D-Mode GaN HEMT with Direct Drive

Vanessa Heumesser*, Jih Sheng Lai, Hsin Che Hsieh, Johnny Hsu, Chih Yi Yang, Edward Y. Chang, Hsiu Kuei Ko, Wen Hung Liu, Yu Min Lin

*此作品的通信作者

研究成果: Conference contribution同行評審

摘要

A direct-driven gate driver circuit has been developed for the depletion-mode gallium nitride (d-mode GaN) high electron mobility transistor (HEMT), which is a'normally on'' device and is typically connected in series with a low-voltage power MOSFET to prevent shoot-through faults. The switching of such a''cascode'' device is substantially delayed due to a large MOSFET input capacitance. This paper introduces a charge-pump based direct-driven approach to provide a negative voltage in the gate drive loop so that the device becomes 'normally off The switching characteristics of the direct-driven HEMT is analyzed through computer simulation and hardware testing. Results indicate that the switching delays due to MOSFET gating is eliminated, and the voltage slew rate can be directly controlled by the gate resistance.

原文English
主出版物標題WiPDA Asia 2023 - IEEE Workshop on Wide Bandgap Power Devices and Applications in Asia
發行者Institute of Electrical and Electronics Engineers Inc.
ISBN(電子)9798350337112
DOIs
出版狀態Published - 2023
事件2023 IEEE Workshop on Wide Bandgap Power Devices and Applications in Asia, WiPDA Asia 2023 - Hsinchu, Taiwan
持續時間: 27 8月 202329 8月 2023

出版系列

名字WiPDA Asia 2023 - IEEE Workshop on Wide Bandgap Power Devices and Applications in Asia

Conference

Conference2023 IEEE Workshop on Wide Bandgap Power Devices and Applications in Asia, WiPDA Asia 2023
國家/地區Taiwan
城市Hsinchu
期間27/08/2329/08/23

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