Results 61 to 70 of about 192,583 (312)

Novel Zero-Voltage-Switching Bridgeless PFC Converter [PDF]

Journal of Power Electronics, 2013
In this paper, a new zero-voltage-switching, high power-factor, bridgeless rectifier is introduced. In this topology, an auxiliary circuit provides soft switching for all of the power semiconductor devices. Thus the switching losses are reduced and the highest efficiency can be achieved.
Rasool Haghi, Mohammad Reza Zolghadri, Reza Beiranvand   +2 more
openaire   +1 more source

A Q‐Learning Algorithm to Solve the Two‐Player Zero‐Sum Game Problem for Nonlinear Systems

International Journal of Adaptive Control and Signal Processing, Volume 39, Issue 3, Page 566-581, March 2025.
A Q‐learning algorithm to solve the two‐player zero‐sum game problem for nonlinear systems. ABSTRACT This paper deals with the two‐player zero‐sum game problem, which is a bounded L2$$ {L}_2 $$‐gain robust control problem. Finding an analytical solution to the complex Hamilton‐Jacobi‐Issacs (HJI) equation is a challenging task.
Afreen Islam, Anthony Siming Chen, Guido Herrmann   +2 more
wiley   +1 more source

Isolated High Step-Up Soft-Switching Quasi-Z-Source DC–DC Converter

IEEE Access
The DC microgrid with energy storage cells has strong stability, simple control, and a convenient power supply for DC loads, increasingly becoming the grid-connected structure of distributed generation systems.
Guosheng Tian, Shuo Chen, Xinping Ding, Jishen Peng, Zhuangzhuang Kou   +4 more
doaj   +1 more source

Zero-voltage transition–zero-current transition pulsewidth modulation DC–DC buck converter with zero-voltage switching–zero-current switching auxiliary circuit

IET Power Electronics, 2012
In this study, a new zero-voltage transition (ZVT)-zero-current transition (ZCT) quasi-resonant buck converter, which ensures zero crossings at any time required for soft switching (SS) and provides ZVT turn-on and ZCT turn-off together for the main switch of active snubber cell in buck converter is presented.
openaire   +2 more sources

A Robust Adaptive One‐Sample‐Ahead Preview Super‐Twisting Sliding Mode Controller

International Journal of Adaptive Control and Signal Processing, EarlyView.
Block Diagram of the Robust Adaptive One‐Sample‐Ahead Preview Super‐Twisting Sliding Mode Controller. ABSTRACT This article introduces a discrete‐time robust adaptive one‐sample‐ahead preview super‐twisting sliding mode controller. A stability analysis of the controller by Lyapunov criteria is developed to demonstrate its robustness in handling both ...
Guilherme Vieira Hollweg, Paulo Jefferson Dias de Oliveira Evald, Shivam Chaturvedi, Hilton Abilio Gründling, Rodrigo Varella Tambara, Wencong Su   +5 more
wiley   +1 more source

An optimized scheme for OLTCs of distribution transformers using flywheel motors

Zhejiang dianli
In the switching process of on-load tap changers （OLTCs） for distribution transformers， electric arcs are likely to occur at the contacts， which have an adverse impact on the service life and normal operation of the equipment.
LI Jiang, GUO Surong, LIU Bo
doaj   +1 more source

A phase‐shift modulated series resonant converter achieving zero‐voltage and zero‐current switching for wide output voltage range battery charging applications

IET Power Electronics, 2022
In this article, a phase‐shift modulated zero‐voltage and zero‐current switching (ZVZCS) series resonant converter (SRC) was proposed for constant current (CC) and constant voltage (CV) charging operating at the series resonant frequency.
Yanke Liang, Xu Liu, Shixuan Lyu
doaj   +1 more source

An Improved Modulation Method for Suppressing High Frequency Common-Mode Voltage in SiC Motor Drive System

World Electric Vehicle Journal, 2021
High-frequency common-mode voltage generated by inverters causes severe negative effects, particularly in silicon carbide (SiC) Metal-Oxide-Semiconductor Field-Effect Transistors (MOSFETs)-driven motors.
Hui Li, Aibo Zhang, Xuewei Xiang
doaj   +1 more source

Detecting Current Noise with a Josephson Junction in the Macroscopic Quantum Tunneling Regime

, 2006
We discuss the use of a hysteretic Josephson junction to detect current fluctuations with frequencies below the plasma frequency of the junction. These adiabatic fluctuations are probed by switching measurements observing the noise-affected average rate ...
A. V. Timofeev, A.J. Leggett, B. Reulet, C.W.J. Beenakker, D. Esteve, D.E. McCumber, G. Schön, J. Ankerhold, J. Bylander, J. Claudon, J. P. Pekola, J. Salo, J. T. Peltonen, J. Tobiska, J.M. Martinis, J.P. Pekola, J.P. Pekola, K.E. Nagaev, K.K. Likharev, L.S. Levitov, L.S. Levitov, M. Duckheim, M. Meschke, R.K. Lindell, S. Gustavsson, T. Ojanen, T.T. Heikkilä, U. Weiss, V. Brosco, W. Lu, W.C. Stewart, Y.M. Blanter, Yu. Bomze   +32 more
core   +1 more source

Impedance control network resonant dc-dc converter for wide-range high-efficiency operation [PDF]

, 2015
This paper introduces a new resonant converter architecture that utilizes multiple inverters and a lossless impedance control network (ICN) to maintain zero voltage switching (ZVS) and near zero current switching (ZCS) across wide operating ranges. Hence,
Afridi, Khurram K., Lu, Jie, Perreault, David J.   +2 more
core   +1 more source