標題: A Temperature Compensated 61-W Class-E Soft-Switching GaN-Based Active Diode Rectifier for Wireless Power Transfer Applications
作者: Yang, Shang-Hsien
Chen, Ke-Horng
Lin, Ying-Hsi
Lin, Shian-Ru
Tsai, Tsung-Yen
電機工程學系
Department of Electrical and Computer Engineering
關鍵字: Auto-zeroing (AZ);GaN;soft-switching;temperature compensation;wireless power transfer
公開日期: 1-Jan-2019
摘要: The proposed 6.78-MHz Class-E receiver features a soft-switching and temperature-compensated GaN-based active diode (GAD) rectifier design. Using the temperature dependence of the relationship between the driving voltage and the on-resistance of the switch, the gate-source control voltage of GaN can be adjusted to mitigate efficiency variations based on temperature effects. Moreover, a phase shift comparator activation controller is based on the direct relationship between the phase delay on the gate drive signals and the output power. The temperature dependency voltage offset of the comparator is alleviated with auto-zeroing. GAD rectifier ensures energy transfer up to 61 W and 6.8 A, high efficiency of 92%, and low harmonic distortion of 2.1%.
URI: http://dx.doi.org/10.1109/LSSC.2019.2930912
http://hdl.handle.net/11536/154005
ISBN: 978-1-7281-1550-4
ISSN: 1930-8833
DOI: 10.1109/LSSC.2019.2930912
期刊: IEEE 45TH EUROPEAN SOLID STATE CIRCUITS CONFERENCE (ESSCIRC 2019)
起始頁: 203
結束頁: 0
Appears in Collections:Conferences Paper