Results 111 to 120 of about 2,447,475 (350)

Investigation on filter requirements and stability effects of SiC MOSFET-based high-frequency grid-connected converters

open access: yesThe Journal of Engineering, 2019
The new era of power semiconductor devices is exploiting the high potential of wide bandgap device-based high-frequency power converters. The advanced capabilities of Silicon carbide (SiC) semiconductors allow the power converters to switch at higher ...
Blessy John   +3 more
doaj   +1 more source

β‐Catenin/c‐Myc Axis Modulates Autophagy Response to Different Ammonia Concentrations

open access: yesAdvanced Biology, Volume 9, Issue 3, March 2025.
Ammonia, detoxified by the liver into urea and glutamine, impacts autophagy differently at varying levels. Low ammonia activates autophagy via c‐Myc and β‐catenin, while high levels suppress it. Using Huh7 cells and Spf‐ash mice, c‐Myc's role in cytoprotective autophagy is revealed, offering insights into hyperammonemia and potential therapeutic ...
S. Sergio   +11 more
wiley   +1 more source

High-resolution FPGA-pulse width modulation applied to PFC 2 MHz converter using eGaN field effect transistor

open access: yesThe Journal of Engineering, 2019
This study proposes an implementation based on a low-cost field-programmable gate array (FPGA) of a high-resolution pulse width modulation applied on a single-phase power factor correction (PFC) converter operating with 2 MHz switch frequency.
José Augusto Arbugeri   +2 more
doaj   +1 more source

Reliability Demonstration Approach for Advanced Stirling Radioisotope Generator [PDF]

open access: yes, 2010
Developed for future space missions as a high-efficiency power system, the Advanced Stirling Radioisotope Generator (ASRG) has a design life requirement of 14 yr in space following a potential storage of 3 yr after fueling.
Ha, CHuong   +3 more
core   +1 more source

A Switching Hybrid LCC-S Compensation Topology for Constant Current/Voltage EV Wireless Charging

open access: yesIEEE Access, 2019
Wireless power transfer (WPT) technology has been widely applied to automobile industries, household electronics and medical devices because of its many advantages.
Yafei Chen   +3 more
semanticscholar   +1 more source

Planar Solid‐State Nanopores Toward Scalable Nanofluidic Integration Based on CMOS Technology

open access: yesAdvanced Engineering Materials, EarlyView.
We present a scalable silicon‐based fabrication strategy for planar solid‐state nanopores to enable their integration with complex nanofluidic systems. Prototype devices demonstrate normal voltage‐current characteristics, good noise performance, and appreciable streaming currents. Our CMOS‐compatible fabrication process offers precise geometric control
Ngan Hoang Pham   +7 more
wiley   +1 more source

High-voltage switch-mode assisted linear amplifier based voltage source for dielectric low frequency-domain spectroscopy measurements

open access: yesThe Journal of Engineering, 2019
This study presents a switch-mode assisted linear amplifier (SMALA) designed for use as a frequency-domain spectroscopy (FDS) excitation voltage source for the diagnostic testing of oil/paper insulation systems in large power transformers.
Shawn D. Nielsen   +2 more
doaj   +1 more source

Nonlinear phenomena of the buck-boost converter analyzed by storage energy [PDF]

open access: yes, 2014
Author name used in this publication: K. W. E. ChengAuthor name used in this publication: Z. H. ShiAuthor name used in this publication: K.
Cheng, KWE, Ding, K, Shi, Z, Xu, C
core  

Modeling and Controlling Strategy of Four-Switch Buck-boost Convertor with Smooth Mode Transitions

open access: yesThe Open Electrical & Electronic Engineering Journal, 2017
Four-switch synchronous buck-boost (FSBB) converter is much suitable for battery management system for its characteristic of wide input voltage range, high efficiency, and positive voltage output. A three mode control scheme with two modulation signals and one carrier can be adopted to achieve the smooth transition among modes.
Wei-zhong Zhang   +3 more
openaire   +1 more source

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