An LLC Converter for Power Switch Evaluation in Resonant Topology and back-to-back Loading Method
Conference: PCIM Conference 2025 - International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management
05/06/2025 - 05/08/2025 at Nürnberg, Germany
doi:10.30420/566541400
Proceedings: PCIM Conference 2025
Pages: Language: englishTyp: PDF
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Authors:
Turscak, Tomislav; Kamimura, Paulo Katsuyuki Muraishi
Abstract:
This paper presents a SiC MOSFET-based DC-DC converter design for evaluating power switches in a resonant circuit, common for EV charging applications. The LLC resonant circuit was developed using the first harmonic approximation method. The control was implemented by introducing a hardware-in-the-loop (HIL) setup. The back-to-back loading method reduces laboratory equipment constraints and lowers the power dissipation. A modular approach was incorporated in the system design with the capability to deliver a maximum power of 20 kW with up to three MOSFETs in parallel. Simulation and measurements were conducted for two different SiC MOSFET generations and the results were compared.