Results 11 to 20 of about 4,494,023 (283)

Current stress optimization control strategy of the buck topology with the variable frequency/amplitude mode

open access: yesFrontiers in Energy Research, 2023
The Buck circuit is a common topology in DC-DC converter. The existing control strategies have the advantages of short modulation time and high dynamic performance, but they also have the disadvantages of poor active modulation of the working mode of the
Ning Li   +5 more
doaj   +1 more source

Minimum current stress operation of dual active half-bridge converter using triple phase shift control for renewable energy applications

open access: yesEnergy Reports, 2022
With the development of renewable energy, dual active half bridge (DAHB) has been widely used in renewable energy systems. For the purpose of reducing the damage caused by excessive current stress and improve the operation performance of the DAHB, this ...
Jianyu Zhang   +5 more
doaj   +1 more source

Current status of stress echocardiography [PDF]

open access: yesClinical Cardiology, 2000
AbstractStress echocardiography is a widely applied technique for the evaluation of individuals with known or suspected coronary artery disease. The technique combines echocardiographic imaging with exercise testing or pharmacologic stress. Advances in digital image acquisition and harmonic imaging have substantially improved the quality of ...
openaire   +2 more sources

Thermo-mechanical stress of bonded wires used in high power modules with alternating and direct current modes [PDF]

open access: yes, 2012
Today, power electronic reliability is a main subject of interest for many companies and laboratories. The main process leading to the IGBT failure is the cycling thermal stress.
Medjahed, Hassen   +2 more
core   +4 more sources

Direct power control of dual-active-bridge dc–dc converters based on unified phase shift control

open access: yesThe Journal of Engineering, 2019
Dual-active-bridge (DAB) dc–dc converters are the important part of the transformerless electric traction drive system in railway application. Also the dynamic characteristic of DAB converters in the electric traction drive system is very significant ...
Feng An, Wensheng Song, Kexin Yang
doaj   +1 more source

Optimization of current stress for Dual Active Bridge converter based on power compensation control

open access: yesEnergy Reports, 2023
With the rapid development and application of renewable energy, the advantages of DC distribution system are becoming more and more obvious. In the DC distribution system, the DC transformer is a component that connects different voltage DC bus and ...
Xinyu Cui, Feng Wang, Fang Zhuo
doaj   +1 more source

Pascalammetry with operando microbattery probes: Sensing high stress in solid-state batteries. [PDF]

open access: yes, 2018
Energy storage science calls for techniques to elucidate ion transport over a range of conditions and scales. We introduce a new technique, pascalammetry, in which stress is applied to a solid-state electrochemical device and induced faradaic current ...
Burson, Kristen   +5 more
core   +2 more sources

More than a feeling: A unified view of stress measurement for population science. [PDF]

open access: yes, 2018
Stress can influence health throughout the lifespan, yet there is little agreement about what types and aspects of stress matter most for human health and disease.
Crosswell, Alexandra D   +6 more
core   +2 more sources

Recovery of Stress During the Interseismic Period Around the Seismogenic Fault of the 1995 Mw 6.9 Kobe Earthquake, Japan

open access: yesGeophysical Research Letters, 2018
We analyzed the current stress state on the Nojima Fault, the source of the 1995 Mw 6.9 Kobe (Japan) earthquake, using breakouts in a borehole through the fault to a depth of ~1,000 m in 2017. The main fault was found at a depth of 529.3 m, with a damage
Takafumi Nishiwaki   +2 more
doaj   +1 more source

A Unified Analysis of DC–DC Converters’ Current Stress

open access: yesEnergies, 2023
There is always a need to analyze current signals generated by various DC–DC converters. For example, to determine the current stress experienced by semiconductor devices and to evaluate active and reactive power consumption in converters.
Michael Njoroge Gitau   +2 more
doaj   +1 more source

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