Results 21 to 30 of about 5,767 (214)

A novel ZVS full-bridge converter [PDF]

, 2016
Conventional soft switching techniques are promising for improvement of efficiency in full bridge converters. However, efficiency of converters with employing such techniques is restricted due to narrow range of zero voltage switching (ZVS).
Nasir, Jon Cobb, Cobb, Jonathan E.
core   +1 more source

An Improved Charge-Based Method Extended to Estimating Appropriate Dead Time for Zero-Voltage-Switching Analysis in Dual-Active-Bridge Converter

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

Dresden Faculty selection procedure for medical students: what impact does it have, what is the outcome? []

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, Dieter, Peter, Graupner, Anke, Klupp, S., Hänsel, Mike   +4 more
doaj   +1 more source

Positive output elementary Luo converter for fixed-frequency ZVS operation [PDF]

, 2017
Luo converter is one amid the developed DC-DC converters offering higher voltage gain. Soft-switching techniques, like zero-voltage switching (ZVS), repress switching losses, and hence the system efficiency and the life of the power semiconductor ...
Bright, S. J. V., H. Anand, Ramkumar, S., S. Ramkumar, S. J. V. Bright, Anand, H.   +5 more
core   +1 more source

Soft-switching SiC power electronic conversion for distributed energy resources and storage applications

Journal of Modern Power Systems and Clean Energy, 2019
Power electronic conversion plays an important role in flexible AC or DC transmission and distribution systems, integration of renewable energy resources, and energy storage systems to enhance efficiency, controllability, stability, and reliability of ...
Keyan Shi, Jinyi Deng, An Zhao, Dehong Xu   +3 more
doaj   +1 more source

Load‐independent inverse class‐E ZVS inverter and its application to wireless power transfer systems

IET Power Electronics, 2022
This paper proposes a load‐independent inverse class‐E zero‐voltage switching (ZVS) inverter. The proposed inverter achieves the constant output current and the ZVS at any load resistance without any control.
Ayano Komanaka, Wenqi Zhu, Xiuqin Wei, Kien Nguyen, Hiroo Sekiya   +4 more
doaj   +1 more source

Modeling and Control of Inverter Zero-Voltage-Switching for Inductive Power Transfer System

IEEE Access, 2019
It's very important to maintain the inverter zero-voltage-switching(ZVS) for inductive power transfer (IPT) system, especially for those high power applications. The ZVS condition can be obtained via regulating the inverter operating frequency of the IPT
Jiangtao Liu, Qijun Deng, Wenbin Wang, Zhifan Li   +3 more
doaj   +1 more source

Adaptive CLC-S tuned DWPT system with overlapping coil magnetic coupler for output power fluctuation mitigation

Wireless Power Transfer
In dynamic wireless power transfer (DWPT) systems employing transmitting (Tx) coil arrays, output power fluctuations aggravate battery charging current ripples and compromise system stability.
Weihan Li, Yunhan Han, Junjun Deng, Wenbo Wang   +3 more
doaj   +1 more source

Analysis on boundary conditions of soft switching for DC electric spring with parallel topology

IET Power Electronics, 2021
The concept of DC electric spring (DCES) has been introduced some years ago to solve the voltage stabilisation issue caused by the high penetration of intermittent renewable energy sources (RESs) into DC power systems.
Qingsong Wang, Daojun Zha, Ming Cheng, Fujin Deng, Giuseppe Buja   +4 more
doaj   +1 more source

A General Pulse Width Modulation Method for Zero-Voltage-Switching Active-clamping Three-phase Power Converters: Edge Aligned Pulse Width Modulation (EA-PWM)

IEEE Open Journal of Power Electronics, 2020
A general PWM method for soft-switching three-phase power converters-Edge Aligned PWM (EA-PWM) is proposed. It aligns all the high loss commutation instants of the converter bridges in a switching cycle at the same instant so that all the switches of the
Keyan Shi, Jinyi Deng, Dehong Xu
doaj   +1 more source