Paper Info
Title
A Pre-Charge Tracking Technique in the 40 MHz High-Speed Switching 48-to-5 V GaN-Based DC–DC Buck Converter for Reducing Large Self-Commutation Loss and Achieving a High Efficiency of 95.4%
Abstract
For automobile applications, a high-speed switching 48-to-5 V dc–dc buck converter is implemented in the 0.5- <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math notation="LaTeX">$\mu \text{m}$ </tex-math></inline-formula> CMOS and 0.5- <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math notation="LaTeX">$\mu \text{m}$ </tex-math></inline-formula> gallium nitride (GaN)-on-Si processes. This proposed converter includes a pre-charge tracking technique, a temperature-dependent controlled gate driver, and an adaptive relaxation gate drive control technique. The measurement results of this article show that the efficiency can be increased by about 10.3% and can ensure the driving current capacity of enhance GaN (E-GaN). The built-in local negative feedback loop improves the reliability and reduces <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math notation="LaTeX">$R_{\mathrm{\scriptscriptstyle ON}}$ </tex-math></inline-formula> by 21% to reach the peak efficiency as high as 95.4%.
Year
DOI
Venue
2022
10.1109/JSSC.2022.3150150
IEEE Journal of Solid-State Circuits
Keywords
DocType
Volume
Enhance GaN,gallium nitride,power density,reliability,temperature-dependent controlled gate driver
Journal
57
Issue
ISSN
Citations 
7
0018-9200
1
PageRank 
References 
Authors
0.38
3
7
Name
Order
Citations
PageRank
Tzu-Hsien Yang111.06
Yong-Hwa Wen210.72
Chun-Kai Chiu310.72
Ke-Horng Chen437990.04
Ying-Hsi Lin532.22
Shian-Ru Lin642.58
Tsung-Yen Tsai742.58