A Simplified SPICE Model for Fast Parametric Optimization of High Voltage Power Electronic Circuits in the Megahertz Range
Konferenz: CIPS 2016 - 9th International Conference on Integrated Power Electronics Systems
08.03.2016 - 10.03.2016 in Nürnberg, Deutschland
Tagungsband: CIPS 2016
Seiten: 6Sprache: EnglischTyp: PDF
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Autoren:
Stubenrauch, Franz; Seliger, Norbert (Hochschule Rosenheim, 83024 Rosenheim, Germany)
Schmitt-Landsiedel, Doris (Technische Universiät München, 80333 München, Germany)
Inhalt:
An accurate SPICE model is proposed in this paper to calculate the power losses of high voltage converter systems. This supports power circuit optimization in the very first design stage. The parasitic package inductances and the nonlinear voltage dependent semiconductor capacitances are taken into account. In addition the high frequency behavior of the power inductor is investigated. A detailed loss breakdown is done to analyze the main sources of power loss and their physical reasons. The simulation results of the converter waveforms and of its efficiency match very well to the experimental results. The prototype boost converter shows a top efficiency greater than 98.3 % at a switching frequency of 1 MHz and an output voltage of 400 V at the maximum output power of 1 kW.