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A comparative evaluation of isolated bi-directional DC/DC converters with wide input and output voltage range

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3 Author(s)
Krismer, F. ; Power Electron. Syst. Lab., Swiss Fed. Inst. of Technol., Zurich, Switzerland ; Biela, J. ; Kolar, J.W.

The working principles and design equations of four different isolated, bi-directional DC to DC converter topologies (a dual active bridge converter, a series resonant converter and two multiple stage topologies) for a 2 kW bi-directional battery charger that can be operated in a wide input and output voltage range are presented in this paper. The results of a detailed mathematical analysis of the converter topologies as well as digital simulation results are used to select the most efficient topology for this specific converter application, where the two-stage series resonant converter is identified to be the most promising, with up to 90% efficiency at rated power.

Published in:

Industry Applications Conference, 2005. Fourtieth IAS Annual Meeting. Conference Record of the 2005  (Volume:1 )

Date of Conference:

2-6 Oct. 2005

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