Results 21 to 30 of about 11,168 (264)

High step-up quasi-Z-source DC–DC converters with single switched capacitor branch

Journal of Modern Power Systems and Clean Energy, 2017
Aiming to integrate the respective merits of the switched-capacitor converter and the quasi-Z-source converter. An novel high step-up quasi-Z-source DC–DC converter with a single switched-capacitor branch is proposed.
Xiaoquan ZHU, Bo ZHANG
doaj   +1 more source

High Voltage Gain Switched-Z-Source Bidirectional DC-DC Converter

IEEE Access, 2022
The DC-DC converters are the essential modules in electric vehicles, grid interface of renewable energy sources and DC power supplies. This paper presents a novel high gain bidirectional switched Z-source DC-DC converter.
Anish Ahmad, Md. Motiur Reza, Abdul R. Beig, Jamal Y. Alsawalhi, Khaled Al Jaafari   +4 more
doaj   +1 more source

THREE-LEVEL INDIRECT MATRIX CONVERTER WITH TWO SERIES Z-SOURCE NETWORKS [PDF]

Carpathian Journal of Electrical Engineering, 2019
In previous articles, the concept of series Z-source network has been extended to conventional indirect matrix converter to raise the voltage gain to unity and beyond.
Francis Boafo EFFAH, Philip OKYERE, Mubarak Sani ELLIS, Patrick WHEELER, Alan WATSON, Jon CLARE, Joseph OJO   +6 more
doaj  

Modified A-Source Converter Operating at Lower Voltage Stress

IEEE Access, 2019
The coupled inductor based Z-source converter produces higher voltage gain with lower number of components count. In this paper, a new two winding mutually coupled inductor based Z-source DC-DC converter is proposed to boost the voltage gain.
Avneet Kumar, Yi Wang, Xuewei Pan, Xiaogang Xiong, Motiur M. Reza, Khaled Al Jaafari   +5 more
doaj   +1 more source

A New Topology of Embedded Z-H Buck-Boost Converter [PDF]

AUT Journal of Electrical Engineering, 2018
In this paper, a new embedded Z-H (EZ-H) buck-boost converter is proposed. In this topology, two identical dc voltage sources are embedded in a LC network in a series connection with the inductors. The proposed converter eliminates the shoot-through (ST)
E. Babaei, H. Feyzi, R. Gholizadeh-Roshanagh   +2 more
doaj   +1 more source

Dual space vector PWM technique for a three-phase to five-phase quasi Z-source direct matrix converter

Automatika, 2022
This article proposes a dual space vector PWM control technique for a three-phase to five-phase quasi Z-source direct matrix converter (QZSDMC). The proposed circuit consists of a quasi-impedance source network along with a five-phase traditional matrix ...
S. Manivannan, N. Saravanakumar, K. N. Vijeyakumar   +2 more
doaj   +1 more source

Leukemia and Exposure to Potential Benzene Sources in Children From the Mexico City Metropolitan Area, 2010–2021: A Geospatial Analysis

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Leukemia is the most common childhood cancer in Mexico, and acute lymphoblastic leukemia (ALL) is the most frequent subtype. Exposure to high concentrations of benzene has been associated with ALL incidence, particularly in urban areas. This study evaluated the relationship between distance to benzene emission sources and the number
Orlando Rivera Zurita, Norma Candelaria López Santiago, Claudia Maria García Cuellar, Karla Maldonado Silva, Nancy Reynoso Noverón, Leticia Hernández Cadena   +5 more
wiley   +1 more source

Z‐source‐based isolated high step‐up converter

IET Power Electronics, 2013
Continuous input currents and high step‐up ratios are desired from the dc–dc converters that work with renewable energy sources such as photovoltaic panels and fuel cells. Most dc–dc converters use transformers to have high step‐up ratios. There is another type of converters that use coupled inductors, but they need to operate at high duty cycles to ...
Evran, Fatih, Aydemir, Mehmet Timur
openaire   +3 more sources

Sociodemographic Factors Associated With Later Stage at Diagnosis of Pediatric Germ Cell Tumors: A Report From Children's Oncology Group Registries ACCRN07 and APEC14B1

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Germ cell tumors (GCTs) often arise in the ovaries and testes (extracranial) but can also develop in the brain (intracranial). We examined the relationship of individual, family, and community‐level socioeconomic status (SES) with stage of disease at diagnosis in a cohort of pediatric patients with GCT from Children's Oncology Group
Heydon K. Kaddas, Judy Y. Ou, Todd Alonzo, Logan G. Spector, Negar Fallahazad, Emily Owens, Anne C. Kirchhoff, Adam L. Green   +7 more
wiley   +1 more source

Voltage and Current Programmed Modes in Control of the Z-Source Converter

2008 IEEE Industry Applications Society Annual Meeting, 2008
The Z-source converter (ZSC) is an alternative power conversion topology that can both buck and boost the input voltage using passive components with improved reliability. Dynamic modeling of the ZSC from different perspectives has been studied. So far, based on these models, the dc-link voltage is controlled using direct measurement, or through ...
Gökhan Sen, Malik Elbuluk
openaire   +2 more sources