Modified Basic DC-DC Converters

Conference: PCIM Europe 2018 - International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management
06/05/2018 - 06/07/2018 at Nürnberg, Deutschland

Proceedings: PCIM Europe 2018

Pages: 8Language: englishTyp: PDF

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Himmelstoss, Felix (UAS Technikum Wien, Hoechstaedtplatz 6, 1200 Wien, Austria)
Edelmoser, Karl (University of Technology Vienna, Institute for Energy Systems and Electrical Drives)

Changing the position of the output capacitor in such a way that it connects one input and one output terminal, modifies a DC-DC converter, here demonstrated with the basic buck, boost, and buck-boost topologies. The changes concern the input buffer capacitor C1, caused by a modified input current form and the necessary voltage across the capacitor C2. The dimensioning of the converter is compared to the values in the basic structures. Small signal models and transfer functions are derived and measurements of a converter realized with GaN semiconductor devices are shown.