Results 11 to 20 of about 5,431,466 (351)

Design of a 0.5–18 GHz Wideband Frequency Down-Converter Module with a Local Circuit for an Electronic Support Measurement System [PDF]

open access: yesJournal of Electromagnetic Engineering and Science, 2022
In this paper, we describe the design and fabrication of a wideband frequency down converter module that has a local circuit with high gain, low spurious, high IP3 (3rd intercept point) characteristics, and reliability; this is accomplished by applying a
Yuseok Jeon, Byeongchang Kim
doaj   +1 more source

A New Approach Integrated Magnetics Double-Frequency DC/DC Converter

open access: yesIEEE Access, 2020
Double-frequency DC/DC converter can improve switching frequency and reduce switching loss than single-frequency DC/DC converter. However, it is heavy and large due to its small high-frequency inductor and large low-frequency inductor.
Shengwei Gao, Hao Wang
doaj   +1 more source

Analysis of Unidirectional Secondary Resonant Single Active Bridge DC–DC Converter

open access: yesEnergies, 2021
A compact and highly efficient unidirectional DC–DC converter is required as a battery charger for electrical vehicles, which will rapidly become widespread in the near future.
Cao Anh Tuan, Takaharu Takeshita
doaj   +1 more source

Grid Connection Using a Structure That Combines a Buck Converter and a Push-Pull Converter to Reduce the Low-Frequency Current Ripple of the Fuel-Cell

open access: yesIEEE Access, 2022
In a grid-connected power generation system using a fuel cell, the low-frequency ripple component must be maintained within an allowable range to improve the lifespan and efficiency of the fuel cell.
Gyoung-Jong Son   +2 more
doaj   +1 more source

A Closed-Loop Capacitance-to-Frequency Converter for Single-Element and Differential Capacitive Sensors

open access: yesIEEE Transactions on Instrumentation and Measurement, 2020
A novel closed-loop switched-capacitor (SC) capacitance-to-frequency converter (CFC) is presented in this article. The proposed CFC is capable of measuring from either a single-element or a differential capacitive sensor (DCS), providing ratio and ...
L. Areekath, B. George, F. Reverter
semanticscholar   +1 more source

Cooperative Voltage and Frequency Regulation with Wind Farm: A Model-Based Offline Optimal Control Approach

open access: yesEnergies, 2023
Converter blocking is a serious malfunction encountered in high voltage direct current (HVDC) transmission systems. During sending-end converter blocking, the resultant active power and reactive power surplus in the sending-end power system lead to a ...
Hua Li   +5 more
doaj   +1 more source

Full-scale testing of the pump unit with a frequency converter

open access: yesIOP Conference Series: Materials Science and Engineering, 2020
It is generally agreed that when using the frequency converter at pumping stations, the economic effect of its use far exceeds the losses in efficiency, and naturally, no comparison between the alternative methods of regulation is given.
E. Kan   +3 more
semanticscholar   +1 more source

Design of humidity controller of mine-used frequency converter

open access: yesGong-kuang zidonghua, 2013
In view of problem that mine-used frequency converter is easy to be damaged under situation of condensation, a humidity controller of mine-used frequency converter was designed.
WANG Tuan-jie, HU Jian-wei
doaj   +1 more source

The Necessity of Application of Frequency Electric Drives for Irrigation Systems [PDF]

open access: yesE3S Web of Conferences, 2021
The article substantiates the possibility of using frequency drives in agricultural production, shows promising areas of their application, shows the positive qualities of frequency drives, which make it possible to confidently compete with gear drives ...
Kaidar A.B.   +4 more
doaj   +1 more source

Analysis of high-frequency interference characteristics of UHVDC converters

open access: yesThe Journal of Engineering, 2018
The converter is the main component of the converter station and the main noise source of the PLC interference. The accurate modelling of the high-frequency characteristics of the converter is the foundation for the design of the ± 1100 kV UHVDC PLC ...
Chaonan Ying, Zheng Xu, Chenxi Luo
doaj   +1 more source

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