Buscar
Mostrando ítems 1-10 de 264
A physical approach of the test voltage function for evaluation of the impulse parameters in lightning impulse voltages with superimposed oscillations and overshoots
(Institute of Electrical and Electronics Engineers, 2016-10)
The introduction of the test voltage function or k-factor in IEC 60060-1 Ed. 3 has been an important step to ensure reproducibility and traceability in high voltage tests techniques for lightning impulses with superposed ...
On the avalanche multiplication mechanism in SPICE simulations of high-frequency bipolar transistors with thin basewidths and low breakdown voltages
(Elsevier Gmbh, Urban & Fischer VerlagJenaAlemanha, 2005)
Effect of seed addition on SnO2-based varistors for low voltage application
(2013-02-01)
The effect of seed addition on the microstructure and non-ohmic properties of the SnO2 + 1%CoO + 0.05%Nb2O5 ceramic-based system was analyzed. Two classes of seeds were prepared: 99% SnO2 + 1%CuO and 99% SnO2 + 1%CoO (mol%); ...
Effect of seed addition on SnO2-based varistors for low voltage application
(2013-02-01)
The effect of seed addition on the microstructure and non-ohmic properties of the SnO2 + 1%CoO + 0.05%Nb2O5 ceramic-based system was analyzed. Two classes of seeds were prepared: 99% SnO2 + 1%CuO and 99% SnO2 + 1%CoO (mol%); ...
Physical mechanism of progressive breakdown in gate oxides
(American Institute of Physics, 2014-06)
The definition of the basic physical mechanisms of the dielectric breakdown (BD) phenomenon is still an open area of research. In particular, in advanced complementary metal-oxide-semiconductor (CMOS) circuits, the BD of ...
Video lectures - lecture 6 - high-voltage breakdown
(MIT OpenCourseWare – Massachussetts Institute of Technology, 2011)
Video lectures - lecture 6 - high-voltage breakdown
(MIT OpenCourseWare – Massachussetts Institute of Technology, 2016)
Properties of a laser-initiated pseudospark discharge
(1989)
A short-pulse Nd:YAG laser is used to illuminate the back electrode surface in the hollow cathode region of a pseudospark discharge. A fast rising step voltage pulse is applied across the electrodes at various times relative ...
Bilayer graphene on h-BN substrate: investigating the breakdown voltage and tuning the bandgap by electric field
(IOP PUBLISHING LTDBRISTOL, 2012)
By performing density functional theory calculations we show that it is possible to make the electronic bandgap in bilayer graphene supported on hexagonal boron nitride (h-BN) substrates tunable. We also show that, under ...