Yunfei Yang

ORCID: 0000-0003-0106-1203
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About
Contact & Profiles
Research Areas
  • Advanced DC-DC Converters
  • Wireless Power Transfer Systems
  • Photovoltaic System Optimization Techniques
  • Microgrid Control and Optimization
  • Multilevel Inverters and Converters

Tongji University
2022-2025

This paper presents a fully soft-switching resonant forward converter, whose primary side adopts an active-clamp structure to achieve adjustable on-time of the main switch, and secondary boost switch boost-type voltage gain regulation high efficiency. Based on proper parameter design, across capacitor, as well drain-source can decrease zero each cycle, allowing switching for switch. Therefore, penalty associated with widened range is alleviated. To further improve efficiency, two...

10.1109/tcsi.2024.3524059 article EN IEEE Transactions on Circuits and Systems I Regular Papers 2025-01-01

This brief proposes a three-port resonant forward topology for low power applications. Specifically, modified boost converter, which adds controllable freewheeling path, is combined with converter to simultaneously fulfill PV voltage regulation and battery charging management. Then, by taking the benefit of more flexible flow adjustment, can adaptively share load current reduced conversion stages. Therefore, in comparison other LLC-type converters, proposed scheme achieves better compromise...

10.1109/tcsii.2022.3199335 article EN IEEE Transactions on Circuits & Systems II Express Briefs 2022-08-15
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