Hysteretic current controlled ZVS dc/dc converter for automobiles

Author

Cernat, Mihai ; Scortaru, Petre ; Tanase, Alecu ; Iov, Florin

Author_Institution

Transilvania Univ. of Brasov, Brasov

fYear

2007

fDate

2-5 Sept. 2007

Firstpage

1

Lastpage

10

Abstract

A novel bi-directional dc-dc converter with ZVS and interleaving for dual voltage systems in automobiles is presented. A variable frequency extended band hysteretic current control method is proposed. In comparison with classical fixed frequency current control PWM, the reverse polarity peak current needed for ZVS operation is kept constant and no in excess circulating current losses at light load conditions are encountered. Inductor current ripple decreases with load reduction. Automatic changes in operation between buck and boost modes are accomplished without transient currents. Power circuit elements design is given. The four-stage interleaving is digitally controlled.

Keywords

DC-DC power convertors; automotive electronics; electric current control; zero voltage switching; automobiles; bi-directional dc-dc converter; fixed frequency current control PWM; hysteretic current controlled; power circuit elements; transient currents; Automobiles; Bidirectional control; Current control; DC-DC power converters; Frequency; Hysteresis; Inductors; Interleaved codes; Pulse width modulation; Zero voltage switching; Automotive electronics; Battery charger; Converter circuit; Interleaved Converters; MOSFET; Soft switching; ZVS converters;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics and Applications, 2007 European Conference on

Conference_Location

Aalborg

Print_ISBN

978-92-75815-10-8

Electronic_ISBN

978-92-75815-10-8

Type

conf

DOI

10.1109/EPE.2007.4417784

Filename

4417784