Results 31 to 40 of about 14,421,942 (313)

Research on the black start of DC transformers based on soft converter control

Zhejiang dianli, 2023
The DC transformers with dual active bridge （DAB） topology is characterized by zero voltage switching （ZVS） and provides the basis for realizing lossless turn-off buffer by directly paralleling buffer capacitors.
TANG Xueteng, MA Yiqing, SHI Xinghua, QIU Peng, HUANG Xiaoming, ZHAO Biao   +5 more
doaj   +1 more source

Dynamic Shift Coordinated Control Based on Motor Active Speed Synchronization with the New Hybrid System

Shock and Vibration, 2017
Considering the inherent disadvantages that severely affect driving comfortability during the shift process in HEVs, a dynamic shift coordinated control based on motor active speed synchronization is proposed to improve shift quality by reduction of ...
Ting Yan, Lin Yang, Bin Yan, Wei Zhou, Liang Chen, Wei Zhou   +5 more
doaj   +1 more source

The Regulation Characteristics of Bridge Modular Switched-Capacitor Ac-Ac Converter

IEEE Access, 2019
The switched-capacitor (SC) converter has become a hot candidate to replace power electronics transformer (PET) in commercial and residential applications, especially in micro-grids. However, its poor regulation blocks it wide application.
Liangzong He, Tao Zeng, Jianhuan Zhang
doaj   +1 more source

Optimal Strategy of Triple Phase Shift Transient DC Bias for Dual Active Bridge DC-DC Converter [PDF]

E3S Web of Conferences, 2020
Under the traditional phase shift control, dual active bridge DC-DC converter (DAB) has a transient bias on the inductance current when the phase shift ratio changes suddenly, which leads to increase in the current stress of switch tubes and even ...
Zhai Jingyu, Wang Fusheng, Ye Lizhong, Li Rui   +3 more
doaj   +1 more source

Atoms in intense ultrashort laser pulses and the absolute phase [PDF]

, 2004
Diese Arbeit beschäftigt sich mit der experimentellen Analyse atomarer Prozesse in intensiven ultrakurzen Laserpulsen. Der Schwerpunkt liegt hierbei bei den Zwillingseffekten der Erzeugung hoher Harmonischer (``high-order harmonic generation'', HHG) und ...
Lindner, Fabrizio
core   +1 more source

Closed-Loop Control of Symmetric Switching Sequences for Piezoelectric-Resonator-Based DC-DC Converters

IEEE Open Journal of Power Electronics
Piezoelectric Resonators (PRs) are promising alternative passive components for power conversion, offering high power density, high efficiency, and the opportunity to replace bulky inductors.
Mustapha Touhami, Jessica D. Boles
doaj   +1 more source

The planar cell polarity protein Vangl2 interacts with the PDZ‐domains of Scribble but not with a unique PDZ‐like domain in Inturned

FEBS Letters, EarlyView.
Structural and biochemical characterisations show that the planar cell polarity (PCP) protein Inturned harbours a unique PDZ‐like domain that does not bind canonical PDZ‐binding motifs (PBMs) like that of another PCP protein Vangl2. In contrast, the apical‐basal polarity protein Scribble contains four PDZ domains that bind Vangl2, but one PDZ domain ...
Stephan Wilmes, Jan Brysch, Carmen Gelze, Lilli Meier, Daniel Kümmel   +4 more
wiley   +1 more source

The fundamental phase shift compensation scheme in a digital-controlled VIENNA rectifier with variable carrier-fundamental frequency ratio under unbalanced grid conditions

Energy Reports, 2022
In the DC power distribution systems, One-cycle control (OCC) based three-phase VIENNA rectifiers achieves high power factor (PF) easily. However, under unbalanced grid conditions, the fundamental phase shift between the input current and corresponding ...
Jianguo Lyu, Zhaocheng Shi, Fuyun Wu, Linyong Fan, Zhuang Sun, Wenbin Hu   +5 more
doaj   +1 more source

Calpain small subunit homodimerization is robust and calcium‐independent

FEBS Letters, EarlyView.
Calpains dimerize via penta‐EF‐hand (PEF) domains. Using single‐molecule force spectroscopy, we measured the strength and kinetics of PEF–PEF homodimer binding. The interaction is robust, shows a transient conformational step before dissociation, and remains largely insensitive to Ca2+.
Nesha May O. Andoy, Trina Dykstra‐MacPherson, Mathias A. Bell, Peter L. Davies, Ruby May A. Sullan   +4 more
wiley   +1 more source

Efficiency Improvement and High-Performance Control of Dual-Active-Bridge DC-DC Converter with Triple-Phase-Shift Modulation

CSEE Journal of Power and Energy Systems
This paper analyzes the optimal switching modes of the dual-active-bridge (DAB) DC-DC converter to minimize losses in DC-DC converters that exhibit a wide voltage range, high efficiency, and high performance.
Qiang Ren, Fei Xiao, Jilong Liu, Peng Chen, Zhichao Zhu   +4 more
doaj   +1 more source