Title :
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
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;
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
DOI :
10.1109/EPEPEMC.2012.6397272
