Results 11 to 20 of about 12,059 (216)
Dresden Faculty selection procedure for medical students: what impact does it have, what is the outcome? [] [PDF]
GMS Zeitschrift für Medizinische Ausbildung, 2010 [english] Since 2004 German universities have been able to use a selection procedure to admit up to 60 percent of new students. In 2005, the Carl Gustav Carus Faculty of Medicine at Dresden introduced a new admission procedure.
Koch, Thea +4 more
doaj +3 more sources
Applied Sciences, 2022 The isolated three-level DC/DC converter (ITLDC) can be used to charge electric vehicles. During the constant current charging stage, the ITLDC can be designed to realize nature zero voltage switching (ZVS).
Shaogui Fan +4 more
doaj +1 more source
Electronics Letters, 2021 This letter proposes a simplified zero‐voltage switching (ZVS) detection circuit and switching loss dynamic optimisation method. The proposed circuit and tuning method can automatically adjust the switching frequency of a synchronous buck converter to ...
Sizhao Lu, Xiaoting Deng, Siqi Li
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Zero-Voltage-Switching Analysis Model of the Triple-Active-Bridge Converter
Energies, 2023 This study aims to analyze the zero-voltage-switching (ZVS) region of a Triple-Active-Bridge (TAB) converter with five degrees of freedom. A TAB converter is an isolated converter derived from a dual-active-bridge (DAB) converter and composed of three ...
Hyung-Jun Byun +3 more
doaj +1 more source
Novel Selection Criteria of Primary Side Transistors for LLC Resonant Converters [PDF]
, 2018 This work has been supported by the Spanish Government under Project MINECO-17-DPI2016-75760-R, Project DPI2014-56358-JIN and grant FPI BES-2014-070785, and by the Principality of Asturias under Project SV-PA-17-RIS3-4 and FEDER ...
Bauwens, Filip +5 more
core +1 more source
Energies, 2019 Photovoltaic (PV) power generation has shown a trend towards large-scale medium- or high-voltage integration in recent years. The development of high-frequency link PV systems is necessary for the further improvement of system efficiency and the ...
Rui Li, Fangyuan Shi, Xu Cai, Haibo Xu
doaj +1 more source
The Class-E/F Family of ZVS Switching Amplifiers [PDF]
, 2003 A new family of switching amplifiers, each member having some of the features of both class E and inverse F, is introduced. These class-E/F amplifiers have class-E features such as incorporation of the transistor parasitic capacitance into the circuit ...
Aoki, Ichiro +3 more
core +1 more source
A Single-Stage LED Driver Based on ZCDS Class-E Current-Driven Rectifier as a PFC for Street-Lighting Applications [PDF]
, 2018 This paper presents a light-emitting diode (LED) driver for street-lighting applications that uses a resonant rectifier as a power-factor corrector (PFC).
Chainarin Ekkaravarodome +5 more
core +2 more sources
Energies, 2022 This paper presents a comprehensive analysis of zero-voltage-switching (ZVS) realization with an improved charge-based method by considering both voltage dependency parasitic capacitance and dead time in dual-active-bridge (DAB) converters, when the ...
Haoyu Zhang, Takanori Isobe
doaj +1 more source
Comprehensive steady state analysis of bidirectional dual active bridge DC/DC converter using triple phase shift control [PDF]
, 2014 Several papers have been published recently on TPS control of dual active bridge (DAB) converter, however, no complete study of the converter operation behaviour exists, that takes into account all switching modes in both charging and discharging ...
Aboushady, A.A. +3 more
core +3 more sources