Results 31 to 40 of about 8,350 (258)

Unified Fast-Dynamic Direct-Current Control Scheme for Intermediary Inductive AC-Link Isolated DC-DC Converters

open access: yesIEEE Open Journal of Power Electronics, 2021
The isolated dc-dc converters with middle inductive AC links dc-dc converter have been extensively studied in modern energy conversion applications for safety and reliability, especially those featuring intermediary inductive ac-link (I2ACL ...
Nie Hou   +4 more
doaj   +1 more source

A multiport isolated DC-DC converter [PDF]

open access: yes2016 IEEE Applied Power Electronics Conference and Exposition (APEC), 2016
This paper presents a multi-port isolated DC-DC converter for DC applications. A three-port structure is presented, characterized with full bidirectional power flow and simple control. Galvanic isolation is achieved by means of a multi-winding medium frequency transformer which is a part of a resonant LLC converter.
Tran Yan-Kim, Dujic Drazen
openaire   +2 more sources

Transient Modeling Method for Faulty DC Microgrid Considering Control Effect of DC/AC and DC/DC Converters

open access: yesIEEE Access, 2020
The accurate transient modeling of faulty DC microgrids is the basis of fault detection, fault location and fault isolation. AC/DC and DC/DC converters keeps their normal control strategies until the fault is detected.
Liang Kong, Heng Nian
doaj   +1 more source

Overview of Isolated Bidirectional DC–DC Converter Topology and Switching Strategies for Electric Vehicle Applications

open access: yesEnergies
Isolated bidirectional DC–DC converters are becoming increasingly important in various applications, particularly in the electric vehicle sector, due to their ability to achieve bidirectional power flow and their safety features.
Zhenkun Wang   +3 more
doaj   +1 more source

A Single-Phase Embedded Z-Source DC-AC Inverter

open access: yesThe Scientific World Journal, 2014
In the conventional DC-AC inverter consisting of two DC-DC converters with unipolar output capacitors, the output capacitor voltages of the DC-DC converters must be higher than the DC input voltage. To overcome this weakness, this paper proposes a single-
Se-Jin Kim, Young-Cheol Lim
doaj   +1 more source

A multilevel modular DC–DC converter topology [PDF]

open access: yesMathematics and Computers in Simulation, 2017
A multilevel modular DC-DC power conversion topology based on cascaded H-Bridge converters in a double П configuration is presented. The topology is intended to interconnect large power DC networks. A two level control hierarchy is used to regulate the DC voltage of each H-bridge module.
Ricardo Vidal   +7 more
openaire   +7 more sources

Network divergence analysis identifies adaptive gene modules and two orthogonal vulnerability axes in pancreatic cancer

open access: yesMolecular Oncology, EarlyView.
Tumors contain diverse cellular states whose behavior is shaped by context‐dependent gene coordination. By comparing gene–gene relationships across biological contexts, we identify adaptive transcriptional modules that reorganize into distinct vulnerability axes.
Brian Nelson   +9 more
wiley   +1 more source

Average Modeling of High Frequency AC Link Three-Port DC/DC/DC Converters

open access: yesElectricity
The current transition towards renewable energies has led to an increased utilization of Photovoltaic (PV) sources and battery energy storage systems to complement the PV panels.
Eduardo Vasquez Mayen   +1 more
doaj   +1 more source

Current-Limiting DC/DC Power Converters [PDF]

open access: yesIEEE Transactions on Control Systems Technology, 2019
A new nonlinear control framework that guarantees the desired regulation (voltage, current, or power) with an inherent current-limiting capability for different types of dc/dc power converters is presented in this brief. This framework is based on the idea of applying a virtual resistance in series with the inductor of the converter, which changes ...
George C. Konstantopoulos   +1 more
openaire   +2 more sources

IMPDH inhibition enhances cytarabine efficacy in SAMHD1‐expressing leukaemia cells via guanine nucleotide depletion

open access: yesMolecular Oncology, EarlyView.
Cytarabine is a key therapy for acute myeloid leukaemia (AML), but its efficacy is limited by the dNTPase SAMHD1, which hydrolyses its active metabolite. Screening nucleotide biosynthesis inhibitors revealed that IMPDH inhibitors selectively sensitise SAMHD1‐proficient AML cells to cytarabine.
Miriam Yagüe‐Capilla   +9 more
wiley   +1 more source

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