Results 71 to 80 of about 1,874,316 (354)

Monolithic Transformers for High Frequency Bulk CMOS Circuits [PDF]

open access: yes2009 IEEE Topical Meeting on Silicon Monolithic Integrated Circuits in RF Systems, 2009
This paper presents two monolithic transformer structures exhibiting high self resonance frequencies(fSR). Effect of positive and negative coupling factor on self resonance frequency is investigated. The transformer turn ratio and structure is selected to improve design and ease layout of a high frequency LNA and VCO.
Cheema, H.M.   +4 more
openaire   +2 more sources

High Frequency Transformer’s Parasitic Capacitance Minimization for Photovoltaic (PV) High-Frequency Link-Based Medium Voltage (MV) Inverter

open access: yesElectronics, 2018
The high-frequency-based medium voltage (MV) inverter is used in renewable energy power sources for power transmission. However, power quality is compromised as a result of the increase in common mode noise currents by the high inter-winding parasitic ...
Himanshu   +8 more
semanticscholar   +1 more source

Structural biology of ferritin nanocages

open access: yesFEBS Letters, EarlyView.
Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley   +1 more source

Research on lightning stroke model and characteristics of intelligent transformer

open access: yesMATEC Web of Conferences, 2018
In order to improve the reliability of power supply, it is necessary to study the intelligent transformer of the key equipment in the smart substation.
Li Mu   +3 more
doaj   +1 more source

A High Frequency Transformer Isolation Ups System With 110V/220V Input Voltage

open access: yesEletrônica de Potência, 2006
This work proposes an isolated double conversion UPS with power factor correction using a high frequency transformer, and input voltages equal to 110V/220V.
René P. Torrico-Bascopé   +3 more
doaj   +1 more source

Developments for the high frequency power transformer design and implementation [PDF]

open access: yes, 2003
The thesis considers design and manufacturing of ferrite based high frequency power transformers. The primary aim of the work was to study core and winding losses and in particular thermal modeling of high frequency power transformers and to determine ...
Sippola, Mika
core  

First Approach for the Modelling of the Electric Field Surrounding a Piezoelectric Transformer in View of Plasma Generation [PDF]

open access: yes, 2012
This paper is about an open multi-physics modelling problem resulting from recent investigations into plasma generation by piezoelectric transformers.
Lefèvre, Yvan   +2 more
core   +2 more sources

Tau acetylation at K331 has limited impact on tau pathology in vivo

open access: yesFEBS Letters, EarlyView.
We mapped tau post‐translational modifications in humanized MAPT knock‐in mice and in amyloid‐bearing double knock‐in mice. Acetylation within the repeat domain, particularly around K331, showed modest increases under amyloid pathology. To test functional relevance, we generated MAPTK331Q knock‐in mice.
Shoko Hashimoto   +3 more
wiley   +1 more source

Augmented models of High-Frequency Transformers for SMPS [PDF]

open access: yes2009 20th International Zurich Symposium on Electromagnetic Compatibility, 2009
The modeling of high-frequency transformers via augmented equivalent circuits is addressed. The augmented models are composed of a low-frequency equivalent and a supplemental element modeled via real rational fitting. They offer both high accuracy levels and a physical meaning that helps the interpretation of simulation results.
MAIO, Ivano Adolfo   +3 more
openaire   +2 more sources

Calpain small subunit homodimerization is robust and calcium‐independent

open access: yesFEBS Letters, EarlyView.
Calpains dimerize via penta‐EF‐hand (PEF) domains. Using single‐molecule force spectroscopy, we measured the strength and kinetics of PEF–PEF homodimer binding. The interaction is robust, shows a transient conformational step before dissociation, and remains largely insensitive to Ca2+.
Nesha May O. Andoy   +4 more
wiley   +1 more source

Home - About - Disclaimer - Privacy