Title :
A unified method for optimal buck converter output capacitor design
Author :
DeNardo, A. ; Femia, N. ; Petrone, G. ; Spagnuolo, G.
Author_Institution :
Univ. of Salerno, Salerno
fDate :
June 30 2008-July 2 2008
Abstract :
This paper presents a novel method for design of output filter of low-voltage/high-current buck dc-dc switching regulators subject to load-transients. The method is based on use of acceptability boundary curves (ABC), which provide contour of regions in the space of parameters corresponding to commercial components which ensure acceptable output voltage ripple and load-transient surge. The new approach allows to figure out most convenient design solutions by using inductor current ripple as an optimization parameter. Examples regarding buck converters for point-of-load applications are discussed to highlight flexibility and reliability of method.
Keywords :
DC-DC power convertors; capacitor switching; logic circuits; network synthesis; power supplies to apparatus; surges; acceptability boundary curves; inductor current ripple; load-transient surge; low-voltage/high-current buck dc-dc switching regulators; optimal buck converter output capacitor design; point-of-load applications; Buck converters; Capacitance; Capacitors; Circuits; Digital control; Filters; Inductance; Inductors; Paramagnetic resonance; Voltage control;
Conference_Titel :
Industrial Electronics, 2008. ISIE 2008. IEEE International Symposium on
Conference_Location :
Cambridge
Print_ISBN :
978-1-4244-1665-3
Electronic_ISBN :
978-1-4244-1666-0
DOI :
10.1109/ISIE.2008.4677204
