ISSCS), 2015 International Symposium on

Conference_Location

Iasi

Print_ISBN

978-1-4673-7487-3

Type

conf

DOI

10.1109/ISSCS.2015.7203940

Filename

7203940