Results 61 to 70 of about 39,958 (213)

Loss Jump During Loss Switch in Solving PDEs with Neural Networks

Communications in Computational Physics
Using neural networks to solve partial differential equations (PDEs) is gaining popularity as an alternative approach in the scientific computing community. Neural networks can integrate different types of information into the loss function. These include observation data, governing equations, and variational forms, etc.
Zhiwei Wang, Lulu Zhang, Zhongwang Zhang, Zhi-Qin John Xu   +3 more
openaire   +2 more sources

Modeling switching losses in MOSFETs half-bridges

, 2012
This paper discusses the modeling of switching losses in MOSFETs half-bridges. The model proposed in the paper provides a trade-off between accuracy and computing simplicity for quick feasibility investigations and comparative evaluations among different
DI CAPUA, Giulia, Nicola Femia, FEMIA, Nicola, Giulia Di Capua   +3 more
core   +1 more source

Parasitic Effects from Cooling of GaN Power Transistors: Impact on Switching Losses and Common-Mode Currents

, 2022
This work quantifies the parasitic effects caused by the thermal interface in fast-switching gallium-nitride inverters. Next to its thermal properties, a thermal interface also adds parasitic capacitance from the inverter's switching-node to the heat ...
Bokmans, Bart, Lemmen, Erik; id_orcid, Vermulst, Bas; id_orcid, Wijnands, Korneel, Lemmen, Erik, Vermulst, Bas, Weiler, Pelle   +6 more
core   +1 more source

System-Level Switching-Frequency Trade-Offs in a High-Fundamental-Frequency MW-Class PMSM Drive

IEEE Access
While high-speed, high-specific-power permanent-magnet synchronous machines (PMSMs) are critical for emerging aerospace and mobility applications, the existing literature does not provide a comprehensive measurement-based analysis of machine– ...
Huseyin Tayyer Canseven, Deepak Upadhyay, Saeid Deliri, Ilya Petrov, Aleksi Mattsson, Frede Blaabjerg, Lassi Aarniovuori, Pasi Peltoniemi, Juha Pyrhonen   +8 more
doaj   +1 more source

Loss comparison of 2 and 3-level inverter topologies

, 2010
This paper investigates semiconductor and DC-link capacitor losses in two two-level and two three-level voltage source inverters. The components of the four inverters are selected to have appropriate voltage and current ratings.
Orfanoudakis, G., Yuratich, M., Abu-Sara, M., Sharkh, S.   +3 more
core  

Reducing switching losses through MOSFET-IGBT combination [PDF]

, 2008
This paper introduces a configuration aimed at switching losses reduction trough a power leg constructed by combining a MOSFET and an IGBT. The combined use of these different switches leads to the turn-on losses reduction trough the use of the faster ...
Van den Bossche, Alex, Valchev, Vencislav, Marinov, Angel   +2 more
core  

Switching losses reduction in current-controlled single-phase inverters

, 2008
This paper introduces an effective technique for reducing semiconductor switching losses, and evenly distributing them, in current-controlled single-phase inverters.
Ugena, D., L. Garcia-Tabares, Lafoz, M., Rodríguez, I., C. Vazquez, Vázquez, C., I. Rodriguez, M. Lafoz, Carrillo, D., E. Rodriguez, S. Sanz, D. Carrillo, F. Toral, D. Ugena, Toral, F., Sanz, S., García-Tabarés, L., Rodríguez, E.   +17 more
core   +1 more source

Multi-Phase Stator Current Tracking with Gradual Penalization of Commutations

Applied Sciences
Energy efficiency in drives is an important issue. In converter-supplied variable-speed drives, switching losses can amount to a significant portion of all losses.
Manuel R. Arahal, Manuel G. Satué, Juana M. Martínez-Heredia   +2 more
doaj   +1 more source

Measurement of Power Dissipation Due to Parasitic Capacitances of Power MOSFETs

IEEE Access, 2020
Analysis of the switching losses in a power MOSFET is crucial for the design of efficient power electronic systems. Currently, the state-of-the-art technique is based on measured drain current and drain-to-source voltage during the switching intervals ...
Utkarsh Jadli, Faisal Mohd-Yasin, Hamid Amini Moghadam, Peyush Pande, Jordan R. Nicholls, Sima Dimitrijev   +5 more
doaj   +1 more source

Investigation of switching losses for sinusoidal PWM zero current switching inverter and resonant link inverter

, 2009
In this study, simulations of two methods used for minimizing the switching losses occur in DC/AC inverters with PWM that is used extensively because of its high power density, fast response and control facility were carried out.
BEKİROĞLU, ERDAL, Erdal Bekiroglu, ÖZTÜRK, NİHAT, Nihat Ozturk, BAL, GÜNGÖR, Gungor Bal   +5 more
core   +1 more source