A Novel Detailed Analysis of the Boost Converter Utilizing Nonlinear Inductance and Capacitance
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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Authors:
Mantzanas, Panagiotis; Bayrakdar, Erdi; Kuebrich, Daniel; Duerbaum, Thomas (Chair of Electromagnetic Fields, Friedrich Alexander University of Erlangen, Germany)
Abstract:
Magnetic components are essential in switched mode power supplies as they strongly influence the converter efficiency. Magnetic components inherently have a nonlinear inductance, which can be used beneficially. In addition, the parasitic capacitances of semiconductor devices introduce additional nonlinearities. Only by incorporating these nonlinearities in the analysis, a proper converter design is guaranteed. Thus, this paper proposes a novel calculation method for the boost converter including the nonlinear behavior of inductance and capacitances. The proposed calculation method combines a high computational efficiency as well as a high accuracy. Finally, a boost PFC converter with stepped air-gap inductor is investigated. Measurements confirm a total loss reduction of up to 18% in comparison to a conventional boost PFC.