Results 41 to 50 of about 611,519 (305)

Low-temperature grown GaAs tunnel junctions

Electronics Letters, 1997
A GaAs tunnel junction is formed by molecular beam epitaxy at low substrate temperatures to incorporate excess arsenic, followed by an anneal to precipitate the excess arsenic. This tunnel junction is comparable in resistance and peak current density to tunnel junctions grown stoichiometrically.
S. Ahmed, M.R. Melloch, D.T. McInturff, J.M. Woodall, E.S. Harmon   +4 more
openaire   +1 more source

Power converter junction temperature measurement using infra‐red sensors [PDF]

The Journal of Engineering, 2019
Studies demonstrate that the power converter has one of the highest failure rates in a wind turbine, with a key failure driver being the power module junction temperature ( T j ).
Smith, C.J., Zappalá, D., Crabtree, C.J., Lapiedra, J., Mulholland, B.   +4 more
openaire   +4 more sources

Heat Dissipation Characteristics of IGBT Module Based on Flow-Solid Coupling

Micromachines, 2022
With the increase of power level and integration in electric vehicle controllers, the heat flux of the key silicon-based IGBT (Insulated Gate Bipolar Transistor) device has reached its physical limit.
Lipeng Tan, Peisheng Liu, Chenhui She, Pengpeng Xu, Lei Yan, Hui Quan   +5 more
doaj   +1 more source

ВИЗНАЧЕННЯ ДОДАТКУ ДО ЗНАЧЕННЯ ТЕПЛОВОГО ОПОРУ СИЛОВИХ НАПІВПРОВІДНИКОВИХ ПРИЛАДІВ

Elektrotehnìka ta Elektroenergetika, 2010
Ця стаття присвячена обгрунтуванню методики визначення додатку до значення теплового опору напівпровідникового приладу для постійного струму, який дає можливість визначити максимальну температуру напівпровідникової структури приладу при навантажені ...
V. S. Ostrenko
doaj   +1 more source

Thermal Analysis and Junction Temperature Estimation under Different Ambient Temperatures Considering Convection Thermal Coupling between Power Devices

Applied Sciences, 2023
The convection thermal coupling between adjacent power devices in power converters is dependent on the ambient temperature. When the ambient temperature changes, the convection thermal coupling also changes.
Kaixin Wei, Peiji Shi, Pili Bao, Xianping Gao, Yang Du, Yanzhou Qin   +5 more
doaj   +1 more source

Nonequilibrium Andreev bound states population in short superconducting junctions coupled to a resonator

, 2017
Inspired by recent experiments, we study a short superconducting junction of length $L\ll \xi$ (coherence length) inserted in a dc-SQUID containing an ancillary Josephson tunnel junction.
Belzig, Wolfgang, Klees, Raffael L., Rastelli, Gianluca   +2 more
core   +1 more source

Investigation of Emissivity and Junction Contacting Status of C-Type Thermocouples Using Rich Hencken Flames

Energies
C-type thermocouples are widely used to measure rich combustions; however, the measured temperature, i.e., the thermocouple junction temperature, is not equal to the gas temperature.
Linqing Zhang, Yingrong Lu, Qinghuang Huang, Peiyong Wang, Juntao Chang   +4 more
doaj   +1 more source

ВИЗНАЧЕННЯ ТЕМПЕРАТУРИ IGBT МОДУЛЯ ПЕРЕТВОРЮВАЧА ЧАСТОТИ ПРИ ПУСКУ АСИНХРОНОГО ДВИГУНА

Elektrotehnìka ta Elektroenergetika, 2013
Запропонована методика виконання розрахунків для визначення типу IGBT модуля, значення температури структур транзисторів та діодів зворотного струму у перетворювачі частоти електропривода змінного струму при пуску двигуна в залежності від статичного ...
V. S. Ostrenko, T. V. Kritska
doaj   +1 more source

Research on IGBT junction temperature model based on united-parameters

Energy Reports, 2020
The insulated gate bipolar transistor (IGBT) is the most expensive central component in the converter interior, but it is also one of the most vulnerable to failure. The failure of power electronic system is mainly due to temperature change.
Lingfeng Shao, Yi Hu, Guoqing Xu, Ph.D., Xinian Wang   +3 more
doaj   +1 more source

Emission and Absorption quantum noise measurement with an on-chip resonant circuit

, 2010
Using a quantum detector, a superconductor-insulator-superconductor junction, we probe separately the emission and absorption noise in the quantum regime of a superconducting resonant circuit at equilibrium.
Basset, Julien, Bouchiat, Hélène, Deblock, Richard   +2 more
core   +1 more source