@inproceedings{a4e385c244df462587fd2e8577f66290,
title = "A 700kHz 800V/14V GaN-based DC-DC Converter with optimized Integrated Transformer for Electrical Vehicles",
abstract = "This paper proposes a high-step-down DC-DC converter for electric vehicles (EVs) with 800V battery system. The output of the input series half bridge (ISHB) converter is reconstructed to reduce the DC blocking capacitor in secondary. The maximum duty cycle of the proposed converter can be larger than 0.5, which allows the use of larger leakage inductance. This turns out to be a crucial advantage to achieve fully range ZVS in high switching frequency over 500kHz. The two transformers are integrated with partial cancellation, resulting in 20\% of power loss and 32\% of footprint reduction. A prototype of 1.2kW base on GaN devices achieves a power density of 10.2kW/1. Obtained maximum efficiency was up to 93\%. Experiment results are provided to verify the proposed concepts.",
keywords = "DC-DC converter, auxiliary power module, electric vehicle, high frequency, high power density",
author = "Kieu, \{Huu Phuc\} and Donghan Lee and Sewan Choi and Sangiin Kim",
note = "Publisher Copyright: {\textcopyright} 2021 IEEE.; 13th IEEE Energy Conversion Congress and Exposition, ECCE 2021 ; Conference date: 10-10-2021 Through 14-10-2021",
year = "2021",
doi = "10.1109/ECCE47101.2021.9595023",
language = "English",
series = "2021 IEEE Energy Conversion Congress and Exposition, ECCE 2021 - Proceedings",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
pages = "5549--5553",
booktitle = "2021 IEEE Energy Conversion Congress and Exposition, ECCE 2021 - Proceedings",
}