Results 101 to 110 of about 12,059 (216)

Zodchestvo in Siberia

Проект Байкал
Our annual Festival ZODCHESTVO IN SIBERIA (ZVS), as always, keeps pace with the times: the 24th Festival takes place in the year 2024, and for the third time in Krasnoyarsk.
Елена Григорьева
doaj   +1 more source

Das Missale notatum Rkp. zv. 387

Muzikološki Zbornik, 2020
Auf Grund einer Analyse der paläographischen Seite der Schrift, der Notation, des liturgischen Inhalts des Kalenders, der Rubriken und der Komposition in den Messformularen und der musikwissenschaftlichen Komparation vm musikalischen Repertoire, wollen wir die Frage der Ursprung des Missales Romanum Sign. Rkp. zv.
Rastislav Adamko, Janka Bednáriková, Zuzana Zahradníková, Eva Veselovská, Rastislav Luz   +4 more
openaire   +1 more source

Commutation Processes in Multiresonant ZVS Bridge Converter

Advances in Electrical and Electronic Engineering, 2008
The analysis of the multiresonant ZVS DC/DC bridge converter is presented. The control system of the converter is basedon the method of frequency control at the constant time of transistor turn-off with a phase shift. The operation of the circuit is givenand the operating range of the converter is defined where ZVS switching operation is assured ...
Luft, M., Szychta, E.
openaire   +2 more sources

Research on the Optimal Control Timing of ZVS-QSW

IEEE Access
This article introduces a research method aimed at achieving optimal control timing for the zero-voltage quasi-square wave switch (ZVS-QSW) in a silicon carbide buck converter across a wide range.
Jian Yu, Le Zhou, Renhui Shen, Zhiyuan Shi, Aohui Niu   +4 more
doaj   +1 more source

Zero-Voltage Switching and Natural Voltage Balancing of a 3 kW 1 MHz Input-Series-Output-Parallel GaN LLC Converter

IEEE Open Journal of Power Electronics
Input-Series-Output-Parallel (ISOP) LLC converters have the capability to leverage lower voltage semiconductor devices, thereby enabling applications with higher voltage requirements.
Qingxuan Ma, Qingyun Huang, Alex Q. Huang   +2 more
doaj   +1 more source

Design of a Feedback-Controlled Wireless Converter for Electric Vehicle Wireless Charging Applications [PDF]

, 2019
Electric vehicles (EVs) have played an important role in the modern transporta-tion system in recent years. However, current generations of EVs face unsolved drawbacks such as short driving range, long charging time, and high cost due to expensive ...
Badawy, Mohamed O.
core   +1 more source

A New ZVS Nonisolated Bidirectional DC-DC Converter with Minimal Auxiliary Element [PDF]

Journal of Intelligent Procedures in Electrical Technology, 2013
In this paper, a new nonisolated bidirectional buck–boost dc–dc converter is introduced. The proposed converter can be operated under ZVS condition and fixed switching frequency regardless of the direction of power flow.
Nasrin Asadi Madiseh, Majid Delshad
doaj  

Symmetry and Duality in ZCS and ZVS Quasi-Resonant Buck, Boost, and Buck–Boost DC–DC Converters

Energies
Quasi-resonant (QR) DC–DC converters with PWM control achieve soft switching by shaping the commutation transient through a local resonant process. This paper proposes a symmetry-based unified perspective on classical QR converters by interpreting zero ...
Nikolay Hinov
doaj   +1 more source

Forum ZV [PDF]

Schweizerische Ärztezeitung, 2007
openaire   +1 more source

Adoption Lags, Implementation Gaps, and Economic Growth [PDF]

We introduce a model of endogenous growth in which the returns to innovation are determined by the technology adoption decisions of the users of the new innovative technologies.
Bart Hobijn, Diego Comin
core