Results 41 to 50 of about 25,518 (216)

Theoretical analysis and operation optimization of eddy current flaw detector sensor interface

open access: yesMeasurement + Control, 2023
The use of input devices of resonance-type in flaw detectors is advisable at frequencies above 100–200 kHz. However, in the practice of non-destructive testing by eddy currents, it is often necessary to use lower frequencies.
Y Bilik, M Haridim
doaj   +1 more source

Application of chaotic pulse width modulation control for suppressing electromagnetic interference in a half-bridge converter

open access: yesThe Journal of Engineering, 2014
It was proposed in the former research that chaos control can be used to suppress electromagnetic interference (EMI) in DC–DC converters. Analysis on a half-bridge converter is detailed in this study.
Yuhong Song, Junying Niu
doaj   +1 more source

Design and comparative evaluation of converter topologies for six-phase switched reluctance motor drives

open access: yesThe Journal of Engineering, 2019
This paper presents a novel converter topology for six-phase switched reluctance motor (SRM) drives, which reduces the number of switches and diodes by half, compared with the conventional asymmetric half-bridge (AHB) converter, and needs no additional ...
Xu Deng, Barrie Mecrow
doaj   +1 more source

Rectifying memristor bridge circuit realized with human skin [PDF]

open access: yesJournal of Electrical Bioimpedance, 2018
Abstract It has been demonstrated before that human skin can be modeled as a memristor (memory resistor). Here we realize a memristor bridge by applying two voltages of opposite signs at two different skin sites. By this setup it is possible to use human skin as a frequency doubler and half-wave rectifier which is an application of the ...
openaire   +5 more sources

Performance of the battery energy storage systems based on cascaded H-bridge multilevel converter

open access: yesThe Journal of Engineering, 2019
The battery energy storage system (BESS) based on the cascaded multilevel converter, that consists of cascaded H-bridge converter, is one of the most promising and interesting options, which is taken to compensate the instability of electric power grid ...
Abuzaid Saeed Gadalla   +2 more
doaj   +1 more source

Multiple modular DC transformer for flexible HVDC application

open access: yesThe Journal of Engineering, 2019
This study proposes a novel multiple modular dc transformer (MMDCT) scheme for flexible high-voltage dc (HVDC) application. The MMDCT is composed of n consistent modular dual-active-bridge converters (MDABs), and every MDAB can work independently.
Qianhao Sun   +4 more
doaj   +1 more source

Bridge fused multiply-adder circuit

open access: yes, 2011
A bridge fused multiply-adder is disclosed. The fused multiply-adder is for the single instruction execution of (A×B)+C. The bridge fused multiply-add unit adds this functionality to existing floating-point co-processor units by including a fused multiply-add hardware “bridge” between an existing floating-point adder and a floating-point multiplier ...
Carl E. Lemonds, Jr.   +2 more
openaire   +2 more sources

Small power ZVS circuits for the marine-controlled source electromagnetic transmitter

open access: yesThe Journal of Engineering, 2019
Marine-controlled source electromagnetic transmitter is an important equipment for the investigation of marine geology and exploration of oil, gas, and mineral resources in recent years.
Hongxi Song   +3 more
doaj   +1 more source

Electromagnetic Performance Analysis of Variable Flux Memory Machines with Series-magnetic-circuit and Different Rotor Topologies

open access: yesCES Transactions on Electrical Machines and Systems
In this paper, the electromagnetic performance of variable flux memory (VFM) machines with series-magnetic-circuit is investigated and compared for different rotor topologies.
Qiang Wei   +6 more
doaj   +1 more source

Triple buck converter – an efficient low-distortion switch-mode power amplifier topology

open access: yesThe Journal of Engineering, 2019
A switch-mode power amplifier topology that can achieve both a high conversion efficiency and low-output signal distortion is introduced. Such systems are desirable for ultra-high precision amplifiers that, for example, drive actuators in nanometre ...
Mario Mauerer   +2 more
doaj   +1 more source

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