Abstract
This paper presents a novel integrated half-bridge driver architecture using GaN-on-Si process for high-speed and high-voltage DC-DC converters. The entire circuit includes only enhancement mode (E-mode) and depletion-mode (D-mode) GaN transistors. The high-side driver circuit adopts the E-stacked E/D-mode (EED) architecture, which can directly drive the gate of the high-side transistor with a low-voltage signal without using an additional level shifter, which simplifies the design and reduces propagation delay. In addition, the low-side power transistor is driven by stacking two D/E-mode devices. This architecture separates the high-side pulse from the low-side drive signal to prevent false triggering of the low-side driver. The designed fully integrated GaN driver can output a high-voltage pulse wave with an operating frequency greater than 1 MHz when the input voltage is greater than 200 V. The rise and fall times of the high-voltage pulse wave operating at a peak voltage of 200 V are 54.4 ns and 57.6 ns, respectively. The experimental results show that the circuit can effectively drive the half-bridge circuit and be applied to a buck converter. The designed buck converter can deliver up to 20.5 W of output power, and the maximum efficiency achieves 90.7%.
Funder
the ministry of science and technology, Taiwan, R.O.C.
Subject
Fluid Flow and Transfer Processes,Computer Science Applications,Process Chemistry and Technology,General Engineering,Instrumentation,General Materials Science
Cited by
5 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献
1. The role of gallium nitride in the evolution of electric vehicles: Energy applications, technology, and challenges;Applied Physics Reviews;2024-09-01
2. Analysis of a Gate-Driving Technique for Enhancing the GaN Power Transistors Performance;2023 IEEE 2nd Industrial Electronics Society Annual On-Line Conference (ONCON);2023-12-08
3. Integrated All-GaN Driver for High-voltage DC-DC Power Converters;2023 20th International SoC Design Conference (ISOCC);2023-10-25
4. A Wide Input Range High Temperature Resistant Buck DC-DC Converter;2023 International Technical Conference on Circuits/Systems, Computers, and Communications (ITC-CSCC);2023-06-25
5. Integrated GaN digital soft start-up for switching power converters;2023 18th Conference on Ph.D Research in Microelectronics and Electronics (PRIME);2023-06-18