Results 21 to 30 of about 1,240,387 (295)

Quantum Phase Slips in one-dimensional Josephson Junction Chains [PDF]

open access: yes, 2013
We have studied quantum phase-slip (QPS) phenomena in long one-dimensional Josephson junction series arrays with tunable Josephson coupling. These chains were fabricated with as many as 2888 junctions, where one sample had a tunable weak link in the ...
Azizoğlu, Yağız   +5 more
core   +5 more sources

A Model of the On-State Voltage across IGBT Modules Based on Physical Structure and Conduction Mechanisms

open access: yesEnergies, 2019
The on-state voltage is an important electrical parameter of insulated gate bipolar transistor (IGBT) modules. Due to limits in instrumentation and methods, it is difficult to ensure accurate measurements of the on-state voltage in practical working ...
Qingyi Kong   +4 more
doaj   +1 more source

Simulation Study on Dynamic and Static Characteristics of Novel SiC Gate-Controlled Bipolar-Field-Effect Composite Transistor

open access: yesIEEE Journal of the Electron Devices Society, 2020
In this article, a novel bipolar-field-effect composite power transistor, called SiC GCBT (Silicon Carbide Gate-Controlled Bipolar-field-effect Composite Transistor) is presented and studied.
Yipan Zhang, Baoxing Duan, Yintang Yang
doaj   +1 more source

On-State Voltage Measurement of Fast Switching Power Semiconductors

open access: yesCPSS Transactions on Power Electronics and Applications, 2018
The on-state resistance R ds,on is a key characteristic of unipolar power semiconductors and its value depends on the operating conditions, e.g. junction temperature, conducted current and applied gate voltage. Hence, the exact determination of the R ds,on value cannot rely on datasheet information and requires the measurement of current and on ...
Mattia Guacci   +2 more
openaire   +1 more source

Battery voltage and state of power prediction based on an improved novel polarization voltage model

open access: yesEnergy Reports, 2020
A reliable and accurate battery model is the basis of accurate prediction of battery voltage and state of power (SOP). Based on the electrochemical model of a battery, an improved novel polarization voltage (NPV) model based on current and time is ...
Peng Lin   +3 more
doaj   +1 more source

Tuning the onset voltage of resonant tunneling through InAs quantum dots by growth parameters [PDF]

open access: yes, 2002
We investigated the size dependence of the ground state energy in self-assembled InAs quantum dots embedded in resonant tunneling diodes. Individual current steps observed in the current-voltage characteristics are attributed to resonant single-electron ...
Hapke-Wurst, I.   +5 more
core   +4 more sources

A Novel Decomposition for Control of DC Circuits and Grid Models with Heterogeneous Energy Sources [PDF]

open access: yes, 2017
The way in which electric power depends on the topology of circuits with mixed voltage and current sources is examined. The power flowing in any steady-state DC circuit is shown to depend on a minimal set of key variables called fundamental node voltages
barrows   +4 more
core   +3 more sources

Voltage regulation considerations for the design of hybrid distribution transformers [PDF]

open access: yes, 2014
The future substation depends on finding a way to mitigate the effects of the drawbacks of the conventional legacy by employing the efficiency of the solid state switches [1].
Alqarni, M, Darwish, M, Radi, MA
core   +1 more source

Noise in (double) relaxation oscillation SQUIDs [PDF]

open access: yes, 1994
We have modelled the effect of two intrinsic noise sources on the flux noise spectral density of (Double) Relaxation Oscillation SQUIDs ((D)ROSs) based on hysteretic Josephson tunnel junctions.
Adelerhof, Derk Jan   +2 more
core   +3 more sources

Voltage relaxation curve‐based state of charge estimation method with reduced measurement time

open access: yesElectronics Letters, 2023
This paper proposes a method for estimating a battery's State of Charge using voltage relaxation curves. This method offers advantages over the conventional State of Charge estimation methods by reducing the measurement time of the Open Circuit Voltage ...
Suhyeon Lee, Dongho Lee
doaj   +1 more source

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