Results 71 to 80 of about 5,302 (227)

A novel current‐source management integrated circuit applied to high‐voltage integrated gate commutated thyristor gate driver

open access: yesHigh Voltage, Volume 10, Issue 3, Page 533-545, June 2025.
Abstract This paper presents a fully customised integrated gate commutated thyristor (IGCT) gate driver monolithic integrated circuit (GDMIC), aiming to address the many shortcomings of traditional IGCT gate driver units composed of discrete components, such as the excessive number of components, low reliability, and complex development processes.
Shiping Chen   +6 more
wiley   +1 more source

Development of medium voltage single‐phase solid‐state transformer for high‐speed railway vehicles: Reduced scale verification results

open access: yesHigh Voltage, Volume 10, Issue 3, Page 555-569, June 2025.
Abstract This paper presents a high‐power‐density solid‐state transformer (SST) designed for 25 kV alternative current railway applications, delivering a 3 kV direct current output to traction inverters. The SST is composed of sub‐modules with the adoption of 1.7 kV insulated gate bipolar transistor and SiC metal oxide field effect transistor (MOSFET ...
Dong‐Uk Kim   +3 more
wiley   +1 more source

Study of switching transients in high frequency converters [PDF]

open access: yes
As the semiconductor technologies progress rapidly, the power densities and switching frequencies of many power devices are improved. With the existing technology, high frequency power systems become possible. Use of such a system is advantageous in many
Elbuluk, Malik E.   +2 more
core   +1 more source

Simulated climate change impacts health, growth, photosynthesis, and reproduction of high‐elevation epiphytic lichens

open access: yesEcosphere, Volume 16, Issue 4, April 2025.
Abstract Epiphytic lichens are especially threatened by accelerated climatic change at high elevations. All lichens are sensitive to atmospheric conditions. Treelines constrain epiphyte ability to migrate upward to follow suitable conditions. Thus, acclimation to changing conditions will likely determine their survival.
Fiona Ruth Worthy   +8 more
wiley   +1 more source

Analysis of transistor and snubber turn-off dynamics in high-frequency high-voltage high-power converters [PDF]

open access: yes
Dc to dc converters which operate reliably and efficiently at switching frequencies high enough to effect substantial reductions in the size and weight of converter energy storage elements are studied. A two winding current or voltage stepup (buck boost)
Owen, H. A., Jr.   +2 more
core   +1 more source

Slurring silences

open access: yesPhilosophy and Phenomenological Research, Volume 110, Issue 2, Page 497-525, March 2025.
Abstract Silence can be a communicative act. Tanesini (2018) demonstrates how “eloquent” silences can virtuously indicate resistance and dissent; in this paper, I outline one way silence can also be used viciously to cause discursive harm, specifically by slurring victims. By distinguishing between eloquent and “signaling” silences (two kinds of what I
A. G. Holdier
wiley   +1 more source

Design and hardware verification of photovoltaic converter based on adaptive P&O with snubber and BJT circuits

open access: yesAIP Advances
The efficient utilization of renewable energy is a key technology area of high domestic and international concern, and the research and development of DC–DC photovoltaic converters with high conversion efficiency is of great significance for improving ...
Yiming Zhong, Shizhou Xu, Jingying Yao
doaj   +1 more source

Single-Switch Soft-Switched High Voltage Gain Converter With Low Voltage Stress and Continuous Input Current

open access: yesIEEE Open Journal of Power Electronics
This paper introduces a soft-switched high step-up converter applicable to photovoltaic systems. In the proposed topology, to further improve the voltage gain and reduce the components voltage stress, coupled inductors and voltage multiplier cell (VMC ...
Mohammad Reza Gholami   +4 more
doaj   +1 more source

Suppression of Switching Crosstalk and Voltage Oscillations in a SiC MOSFET Based Half-Bridge Converter

open access: yesEnergies, 2018
The silicon carbide (SiC) MOSFET is characterized by high operating voltage, temperature, switching frequency and efficiency which enables a converter to achieve high power density.
Haider Zaman   +4 more
doaj   +1 more source

Characterization and snubbing of a bidirectional MCT in a resonant ac link converter [PDF]

open access: yes
The MOS-Controlled Thyristor (MCT) is emerging as a powerful switch that combines the better characteristics of existing power devices. A study of switching stresses on an MCT switch under zero voltage resonant switching is presented.
Elbuluk, Malik E.   +2 more
core   +1 more source

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