Results 31 to 40 of about 616,094 (331)

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

Temperature Dependent Polarity Reversal in Au/Nb:SrTiO3 Schottky Junctions

, 2007
We have observed temperature-dependent reversal of the rectifying polarity in Au/Nb:SrTiO3 Schottky junctions. By simulating current-voltage characteristics we have found that the permittivity of SrTiO3 near the interface exhibits temperature dependence ...
E. Sawaguchi, H. Y. Hwang, S. M. Sze, T. Susaki, Y. Kozuka, Y. Tateyama   +5 more
core   +1 more source

Competition between electronic cooling and Andreev dissipation in a superconducting micro-cooler [PDF]

, 2009
We discuss very low temperature experiments on superconducting micro-coolers made of a double Normal metal - Insulator - Superconductor junction. We investigate with a high resolution the differential conductance of the micro-cooler as well as of ...
A. Bardas, A. Kastalsky, A.F. Andreev, A.F. Volkov, B. Pannetier, B.J. Wees van, C.W. Beenakker, D. Quirion, D. Saint-James, F. Giazotto, F. W. J. Hekking, F.W.J. Hekking, F.W.J. Hekking, G.E. Blonder, H. Courtois, H. Courtois, H. Courtois, H. Pothier, J.P. Pekola, M. Nahum, P. Gandit, S. Rajauria, S. Rajauria, Sukumar Rajauria   +23 more
core   +4 more sources

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

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

Proximity effect in planar Superconductor/Semiconductor junction

, 1999
We have measured the very low temperature (down to 30 mK) subgap resistance of Titanium Nitride (Superconductor, Tc = 4.6 K)/highly doped Silicon (Semiconductor) SIN junction (the insulating layer stands for the Schottky barrier).
Bakker, Blonder, David Quirion, François Lefloch, Henny, Kastalsky, Lefloch, Marc Sanquer, van Wees, Volkov   +9 more
core   +1 more source

Research on Junction Temperature Smooth Control of SiC MOSFET Based on Body Diode Conduction Loss Adjustment

Energies
In a converter of actual working condition, the change in the current and voltage of the power device will cause the junction temperature to fluctuate greatly. This device is subjected to high thermal stress due to the change in the junction temperature.
Junke Wu, Yunpeng Wei, Yuntao Wu, Zhou Wang, Xingyu Li, Xiangnan Wei   +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

High Frequency Quantum Admittance and Noise Measurement with an On-chip Resonant Circuit

, 2012
By coupling a quantum detector, a superconductor-insulator-superconductor junction, to a Josephson junction \textit{via} a resonant circuit we probe the high frequency properties, namely the ac complex admittance and the current fluctuations of the ...
A. Barone, G. L. Ingold, H. Bouchiat, J. Basset, M. Tinkham, R. Deblock, R. J. Schoelkopf, Y. Imry   +7 more
core   +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