Nícolas Eugênio Lima Basquera, Gláucio Roberto Tessmer Hax, Caio Guilherme da Silva Moraes, G. Waltrich, J. Pomilio
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Small signal analysis for an arbitrary number of ZVS PSM FB converters in an Input-Parallel Output-Series configuration
The Zero Voltage Phase Shift Modulated Full Bridge (ZVS PSM FB) converter has been widely used for high frequency isolated dc-dc stage of dc charging stations for electric vehicles. One of the main challenges of this topology is to process high powers over a wide output voltage range. To overcome this issue, some studies have considered the association of multiples ZVS PSM FB converters in an Input Parallel Output Series (IPOS) configuration. This paper presents a small signal analysis that can be widely employed to characterize the transfer functions of this topology with an arbitrary number of converters in order to attend high power applications with a wide output voltage range.