DocumentCode :
2754896
Title :
Analysis of rectifier topologies for automotive HV to LV phase shift ZVT DC/DC converter
Author :
Zeljkovic, Sandra ; Reiter, Tomas ; Gerling, Dieter
Author_Institution :
Infineon Technol. AG, Munich, Germany
fYear :
2012
fDate :
4-6 Sept. 2012
Abstract :
Full bridge phase shift zero voltage transition (ZVT) converter is a standard topology for the automotive high voltage (HV) to low voltage (LV) DC/DC converter. One of the major issues due to the required wide input and output voltage range is the voltage overshoot during the turn-off process of rectifier MOSFET switches. This paper presents a model to simulate turn-off voltage waveforms of switches for different rectifier topologies. Experimental verification on a 3kW converter prototype shows that the model is accurate regarding voltage overshoot value and the oscillation frequency, and that reverse recovery of body diodes has no significant effect on the overshoot. In comparison to two other rectifier topologies, the bridge rectifier has the lowest requirements regarding the switch breakdown voltage, resulting in decreased power losses and eliminating the need for complex clamping/snubber circuits in this specific application.
Keywords :
DC-DC power convertors; automotive electronics; electric breakdown; rectifiers; snubbers; automotive HV-LV phase shift ZVT dc/dc converter; complex clamping-snubber circuits; converter prototype; full bridge phase shift zero voltage transition; power 3 kW; rectifier MOSFET switches; rectifier topologies; rectifier topologies analysis; reverse recovery; switch breakdown voltage; turn-off process; turn-off voltage waveforms; voltage overshoot; Bridge circuits; DC-DC power converters; Rectifiers; Snubbers; Switches; Topology; Windings; HV to LV DC/DC converter; Hybrid and electrical vehicles; RC snubber; bridge rectifier; current doubler; full wave rectifier; phase shift ZVT DC/DC converter; voltage overshoot;
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.2012.6397205
Filename :
6397205
Link To Document :
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