Isolated Boost Converter with Bidirectional Operation for Supercapacitor Applications

Juan Carlos Hernandez Botella, Maria del Carmen Mira Albert, Gökhan Sen, Ole Cornelius Thomsen, Michael A. E. Andersen

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This paper presents an isolated bidirectional dc/dc converter based on primary parallel isolated boost converter (PPIBC). This topology is an efficient solution in low voltage high power applications due to its ability to handle high currents in the low voltage side. In this paper, the converter has been modeled using non-ideal components and operated without any additional circuitry for startup using a digital soft-start procedure. Simulated and measured loop gains have been compared for the validity of the model. On-the-fly current direction change has been achieved with a prototype interconnecting two battery banks. A second prototype has been constructed and tested for supercapacitor operation in constant power charge mode.
Original languageEnglish
JournalJournal of Power Electronics
Issue number4
Pages (from-to)507-515
Publication statusPublished - 2013


  • Battery
  • Bidirectional
  • Isolated
  • Modeling
  • Startup
  • Supercapacitor


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