Results 11 to 20 of about 153,739 (252)

Degradation and recovery features of irradiated GAP LEDs [PDF]

open access: yesЯдерна фізика та енергетика, 2022
The homo-transitional original and irradiated by electrons with E = 2 MeV; F = 5.9⋅1014 cm-2 ÷ 8.2⋅1016 cm-2 GaP LEDs were studied. The effect of radiation treatment on their electrical and optical characteristics was studied; the results of isochronous ...
O. P. Budnyk   +6 more
doaj   +1 more source

A Fast Recovery Vertical Superjunction MOSFET with n-Si and p-3C-SiC Pillars

open access: yesCrystals, 2022
In the traditional SJ MOSFET structure, n/p pillars with the same doping concentrations in the drift region are introduced to decrease the on-resistance.
Rongyu Gao   +6 more
doaj   +1 more source

Failure analysis of high voltage thyristor under impulse during reverse recovery period

open access: yes电力工程技术, 2022
To acquire the characteristic parameters which demonstrate the state of high voltage thyristor for clarifying its failure mechanism, an experiment platform which can not only generate high voltage pulses to thyristor at different moments during reverse ...
YE Mingtian   +4 more
doaj   +1 more source

The Effect of the Pillar Ripple on the Reverse Recovery in Superjunction MOSFETs

open access: yesPower Electronic Devices and Components, 2022
Fast dI/dt and oscillations often are the causes of failure during the reverse-recovery of superjunction MOSFETs. These issues become more prominent with shrinking the pitch size of the superjunction in an attempt to improve the overall performance from ...
H. Kang, N. Donato, F. Udrea
doaj   +1 more source

Analysis of the Operation Mechanism of Superjunction in RC-IGBT and a Novel Snapback-Free Partial Schottky Collector Superjunction RC-IGBT

open access: yesMicromachines, 2023
This paper explores the operation mechanism of the superjunction structure in RC-IGBTs based on carrier distribution and analyzes the advantages and challenges associated with its application in RC-IGBTs for the first time.
Song Yuan   +5 more
doaj   +1 more source

Myocardial Recovery

open access: yesDiagnostics, 2023
In this paper, the feasibility of myocardial recovery is analyzed through a literature review. First, the phenomena of remodeling and reverse remodeling are analyzed, approached through the physics of elastic bodies, and the terms myocardial depression ...
Nikolaos Chrysakis   +6 more
doaj   +1 more source

Analysis of Reverse Recovery Characteristics of Anti-parallel Diode

open access: yesIOP Conference Series: Earth and Environmental Science, 2021
Abstract Insulated gate bipolar transistor (IGBT) is widely used in various renewable green energy systems such as wind power generation and solar power generation at present. High-power IGBT modules usually include IGBT chips and anti-parallel diodes, and the transient characteristics of anti-parallel diodes will affect the external ...
openaire   +1 more source

Evaluation Method for Reverse Recovery Characteristics of Thyristors Based on Charge Measurement

open access: yesJournal of Physics: Conference Series, 2023
Abstract The change of operation mode of the HVDC project causes a change of the external characteristic of the converter valve, and the reverse recovery characteristic of the thyristor inside the converter valve changes accordingly.
Kunpeng Zha   +5 more
openaire   +1 more source

Detection of reverse recovery characteristics of power diodes

open access: yesIET Power Electronics, 2016
A setup was constituted for measuring reverse recovery (RR) waveforms of current I rr and voltage V rr , RR time t rr , RR charges Q
Wensheng Wei   +3 more
openaire   +1 more source

A novel dual switch DC/DC converter without reverse recovery problem

open access: yesEnergy Reports, 2022
The traditional dual switch forward converter has a very large filter element and all the diodes on the primary and secondary sideshow the problem of reverse recovery and voltage oscillation.
Liying Zhou   +3 more
doaj   +1 more source

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