Article
Engineering, Electrical & Electronic
Aldo Canova, Fabio Corti, Antonino Laudani, Gabriele Maria Lozito, Michele Quercio
Summary: This paper introduces a passive shielding system to mitigate the undesired dispersion of the magnetic field produced by a wireless power transfer system. The shield is optimized to achieve better shielding effectiveness and the impact on the performance of the system is evaluated.
IET POWER ELECTRONICS
(2023)
Article
Engineering, Electrical & Electronic
Qing Xu, Duleepa J. Thrimawithana, Darren Svirskis, Ilva D. Rupenthal
Summary: This paper proposes a mutually decoupled transmission and receiver coil (MDC) system to improve the sensitivity of inductively coupled communication. The system is designed to be mounted on the frame of a spectacle and transfer detectable voltage signals through weak inductive coupling with an implant measuring intraocular pressure (IOP). The transmission coils excite the implant, while the decoupled receiver coils continuously monitor the self-resonant frequency of the implant to determine the IOP. Simulation and experimental results show the effectiveness of the MDC system in improving sensitivity.
IET POWER ELECTRONICS
(2023)
Article
Engineering, Electrical & Electronic
Lingling Cao, Jiawei Bao, Ka-Hong Loo, Xuewei Pan, Ruihong Zhang
Summary: This paper thoroughly discusses the cross-coupling effect in a two-load IPT system, proposing a new model that considers this effect. The suggested control strategy includes adjusting the operating frequency and regulating the total output power and input impedance through coordinated adjustment of the inverter's duty cycle and transmitter-side compensation capacitance. The proposed hybrid control strategy ensures constant power distribution among loads, constant total output power, and inductive input impedance for zero voltage switching in the inverter.
IET POWER ELECTRONICS
(2023)
Review
Chemistry, Multidisciplinary
Vijayanandam Nithiyanandam, Vidhya Sampath
Summary: This article provides a philosophical analysis of recent methodologies and techniques for efficient WPT in implantable devices based on different approaches. The working principle and outcomes of each recent powering method are discussed and mapped, while highlighting the performance, efficiency, operating frequency, and stability of the systems.
APPLIED SCIENCES-BASEL
(2023)
Article
Energy & Fuels
Mattia Simonazzi, Ugo Reggiani, Leonardo Sandrolini
Summary: This study investigates the possibility of increasing transmission efficiency in mid-range wireless power transfer applications by inserting resonant relay coils. The results show that the current distribution depends on the load and receiver position, and the theoretical findings are validated through experimental measurements.
Article
Automation & Control Systems
Jianwei Mai, Yijie Wang, Xianrui Zeng, Yousu Yao, Kang Wu, Dianguo Xu
Summary: Inductive power transmission is widely used in industries, but the adverse effect of the parasitic capacitance of the coil has been a long-term problem, affecting efficiency and quality factor. This study proposes a solution by connecting compensation capacitors in series to the coil sections to reduce losses. The designed system, with a diameter of 502 mm and a thickness of 22 mm, can transmit 115.2 W of power within a distance of two meters with an efficiency of 29%.
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
(2022)
Article
Chemistry, Analytical
Juan M. Romero-Arguello, Anh-Vu Pham, Christopher S. Gardner, Brad T. Funsten
Summary: This paper presents the design and development of miniature coils for wireless power and data transfer through metal, demonstrating successful power and data transfer through aluminum using harvested power.
Review
Engineering, Electrical & Electronic
Mohammad Javad Karimi, Alexandre Schmid, Catherine Dehollain
Summary: This paper provides a systematic review and survey of the latest inductive power and data transmission methods for implantable medical devices (IMDs), covering principles, design parameters, power transfer efficiency, optimization methods, and performance comparisons.
IEEE SENSORS JOURNAL
(2021)
Article
Engineering, Electrical & Electronic
Mengna Luo, Zhicong Huang
Summary: This paper analyzes the key factors that cause current unbalance in the inductive power transfer system with multiple parallel branches. It studies the equivalent circuit model and designs a compensation circuit for achieving current balance. Two current balance methods are also investigated. The parameter design criteria for obtaining an ideal current balance effect are detailed, along with the characteristic analysis, parameter design, and verification.
IET POWER ELECTRONICS
(2023)
Article
Engineering, Electrical & Electronic
Nikola Rajko Mirkovic, Dorde M. Stojic, Alberto Delgado, Pedro Alou, Miroslav Vasic
Summary: In recent years, there has been a trend towards reducing the number of power conversion stages in electric vehicle charging applications. Matrix converter topology is seen as an attractive solution due to its high power density and small volume. This article proposes a novel modulation strategy for a three-phase to single-phase matrix converter, which ensures stable power flow between the grid and the EV. Experimental results demonstrate the effectiveness of the proposed method.
IEEE TRANSACTIONS ON POWER ELECTRONICS
(2023)
Article
Engineering, Electrical & Electronic
Alexis Narvaez, Claudio Carretero, Ignacio Lope, Jesus Acero
Summary: The article presents the optimization procedure of an inductive power transmission (IPT) system using large size spiral printed circuit board (PCB) coils for high-power transfer. The use of PCBs for coil assembly provides advantages in the manufacturing process and offers a low-profile device suitable for space-constrained applications. The study explores the application of Litz-structure braiding techniques to achieve high energy efficiency in the PCB-based IPT system coils.
IEEE TRANSACTIONS ON TRANSPORTATION ELECTRIFICATION
(2023)
Article
Multidisciplinary Sciences
Danilo Brizi, Agostino Monorchio
Summary: This paper presents a general equivalent-circuit interpretation of finite magnetic metasurfaces interacting with an arbitrary arrangement of RF coils operating in the near-field regime. The introduced model provides a physical interpretation and guidelines for the design and understanding of such interactions. The validity of the model is demonstrated through test cases and comparison with experimental measurements.
SCIENTIFIC REPORTS
(2022)
Article
Engineering, Electrical & Electronic
Kaibo Chen, Zhen Zhang
Summary: As a novel research topic, in-flight wireless charging shows great potential in terms of development and application due to its ability to address the short duration limitation of electric-driven drones. The article introduces three major technical challenges unique to in-flight wireless charging, discusses emerging solutions from four perspectives, and concludes by inspiring more innovative solutions from worldwide researchers.
IEEE INDUSTRIAL ELECTRONICS MAGAZINE
(2023)
Article
Physics, Multidisciplinary
Fabrizio Antenucci, Giovanni Lerario, Blanca Silva Fernandez, Luisa De Marco, Milena De Giorgi, Dario Ballarini, Daniele Sanvitto, Luca Leuzzi
Summary: Experimental evidence of nonlinear mode coupling in random lasers has been provided, demonstrating the occurrence of mode locking in these lasers and opening up new development possibilities for the design and use of nanostructured devices.
PHYSICAL REVIEW LETTERS
(2021)
Article
Energy & Fuels
Songyan Niu, Qingyu Zhao, Haibiao Chen, Hang Yu, Shuangxia Niu, Linni Jian
Summary: This paper analyzes, designs, and optimizes a 6.0 kW underwater wireless charging system (WCS) that achieves a good balance between power capacity, misalignment tolerance, and receiver weight. By employing a multi-receiving-coil structure and different coil shapes, the system achieves high power transmission and large misalignment tolerance. Additionally, the weight of the receiver is effectively reduced using bar-shaped ferrite.
Article
Multidisciplinary Sciences
Sid Assawaworrarit, Xiaofang Yu, Shanhui Fan
Article
Nanoscience & Nanotechnology
Xiaofang Yu, Torbjorn Skauli, Bjorn Skauli, Sunil Sandhu, Peter B. Catrysse, Shanhui Fan
Article
Physics, Applied
Xunya Jiang, Chuanhong Zhou, Xiaofang Yu, Shanhui Fan, Marin Soljacic, J. D. Joannopoulos
APPLIED PHYSICS LETTERS
(2007)
Article
Physics, Applied
Xiaofang Yu, Xunya Jiang, Shanhui Fan
APPLIED PHYSICS LETTERS
(2007)
Article
Optics
XF Yu, WT Lau, SH Fan
Article
Physics, Fluids & Plasmas
XF Yu, SH Fan
Article
Physics, Applied
XF Yu, SH Fan
APPLIED PHYSICS LETTERS
(2003)