학술논문
Floating-Domain Integrated GaN Driver Techniques for DC–DC Converters: A Review
Document Type
Periodical
Author
Source
IEEE Transactions on Circuits and Systems I: Regular Papers IEEE Trans. Circuits Syst. I Circuits and Systems I: Regular Papers, IEEE Transactions on. 70(9):3790-3805 Sep, 2023
Subject
Language
ISSN
1549-8328
1558-0806
1558-0806
Abstract
This paper presents the design challenges and advanced circuit techniques of integrated gate drivers for non-isolated buck converters using gallium nitride (GaN) devices to achieve fast switching and high conversion efficiency. Focusing on the essential tradeoff considerations, we first explain the detailed circuit-level issues of realizing normal and safe operations regarding integration feasibility, device safety, operation reliability, and power-stage loss alleviation when driving a GaN switch. Accordingly, we review the state-of-the-art techniques for improving various aspects of the performance, including on-chip bootstrapping enhancement, over-voltage and false-switching prevention, electromagnetic interference (EMI) noise suppression, and adaptive driving optimization. We further highlight the feature advantage of distinct techniques in specific performance/function aspects, aiming to bring GaN driver design insights and providing technical references regarding the technical superiority and limitations of improving the overall converter performance.