Title :
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
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;
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
DOI :
10.1109/EPE.2007.4417784
