Article
Engineering, Electrical & Electronic
Prescott H. McLaughlin, Jan S. Rentmeister, M. Hassan Kiani, Jason T. Stauth
Summary: This article explores the merits of a variety of hybrid resonant switched-capacitor (SC) dc-dc converters under strict size constraints on passive components, comparing topologies using a minimum power loss figure of merit. The impact of area or volume constraints on inductors and capacitors is demonstrated. Common topologies are compared using the generalized FOM under different scaling scenarios and validated using an experimental prototype.
IEEE TRANSACTIONS ON POWER ELECTRONICS
(2021)
Article
Computer Science, Information Systems
Maide Bucolo, Arturo Buscarino, Carlo Famoso, Luigi Fortuna, Salvina Gagliano
Summary: This research explores the possibility of designing imperfect electronic circuits to generate chaotic flow, where imperfections can lead to unexpected complex behaviors. By tuning a variable resistor, specific bandwidths of chaotic flow can be achieved. A strategy for estimating hidden dynamic parameters and synchronizing chaotic circuits is proposed.
Article
Materials Science, Multidisciplinary
Sha Jiang, Xing Xu, Chao Fan, Long Chen, Lei Shen, Qi Deng, Xue Xia, Qinglin Zhang
Summary: This study reports a universal method for efficiently integrating various semiconductor wires on a large scale, which involves in-plane integration of metal halide perovskite CsPbBr3 wire arrays with Sb2Se3, PbSe, and CdS wires on mica substrates. The CsPbBr3 wire arrays can act as both the light emitting media and waveguide, guiding the emission into the backbone Sb2Se3 wire. The constructed CsPbBr3 waveguide arrays/Sb2Se3 wire photodetector system exhibits a photocurrent of 73.4 nA with an on/off ratio of 111, and a rapid response speed.
ADVANCED OPTICAL MATERIALS
(2023)
Article
Physics, Applied
Oscar Lee, Robin Msiska, Maarten A. Brems, Mathias Klaeui, Hidekazu Kurebayashi, Karin Everschor-Sitte
Summary: Learning and pattern recognition require memory, which is simulated artificially in conventional CMOS hardware. Dynamical systems naturally provide the necessary memory, complexity, and nonlinearity for unconventional computing approaches. This article focuses on reservoir computing and provides an overview of key physical reservoir works, particularly in the promising platform of magnetic structures, such as skyrmions, for low-power applications. The article also discusses skyrmion-based implementations of Brownian computing, leveraging thermal fluctuations in skyrmion systems, and outlines the important challenges in this field.
APPLIED PHYSICS LETTERS
(2023)
Article
Thermodynamics
Fucheng Chang, Yuhao Shang, He Hu, Xi Li, Kaikai Guo, Huixiong Li
Summary: In this paper, the film boiling of magnetic nanofluid in non-uniform magnetic fields generated by current carrying wires has been numerically studied. The influence of the non-uniform magnetic field on the film boiling process has been analyzed, and it is found that the magnetic field can promote or inhibit the growth and departure of vapor bubbles. Additionally, the effect of multiple current carrying wires on the heat transfer performance of the nanofluid film boiling has been explored, and it is found that the coexistence of multiple wires can further enhance the heat transfer.
INTERNATIONAL JOURNAL OF THERMAL SCIENCES
(2022)
Article
Chemistry, Multidisciplinary
Liang Li, Shayan Louie, Austin M. Evans, Elena Meirzadeh, Colin Nuckolls, Latha Venkataraman
Summary: Molecular one-dimensional topological insulators (1D TIs) that conduct through low-lying topological edge states have potential for nanoelectronic devices. To observe these effects at longer lengths, we design topological oligo[n]emeraldine wires using short 1D TIs as building blocks. As the wire length increases, the number of topological states increases, enabling increased electronic transmission. The longest oligo[7]emeraldine with doped topological states has over 106 enhancements in transmission compared to its pristine form.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Engineering, Electrical & Electronic
Hayden Bialek, Matthew L. Johnston, Arun Natarajan
Summary: This article presents a novel architecture for low-power RXs that achieves low power consumption, high sensitivity, and interferer tolerance. The proposed architecture performs well in terms of operating range, sensitivity, and power consumption.
IEEE JOURNAL OF SOLID-STATE CIRCUITS
(2023)
Article
Automation & Control Systems
Lin Lin, Jinde Cao, Shiyong Zhu, Peng Shi
Summary: This article investigates the application of finite-field networks (FFNs) in multiagent systems and introduces the concept of stochastic FFNs (SFFNs), which switch among different modes based on independently and identically distributed processes. The definitions of asymptotic synchronization with probability one, finite-time synchronization, and fixed-time synchronization of SFFNs are presented. The necessary and sufficient conditions for asymptotic synchronization and fixed-time synchronization are derived based on transition graph and network matrix. Interesting characteristics of synchronous SFFNs are revealed compared to logical networks and real-valued networks. The relations among asymptotic synchronization, fixed-time synchronization, finite-time synchronization, and the synchronization of each mode are established.
IEEE TRANSACTIONS ON AUTOMATIC CONTROL
(2022)
Article
Automation & Control Systems
Sajad Arab Ansari, Jonathan N. Davidson, Martin P. Foster
Summary: This article presents two topologies for high leakage inductance in shunt-inserted integrated magnetic transformers. The topologies use high-permeability magnetic shunt segments and small air gaps to replace the conventional low-permeability shunt, achieving the same bulk permeability while using lower cost magnetic materials. The article provides modeling and design methods to accurately estimate leakage and magnetizing inductances, and verifies them through theoretical analysis, finite-element analysis, and experimental implementation. The performance of the proposed topologies is confirmed through the construction of an LLC resonant converter, showing reduced volume and cost.
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
(2022)
Article
Engineering, Electrical & Electronic
Manuel Escudero, Sabina Spiga, Mauro Di Marco, Mauro Forti, Giacomo Innocenti, Alberto Tesi, Fernando Corinto, Stefano Brivio
Summary: This paper presents a framework for the physical implementation of a tunable memristor Chua's circuit and successfully generates different oscillation patterns by programming a nonvolatile memristive device to different states. The characterization and modeling of the real device were used to extend the experimental work and draw further requirements for successful circuit implementation.
IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-REGULAR PAPERS
(2023)
Article
Mathematics, Interdisciplinary Applications
Christophe Letellier, Nataliya Stankevich, Otto E. Roessler
Summary: Accurately characterizing chaotic behaviors is a complex problem that requires classification and labeling to determine the shared properties and differences between chaotic behaviors. Starting from the Lyapunov exponent spectrum, we extended the description of chaotic behaviors, proposed higher-level classification methods, and expanded the description to multi-component attractors using a linker.
INTERNATIONAL JOURNAL OF BIFURCATION AND CHAOS
(2022)
Article
Engineering, Electrical & Electronic
Sangyeong Jeong, Junsik Park, Jingook Kim
Summary: This article introduces an active electromagnetic interference (EMI) filter using a customized integrated circuit (IC) with an injection transformer for high reliability and better noise attenuation performance compared to passive EMI filters. Experimental validation confirms the performance and stability of the proposed 1stage AEF.
IEEE TRANSACTIONS ON POWER ELECTRONICS
(2021)
Article
Engineering, Electrical & Electronic
Zhenkai Cao, Wu Chen, Zhan Shen, Yichen Chen, Long Jin, Dajun Ma, Biao Zou
Summary: This article proposes an orthogonal decoupling magnetic integrated structure (ODMIS) to reduce the volume of the transformer and inductor in a DAB converter. ODMIS achieves the magnetic decoupling of the transformer and inductor and provides optimized decoupling conditions to minimize core loss. Experimental results demonstrate that ODMIS has high overall efficiency and power density.
IEEE TRANSACTIONS ON POWER ELECTRONICS
(2022)
Article
Chemistry, Physical
Liang Li, Colin Nuckolls, Latha Venkataraman
Summary: In this study, a new design is presented where multiple short one-dimensional topological insulator (1DTI) units are connected linearly or cyclically to create molecular wires with continuous topological state density. Using tight-binding methods, it is shown that the conductance of the linear system is independent of length, while the cyclic systems exhibit an interesting odd-even effect. Based on calculations, resonant transmission with a quantum of conductance is predicted for these systems. These findings are further extended to phenylene-based linear and cyclic 1DTI systems, confirming the length-dependent conductance in such systems.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2023)
Article
Mathematics, Interdisciplinary Applications
Yujiao Dong, Shuting Yang, Yan Liang, Guangyi Wang
Summary: Due to the limitations of Moore's Law and von Neumann computing architecture, neuromorphic computing is a better choice for information processing. This paper proposes a tri-stable locally active memristor model to study the neuromorphic dynamics of memristive neurons. The memristive circuits can generate various neuromorphic patterns near the edge of chaos, demonstrating their potential as memristive neurons.
CHAOS SOLITONS & FRACTALS
(2022)