Results 21 to 30 of about 21,813 (299)

A Simple Equation for the Energy Stored by Voltage-Dependent Capacitances

open access: yes, 2020
The parasitic capacitances of semiconductor power devices that contribute to the switching losses are voltage-dependent, which can make calculations of their stored energy difficult.
Faisal Mohd-Yasin   +13 more
core   +1 more source

Tunable Lowpass Filter with RF MEMS Capacitance and Transmission Line

open access: yesActive and Passive Electronic Components, 2012
We have presented an RF MEMS tuneable lowpass filter. Both distributed transmission lines and RF MEMS capacitances were used to replace the lumped elements.
Shimul C. Saha   +4 more
doaj   +1 more source

CoWO4 Nanoparticles Prepared in Different Solvents and Their Pseudocapacitant Performances

open access: yesInternational Journal of Electrochemical Science, 2017
Cobalt tungstates (CoWO4) nanoparticles have been successfully fabricated through a facile hydrothermal route by employing different solvents. The structure, morphology, surface area and pore distribution of the as-prepared products were characterized ...
Aiping Li   +6 more
doaj   +1 more source

Estimation of stray coupling capacitances in biopotential measurements [PDF]

open access: yes, 2022
Biopotential measurements are very sensitive to electromagnetic interference (EMI) from power-lines. Interference conditions are mainly imposed by electric-field coupling, whose effects can be described by coupling capacitances.
Haberman, Marcelo Alejandro   +2 more
core  

Analysis of effects of MOSFET parasitic capacitance on non-synchronous buck converter electromagnetic emission

open access: yesAin Shams Engineering Journal, 2023
This paper aims to extract the correlation between parasitic capacitances of the Metal Oxide Semiconductor Field Effect Transistor (MOSFET) and its influence in Electromagnetic (EM) Emission level of non-synchronous buck converter.
P. Rajeswari, V. Manikandan
doaj   +1 more source

Influence of Parasitic Capacitance on Output Voltage for Series-Connected Thin-Film Piezoelectric Devices

open access: yesSensors, 2012
Series-connected thin film piezoelectric elements can generate large output voltages. The output voltage ideally is proportional to the number of connections.
Kensuke Kanda   +4 more
doaj   +1 more source

Efficiency modeling for MHz DCDC converters at 40 V input voltage range [PDF]

open access: yesAdvances in Radio Science, 2014
Size and cost of a switched mode power supply can be reduced by increasing the switching frequency. This leads especially at a high input voltage to a decreasing efficiency caused by switching losses. Conventional calculations are not suitable to predict
J. Wittmann, A. Seidel, B. Wicht
doaj   +1 more source

Fixture Design for Parasitic Capacitances of Mosfets for Emi Applications [PDF]

open access: yes, 2022
Due to the fast-switching nature of modern power converters, up to hundreds of MHz of common-mode noise can easily be generated. The characterization of switching components, e.g., Si MOSFETs, is essential for noise reduction.
Zhang, Hanyu   +4 more
core   +1 more source

2.5D Flexible Wind Sensor Using Differential Plate Capacitors

open access: yesSensors, 2021
In this paper, a novel 2.5-dimensional (2.5D) flexible wind sensor is proposed based on four differential plate capacitors. This design consists of a windward pillar, two electrode layers, and a support layer, which are all made of polydimethylsiloxane ...
Yu Wan, Zhenxiang Yi
doaj   +1 more source

Effects of Microstructure on Electrode Properties of Nanosheet-Derived Hx(Ni1/3Co1/3Mn1/3)O2 for Electrochemical Capacitors

open access: yesNanomaterials, 2013
Nanosheet-derived Hx(Ni1/3Co1/3Mn1/3)O2 was prepared by restacking (Ni1/3Co1/3Mn1/3)O2 nanosheets with large or small lateral sizes and their electrochemical properties in a 1 M KOH aqueous solution; microstructural factors were compared with those of ...
Shinya Suzuki   +3 more
doaj   +1 more source

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