Results 11 to 20 of about 2,737 (204)

Digital simulation of FM-ZCS-quasi resonant converter fed DD servo drive using Matlab Simulink [PDF]

open access: yesSerbian Journal of Electrical Engineering, 2009
This paper deals with digital simulation of FM-ZCS-quasi resonant converter fed DC servo drive using Matlab Simulink. Quasi Resonant Converter (QRC) is fast replacing conventional PWM converters in high frequency operation.
Kattamuri Narasimha Rao   +1 more
doaj   +2 more sources

A Comprehensive Analysis of Losses and Efficiency in a Buck ZCS Quasi-Resonant DC/DC Converter

open access: yesJournal of Low Power Electronics and Applications
As power electronics continue to advance, the demand for highly efficient and low-loss DC/DC converters has grown significantly. This article comprehensively analyses ZCS quasi-resonant switch cell losses and efficiency in buck L-type zero-current ...
Nikolay Hinov, Tsvetana Grigorova
doaj   +2 more sources

Robust control design for a ZCS converter [PDF]

open access: yesIEEE 2002 28th Annual Conference of the Industrial Electronics Society. IECON 02, 2003
Resonant converters have a highly nonlinear and time-varying nature. Any change in operating conditions leads to significant changes in system dynamical model so that desired performance and even stability are lost. This situation is mainly due to variation in load and line voltage.
H. Bevrani, Y. Mitani, K. Tsuji
openaire   +2 more sources

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

open access: yesEnergies
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   +2 more sources

A Different Characterization of U1(ZCs)

open access: yes, 2012
In this paper, torsion-free part of U1(ZCs) is characterized by using a different description. That is, unlike the previous works, a classical ring and number theory is used in this characterization.
Arı, Kamil, Görgülü, Merve
openaire   +2 more sources

Guiding chili variety selection for Zao chili in Guizhou: Based on a systematic study of sensory, physicochemical, and volatile characteristics [PDF]

open access: yesFood Chemistry: X
This work investigated the influence of seven chili varieties in Guizhou on the quality of Zao Chili (ZC), a local traditional fermented chili product.
Xueya Wang   +7 more
doaj   +2 more sources

A Reduced Complexity Acoustic-Based 3D DoA Estimation with Zero Cyclic Sum [PDF]

open access: yesSensors
Accurate direction of arrival (DoA) estimation is paramount in various fields, from surveillance and security to spatial audio processing. This work introduces an innovative approach that refines the DoA estimation process and demonstrates its ...
Rigel Procópio Fernandes   +2 more
doaj   +2 more sources

Efficient One-Step Synthesis of a Pt-Free Zn0.76Co0.24S Counter Electrode for Dye-Sensitized Solar Cells and Its Versatile Application in Photoelectrochromic Devices

open access: yesNanomaterials, 2023
In this study, we synthesized a ternary transition metal sulfide, Zn0.76Co0.24S (ZCS-CE), using a one-step solvothermal method and explored its potential as a Pt-free counter electrode for dye-sensitized solar cells (DSSCs).
Yerbolat Tashenov   +4 more
doaj   +1 more source

Design and Implementation of an Auto-Oriented Bidirectional ZCS Hybrid Circuit Breaker

open access: yesIEEE Access, 2021
To protect power systems from severe short circuit faults, the zero-current switching (ZCS) technique is widely accepted due to its fast interruption speed.
Zhuangxian Jiang   +5 more
doaj   +1 more source

Temporal Stability of the Zulliger Test in Brazilian Adults [PDF]

open access: yesPaidéia (Ribeirão Preto), 2023
The reliability of a test obtained over time is an indispensable measure to ensure the use of the instrument. This study aims to explore the temporal stability of the Zulliger test in Brazilian adults.
Jucelaine Bier Di Domenico Grazziotin   +2 more
doaj   +1 more source

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