Results 41 to 50 of about 66,884 (302)

Improved Interleaved DC-DC Converter Without Auxiliary Switches: Analysis and Experimental Validation

open access: yesElectrica
This paper presents a new two-phase interleaved boost converter for photovoltaic applications. An interleaved boost converter improved with an additional resonant circuit is proposed.
Veera Venkata Subrahmanya Kumar Bhajana   +3 more
doaj   +1 more source

Zczvt Inverters With Magnetically Coupled Auxiliary Pole

open access: yesEletrônica de Potência, 2010
Existing Zero-Current Transition and Zero- Current Zero-Voltage Transition inverters provides favorable switching conditions for IGBT semiconductors increasing significantly the reactive energy of the converter.
Mário Lúcio da Silva Martins   +4 more
doaj   +1 more source

Multiple Sclerosis Relapse Activity After Ozanimod Discontinuation in DAYBREAK Trial Participants

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
Multiple Sclerosis Relapse Activity After Ozanimod Discontinuation in DAYBREAK Trial Participants. ABSTRACT Objective Return of disease activity is expected when patients discontinue disease‐modifying therapy (DMT) for multiple sclerosis (MS). Some MS DMTs are associated with higher‐than‐expected disease activity (rebound) after discontinuation.
Ralf Gold   +12 more
wiley   +1 more source

Design of a Bidirectional CL3C Full-Bridge Resonant Converter for Battery Energy Storage Systems

open access: yesEnergies, 2022
In this study, a bidirectional CL3C full-bridge resonant converter was developed using a bidirectional active bridge converter as the main framework to improve conventional LLC resonant converters.
Yih-Her Yan   +2 more
doaj   +1 more source

Zero current switching rezonant switch converters [PDF]

open access: yes, 1997
Bu tezin, veri tabanı üzerinden yayınlanma izni bulunmamaktadır. Yayınlanma izni olmayan tezlerin basılı kopyalarına Üniversite kütüphaneniz aracılığıyla (TÜBESS üzerinden) erişebilirsiniz.Fen Bilimleri Enstitüsü, Elektrik-Elektronik Ana Bilim DalıIll ...
Yücel, İbrahim
core  

Upper Cervical Cord Area as a Biomarker of Conversion to Secondary Progressive Multiple Sclerosis

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective This study assessed whether upper cervical cord area (UCCA) measured on routine brain MRI can serve as a biomarker of conversion to SPMS. Methods This is a single‐center retrospective cohort study of RRMS patients with cross‐sectional and longitudinal analyses of clinical and MRI data. Future SPMS converters were matched by age, sex,
Nabil K. El Ayoubi   +8 more
wiley   +1 more source

Optimized switching control strategy for current-fed half-bridge converter

open access: yes, 2014
A switching control strategy is proposed for current-fed half-bridge converters. An active switch based voltage doubler circuit at the secondary side of the isolation transformer is used to obtain zero-current-switching at turn-off and zero-voltage ...
Nayanasiri, D.R.   +5 more
core   +1 more source

High-performance Cuk converter with turn-on switching at zero voltage and zero current

open access: yes, 2023
The soft-switching technique has the potential to significantly enhance the performance of the power converter. This is primarily because it allows for an increase in the switching frequency, which ultimately leads to improved modulation quality.
Kadhem, Basim Talib   +5 more
core   +1 more source

A Return to Normality: A Descriptive Qualitative Interview Study Exploring the Patient Experience of Gout Flare Resolution

open access: yesArthritis Care &Research, EarlyView.
Objective Although the definition of a gout flare is well established, the state of gout flare resolution has not yet been defined. This study aimed to explore patients’ experiences and perceptions of gout flare resolution. Methods Semistructured interviews were conducted with 24 people with gout, guided by open‐ended questions exploring their ...
Sarah Stewart   +5 more
wiley   +1 more source

A Soft-Switching Control for Cascaded Buck-Boost Converters Without Zero-Crossing Detection

open access: yesIEEE Access, 2019
This paper proposes a novel soft-switching control without zero-crossing detection for the cascaded buck-boost converters (CBBCs). The proposed soft-switching control consists of two parts: soft-switching modulation and closed-loop control.
Jingrong Yu   +4 more
doaj   +1 more source

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