Design of Phase Shift DCDC Converter for EV
*Corresponding Author:Received Date: Dec 22, 2023 / Accepted Date: Jan 17, 2024 / Published Date: Jan 18, 2024
Copyright: © 2024 . This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Abstract
The demand for robust and efficient power converters is driving the research of various DC-DC converter topologies
and enhanced control strategies. In this paper, comparative analysis of full-bridge LLC (Inductor-Inductor-Capacitor)
and phase-shifted full-bridge converters, center-tapped and bridge rectifiers, synchronous and passive rectifiers have
been performed. Zero voltage switching (ZVS) resonant considerations for the Phase Shift Full Bridge (PSFB) have
been studied. A 1kW phase-shifted full-bridge DC-DC ZVS converter has been designed and modeled. Aspects of the
selection of components of an isolated DC-DC converter studied and discussed. The theoretical design of a converter
is compared with and validated by simulation. Design aspects of shim inductor and effect of changing the position of
shim inductor and clamping diodes is discussed. With correct position of shim inductor and clamping diodes primary
current is reduced which result in reduced conduction losses of switches and increase in efficiency.
