Results 51 to 60 of about 6,053 (208)

Power MOSFET Linearizer of a High-Voltage Power Amplifier for High-Frequency Pulse-Echo Instrumentation

open access: yesSensors, 2017
A power MOSFET linearizer is proposed for a high-voltage power amplifier (HVPA) used in high-frequency pulse-echo instrumentation. The power MOSFET linearizer is composed of a DC bias-controlled series power MOSFET shunt with parallel inductors and ...
Hojong Choi   +3 more
doaj   +1 more source

Temperature‐Tunable Cholesteric Liquid Crystal Optical Combiners for Extended Reality Applications

open access: yesAdvanced Intelligent Systems, Volume 7, Issue 3, March 2025.
Recent advancements in extended reality highlight their potential to enhance traditional displays like liquid crystal displays and organic light‐emitting diode screens. This article introduces an innovative cholesteric liquid crystal‐based optical combiner for head‐mounted displays, enabling seamless transitions between augmented reality, virtual ...
Yuanjie Xia   +6 more
wiley   +1 more source

Bronchoscopy Robot with Enhanced Flexibility and Stability via Multi‐Segment Variable Stiffness Catheter

open access: yesAdvanced Intelligent Systems, EarlyView.
This work presents a magnetic bronchoscopy robot with a novel multi‐segment variable stiffness catheter. This catheter can not only move flexibly in the narrow bronchi but also harden according to the need to provide support. Combined with remote wireless magnetic field drive, it provides a more precise and effective solution for biopsy of deep lung ...
Shucong Yin   +10 more
wiley   +1 more source

A Novel 4H‐SiC MOSFET With High‐K/Low‐K Dielectric for Improved Frequency Characteristics

open access: yesIET Power Electronics
Split‐Gate MOSFET (SG‐MOSFET) is promising in power‐switching circuits due to the fast turn‐on/off speed and low switching loss. However, in higher‐frequency applications, the gate architecture needs to be changed to obtain the improved high‐frequency ...
Jiaxing Chen, Juntao Li, Lin Zhang
doaj   +1 more source

Physics‐Grounded Probabilistic Bits for Hardware‐Efficient Intelligent Inference and Optimization

open access: yesAdvanced Intelligent Systems, EarlyView.
Si–SiNx interface traps are harnessed as a complementary metal–oxide–semiconductor‐compatible source of controllable randomness for probabilistic bits. Pulse‐width‐programmed stochastic capture converts nanoscale defect dynamics into Boltzmann‐consistent binary outputs, while a physics‐based Simulation Program with Integrated Circuit Emphasis model ...
Dokyoung Lee   +3 more
wiley   +1 more source

Dual‐Field Synergistic Orientation of Carbon Fibers for High‐Efficiency Thermal Management

open access: yesCarbon Energy, EarlyView.
The sample fabricated by synergistically combining reversed electric and low magnetic fields, with photocurable PEG/PPG gel serving as the matrix, exhibits excellent machinability and flexibility. Meanwhile, the thermal conductivity enhancement efficiency of this work is 1351%, significantly superior to similar carbon fiber composite materials ...
Zujian Zhao   +15 more
wiley   +1 more source

Electrostatically Doped DSL Schottky Barrier MOSFET on SOI for Low Power Applications

open access: yesIEEE Journal of the Electron Devices Society, 2018
In this paper, we propose and simulate a novel Schottky barrier MOSFET (SB-MOSFET) with improved performance in comparison to the conventional SB-MOSFET. The proposed device employs charge plasma/electrostatic doping-based dopant segregation layers (DSLs)
Faisal Bashir   +2 more
doaj   +1 more source

A 40.68‐MHz Active Rectifier Using PLL and PWM Control of DC‐DC Converter for ON/OFF Delay Compensation

open access: yesInternational Journal of Circuit Theory and Applications, EarlyView.
A ramp‐based phase‐locked loop (RPLL) active rectifier operating at 40.68 MHz compensates switching delay variations to improve phase alignment. The proposed architecture achieves 90.3% peak power conversion efficiency and 98.0% voltage conversion ratio for high‐frequency wireless power transfer in implantable medical devices.
Woorim Lee   +5 more
wiley   +1 more source

Experimental electromagnetic compatibility of conducted electromagnetic interferences from an IGBT and a MOSFET in the power supply

open access: yesElectrical engineering & Electromechanics
Introduction. Most electromagnetic compatibility studies carried out in the context of power switch research are generally valid for low frequencies. This frequency restriction appears to be too restrictive for a complete analysis of the electromagnetic ...
M. E. Lahlaci, M. Miloudi, H. Miloudi
doaj   +1 more source

Subthreshold Time‐Mode All‐Digital DLL With Built‐In Linearization

open access: yesInternational Journal of Circuit Theory and Applications, EarlyView.
This paper presents a subthreshold time‐mode all‐digital delay‐locked loop (DLL) for low‐frequency clock generation. The large and tunable delay of the DLL is obtained using a static inverter delay line whose supply voltage is in the vicinity of 100 mV and adjustable by varying supply voltage. Phase error is processed by a time‐mode proportional block (
Fei Yuan, Wenhao Wu, Yushi Zhou
wiley   +1 more source

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