https://scholars.lib.ntu.edu.tw/handle/123456789/633633
標題: | A Gate Driver IC for GaN-Based Synchronous Buck Converter with A Double-Sided Adaptive Dead- Time Generator | 作者: | Thuc, Giao Huu CHING-JAN CHEN |
關鍵字: | Adaptive dead-time control | Coarse/Fine controllers | DC-DC converter | GaN devices | Gate Driver IC | Phase Error Detector | 公開日期: | 1-一月-2023 | 卷: | 2023-March | 來源出版物: | Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC | 摘要: | This paper proposes a gate driver IC for a GaN-based synchronous buck converter with a double-sided adaptive dead-time generator (DTG) to improve the converter efficiency with conventional fixed or single-sided DTG. It contains two main sub-blocks such as the phase error detector (PED) and the coarse/fine controllers. Applying the edge detection principle, the proposed dead-time control can minimize the dead-time and reverse conduction loss on both edges of the switching voltage, Vx, of a 1MHz 12 V to 5 V buck converter using e-mode GaN devices for 0.2 to 1 A load current range. The designed IC is fabricated with TSMC 0.18 μm HVG2 process. According to the post-simulation, the minimum dead time at 1 A load current is 28 ps. Compared with a 10 ns fixed DTG and single-sided DTG, efficiency is improved by 10% and 6%, respectively. |
URI: | https://scholars.lib.ntu.edu.tw/handle/123456789/633633 | ISBN: | 9781665475396 | DOI: | 10.1109/APEC43580.2023.10131397 |
顯示於: | 電機工程學系 |
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