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Title: A single-stage direct-conversion AC-DC converter for inductively powered application
Authors: Low, Qiong Wei
Zhou, Mi
Siek, Liter
Keywords: Inductively Powered Application
ON-/OFF-mode Controller
DRNTU::Engineering::Electrical and electronic engineering
Issue Date: 2018
Source: Low, Q. W., Zhou, M., & Siek, L. (2018). A single-stage direct-conversion AC-DC converter for inductively powered application. IEEE Transactions on Very Large Scale Integration (VLSI) Systems, 26(5), 892-902. doi:10.1109/TVLSI.2018.2792494
Series/Report no.: IEEE Transactions on Very Large Scale Integration (VLSI) Systems
Abstract: An innovative single-stage ac-dc converter for low power, low frequency skin depth wireless power transfer is presented. The power conversion efficiency (PCE) of a wireless power receiver is limited by the cascaded two-stage design, which constitutes a rectifier and a voltage regulator. Owing to the proposed ON-/OFF-mode regulating rectifier, the voltage rectification and regulation are achieved simultaneously in one stage, thereby improving the PCE substantially. The output voltage regulation is accomplished by incorporating the pulse skipping modulation and the pulse frequency modulation control into the structure. In addition, there is no bulky inductor utilized in the proposed one-stage design. Therefore, the footprint and cost of the receiver can be minimized effectively. The proposed design has been fabricated in 0.18-μm standard CMOS process. Measurement results show that a peak power transfer efficiency of 93.48% is achieved at a regulated output voltage of 2 V in an output power range of 2-80 mW.
ISSN: 1063-8210
DOI: 10.1109/TVLSI.2018.2792494
Rights: © 2018 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. The published version is available at:
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:EEE Journal Articles

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