Conferences related to Capacitors

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2020 IEEE 16th International Workshop on Advanced Motion Control (AMC)

AMC2020 is the 16th in a series of biennial international workshops on Advanced Motion Control which aims to bring together researchers from both academia and industry and to promote omnipresent motion control technologies and applications.


2020 IEEE International Conference on Plasma Science (ICOPS)

IEEE International Conference on Plasma Science (ICOPS) is an annual conference coordinated by the Plasma Science and Application Committee (PSAC) of the IEEE Nuclear & Plasma Sciences Society.


2020 IEEE/PES Transmission and Distribution Conference and Exposition (T&D)

Bi-Annual IEEE PES T&D conference. Largest T&D conference in North America.


2019 21st European Conference on Power Electronics and Applications (EPE '19 ECCE Europe)

Energy conversion and conditioning technologies, power electronics, adjustable speed drives and their applications, power electronics for smarter grid, energy efficiency,technologies for sustainable energy systems, converters and power supplies


2019 IEEE 46th Photovoltaic Specialists Conference (PVSC)

Photovoltaic materials, devices, systems and related science and technology


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Periodicals related to Capacitors

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Advanced Packaging, IEEE Transactions on

The IEEE Transactions on Advanced Packaging has its focus on the modeling, design, and analysis of advanced electronic, photonic, sensors, and MEMS packaging.


Antennas and Propagation, IEEE Transactions on

Experimental and theoretical advances in antennas including design and development, and in the propagation of electromagnetic waves including scattering, diffraction and interaction with continuous media; and applications pertinent to antennas and propagation, such as remote sensing, applied optics, and millimeter and submillimeter wave techniques.


Circuits and Systems I: Regular Papers, IEEE Transactions on

Part I will now contain regular papers focusing on all matters related to fundamental theory, applications, analog and digital signal processing. Part II will report on the latest significant results across all of these topic areas.


Circuits and Systems II: Express Briefs, IEEE Transactions on

Part I will now contain regular papers focusing on all matters related to fundamental theory, applications, analog and digital signal processing. Part II will report on the latest significant results across all of these topic areas.


Components and Packaging Technologies, IEEE Transactions on

Component parts, hybrid microelectronics, materials, packaging techniques, and manufacturing technology.


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Xplore Articles related to Capacitors

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Metallised film capacitors for high frequency, high current applications

IEE Colloquium on Capacitors and Inductors for Power Electronics (Digest No: 1996/054), 1996

Some modern applications such as the resonant inverter, use a large number of passive devices. These devices need to operate at very high frequencies and consequently high currents, albeit at moderate voltage levels. This paper aims to outline the design approach to such an application, showing how traditional assembly methods were abandoned in favour of a more radical approach. It ...


Power capacitors-new developments

IEE Colloquium on Capacitors and Inductors for Power Electronics (Digest No: 1996/054), 1996

Capacitors are used in many applications ranging from traction, reactive power compensation through to furnace duties. To varying degrees many applications require capacitors with the highest available energy densities. Two examples include DC filter capacitors for traction applications where weight and volume of the traction convertor is always limited. Secondly high voltage reactive compensation where as demands on the electricity ...


Interpretation of ratings for plastic film capacitors

IEE Colloquium on Capacitors and Inductors for Power Electronics (Digest No: 1996/054), 1996

Plastic film capacitors have always played an important role in power electronic circuits. In the earlier days of thyristors with forced turn-off, large capacitors of tens or even hundreds of microfarads were used for commutation purposes. Much smaller capacitors are used for snubber networks with transistors and other controlled switching devices, and more recently capacitors play an important role in ...


Interpretation of ratings for electrolytic capacitors

IEE Colloquium on Capacitors and Inductors for Power Electronics (Digest No: 1996/054), 1996

Electrolytic capacitors do not arouse much analytical interest and yet they represent a significant proportion of the cost of most power electronic systems. It is therefore of benefit to fully utilise their ratings. Ripple current ratings for electrolytic capacitors are usually provided for operation at 85/spl deg/C ambient. A particular capacitor can be operated at higher currents with lower ambient ...


Performance comparison of MIM capacitors and metal finger capacitors for analog and RF applications

2004 RF and Microwave Conference (IEEE Cat. No.04EX924), 2004

In this work, we compare silicon nitride MIM capacitors to metal finger capacitors and clarify the performance and cost trade-offs. Our measurements show that MIM capacitors are superior to metal finger capacitors in terms of matching and process tolerance, but equivalent metal finger capacitors have higher Q, lower voltage coefficient and lower temperature coefficient.


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Educational Resources on Capacitors

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IEEE-USA E-Books

  • Metallised film capacitors for high frequency, high current applications

    Some modern applications such as the resonant inverter, use a large number of passive devices. These devices need to operate at very high frequencies and consequently high currents, albeit at moderate voltage levels. This paper aims to outline the design approach to such an application, showing how traditional assembly methods were abandoned in favour of a more radical approach. It discusses the use of metallised film capacitors.

  • Power capacitors-new developments

    Capacitors are used in many applications ranging from traction, reactive power compensation through to furnace duties. To varying degrees many applications require capacitors with the highest available energy densities. Two examples include DC filter capacitors for traction applications where weight and volume of the traction convertor is always limited. Secondly high voltage reactive compensation where as demands on the electricity supply network change so the need for portable compensation which is easily relocatable becomes paramount. Solid foil dielectric technology, metallised film and segmented film are the major technology changes seen over the 15 year period. With each change so there has been a step increase in energy levels, primarily associated with increased stressing ofthe dielectric. The critical design parameters remain. For typical filter and resonant circuit applications these include voltage withstand, current carrying capacity, life expectancy, minimal unit inductance and surge discharge capability. Also of prime importance is ensuring the capacitors are adequately protected. As the market becomes ever more competitive so the need to increase capacitive output continues. Possibilities for future developments include changing the basic dielectric material, to increase dielectric constant whilst retaining acceptably low loses and improving the quality of the basic dielectric by either improving manufacturing processes or coating the dielectric film to eliminate pinholes.

  • Interpretation of ratings for plastic film capacitors

    Plastic film capacitors have always played an important role in power electronic circuits. In the earlier days of thyristors with forced turn-off, large capacitors of tens or even hundreds of microfarads were used for commutation purposes. Much smaller capacitors are used for snubber networks with transistors and other controlled switching devices, and more recently capacitors play an important role in resonant-turn off circuits and soft switching. In all cases these capacitors handle large currents and experience high dv/dt on a low duty cycle basis. A small snubber capacitor may handle several hundred amps with a dv/dt of 1000V/us. Due to the low duty cycle the rms current may be quite modest. Nevertheless very high grade capacitors are necessary with a very low loss dielectric. For this reason polypropylene film is generally used. This paper examines the various ratings which must not be exceeded for safe operation and in particular discusses how the effective VAr may be estimated for short duration current pulses in repetitive waveforms and how VAr is related to the power dissipation in a capacitor.

  • Interpretation of ratings for electrolytic capacitors

    Electrolytic capacitors do not arouse much analytical interest and yet they represent a significant proportion of the cost of most power electronic systems. It is therefore of benefit to fully utilise their ratings. Ripple current ratings for electrolytic capacitors are usually provided for operation at 85/spl deg/C ambient. A particular capacitor can be operated at higher currents with lower ambient temperatures. However, manufacturers' data is often insufficient to readily determine appropriate values. This paper seeks to clarify the relationship between ripple current, operating temperature and life and thereby to enable the designer to make an informed choice. In addition the general relationship between voltage ratings, current ratings and capacitance is examined.

  • Performance comparison of MIM capacitors and metal finger capacitors for analog and RF applications

    In this work, we compare silicon nitride MIM capacitors to metal finger capacitors and clarify the performance and cost trade-offs. Our measurements show that MIM capacitors are superior to metal finger capacitors in terms of matching and process tolerance, but equivalent metal finger capacitors have higher Q, lower voltage coefficient and lower temperature coefficient.

  • Power amplifier performances and miniaturization improvement based on Wire Bondable vertical Silicon Capacitors

    This paper presents Wire Bondable vertical Silicon Capacitors (WBSC) performances in high-frequency high-power applications up to 10 GHz and results on capacitance value versus die size. These capacitors combine ultra- deep trench MOS capacitors of few nF and single layer MOS capacitors of few pF in a 0101 single package. The performances of these capacitors have been compared with conventional commercialized vertical capacitors. The benefits of using these capacitors have been quantified thanks to their integration in a power amplifier.

  • Characterization of Ferroelectric Ceramic Capacitors

    The fundamental role of the Q=f(v) function in the characterization of ferroelectric ceramic capacitors is delineated and analyzed. Guidelines for reconstructing the Q=fv data from manufacturers' data are developed and shown to yield additional information on the capacitors. The analytical derivations were backed by simulation and experimental results. Application of the voltage dependent ferroelectric capacitors as a control element for a fixed frequency series resonant converter was tested by simulation. The results suggest that this proposed approach is viable and that the expected performance is comparable to that of a variable frequency series resonant converter.

  • State-of-the-Art Inkjet-Printed Metal-Insulator-Metal (MIM) Capacitors on Silicon Substrate

    Vertically-integrated metal-insulator-metal (MIM) capacitors on silicon are demonstrated for the first time utilizing an entirely additive RF-specific inkjet-printing process. The inkjet-printed MIM capacitors demonstrate a high capacitance per unit area of up to 33 pF/mm<sup>2</sup> by utilizing novel dielectric inks, while achieving quality factors (Q) up to 25 and self- resonant frequencies (SRFs) above 1 GHz. Measurements of dielectric permittivity, leakage current, voltage breakdown, and fabrication repeatability are presented confirming the high-performance operation of the printed MIM capacitors.

  • Evaluation of surface alteration of polypropylene film for power capacitors

    In polypropylene film insulated power capacitors, the surface alteration of the polypropylene film is critical to the electrical performance of the capacitors. Currently, the industry uses space factor to characterize the surface alteration. In this study, the authors investigated the surface alteration of three different polypropylene films used for power capacitors with a Keyence VK9700 3D laser microscope. The three polypropylene films have similar space factor values, similar nominal thickness and film surface alteration requirements. The study finds that the three polypropylene films have many significant differences in the morphology of the surface alteration structure and values of roughness parameters which indicate the limitations of the space factor methodology in fully characterizing surface alteration. The results show that the VK9700 laser microscope can provide much clearer film surface pictures and can provide much more surface alteration information than the ordinary optical microscope.

  • Comparative analysis between the classic power capacitors model used in simulations and the real power capacitors response tested in a controlled laboratory environment

    The aim of this paper is to present a comparative study between the classic power capacitors model implemented in the software dedicated to power quality analysis and the real power capacitors response tested in a controlled laboratory environment. This classic model is composed by a resistance connected in series with a capacitive element and is not sensitive to harmonic distortion. MATLAB - Simulink was used to model the system's components and to simulate the processes. The two regular technologies applied to manufactured power capacitors, well-known as “all-film” capacitor and as metalized polypropylene capacitor, were used for the laboratory tests. The simulation results were analyzed and compared to the laboratory tests data. Results show that the classical model capacitor has excellent accuracy when fed by a sinusoidal waveform. However, when fed by a nonsinusoidal waveform, it has demonstrated limitations that will be reported in this paper.



Standards related to Capacitors

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Guide for Application and Specification of Harmonic Filters

Provide guidelines for the application and specification of passive shunt harmonic fileters for use on 50 and 60 Hz power systems at 216 volts and above.


IEEE Guide for Control of Small Hydroelectric Power Plants


IEEE Standard for Shunt Power Capacitors

This standard applies to capacitors rated 216V or higher, 2.5 kvar or more, and designed for shunt connection to alternating current transmission and distribution systems operating at a nominal frequency of 50 or 60 Hz.


IEEE Standard Requirements for Capacitor Switches for AC Systems (1 kV to 38 kV)

This standard applies to single- or multi-pole ac switches for rated maximum voltage above 1 kV to 38 kV for use in switching shunt capacitor banks (see the note in this clause). This standard covers the application of capacitive load switching wherein the capacitive loads are separated by sufficient inductance to limit the high-frequency transient-making peak current to the peak ...