Comparative evaluation of buck and hybrid buck DC-DC converters for automotive applications

Author

Muntean, N. ; Cornea, Octavian ; Pelan, Ovidiu ; Lascu, Cristian

Author_Institution

Dept. of Electr. Eng., Univ. “Politeh.” of TimisoaraTimisoara, Timisoara, Romania

fYear

2012

fDate

4-6 Sept. 2012

Abstract

Many applications require a high step-down ratio in DC-DC converters. Hybrid structures, using switched-capacitors and/or switched-inductors, have been reported as an alternative to high frequency transformer converters. The object of this paper is a comparative study of a switched-capacitor hybrid buck DC-DC converter (HBDC) and a classical buck DC-DC converter (BDC) for automotive applications. The hybrid converter uses a bank of switched capacitors in order to halve the input voltage available to the regular buck converter. Analytical aspects and digital simulations, validated through experimental results obtained from a full scale, 1kW rated power prototype, are presented for this purpose.

Keywords

DC-DC power convertors; automotive electrics; automotive applications; buck and hybrid buck DC-DC converters; comparative evaluation; switched-capacitors; switched-inductors; Capacitors; Equations; Inductors; Mathematical model; Switches; Topology; Transistors; DC-DC power converters; automotive applications; circuit topology;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics and Motion Control Conference (EPE/PEMC), 2012 15th International

Conference_Location

Novi Sad

Print_ISBN

978-1-4673-1970-6

Electronic_ISBN

978-1-4673-1971-3

Type

conf

DOI

10.1109/EPEPEMC.2012.6397272

Filename

6397272