Design of microfabricated inductors

Daniel, L.; Sullivan, Charles R.; Sanders, S.R.

doi:10.1109/pesc.1996.548772

Cited by 14 publications

(15 citation statements)

References 25 publications

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“…The structure of the lumped circuit is fixed, the inductor is represented as an equivalent distributed inductor model with a variable cell number to better describe the inductor behaviour at high frequencies [18], [19], [1], [5]. The inductor model is built by joining two different types of elementary blocks; the first one, called "L block", has the structure illustrated in Figure 2, the second one, called "P block", has the structure illustrated in Figure 3.…”

Section: A the Inductor Modelmentioning

confidence: 99%

New coupled EM and circuit simulation flow for integrated spiral inductor by introducing symbolic simplified expressions

Ciccazzo

Halfmann

Marotta

et al. 2008

2008 IEEE International Symposium on Industrial Electronics

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Abstract-Micro-electronics component and circuit design requires long computation time; to reduce this time, the use of simplification techniques has been introduced. In order to obtain a first validation of the method, a first test case is presented; the simplification techniques have been applied to the analytical expression of Y parameters of an inductor equivalent circuit. The resulting expressions have been used in the fitting process in order to reproduce the behaviour of a simulated inductor. Five different optimization algorithms, both deterministic (POWELL and DIRECT) and stochastic (CRS, CRS ENHANCED and OPTIA) have been tested for the fitting. The result of the introduction of the simplification techniques has been the reduction of the running time during the fitting. From an optimization point of view, the best results have been obtained by the stochastic algorithms CRS, and OPTIA.

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Section: A the Inductor Modelmentioning

confidence: 99%

New coupled EM and circuit simulation flow for integrated spiral inductor by introducing symbolic simplified expressions

Ciccazzo

Halfmann

Marotta

et al. 2008

2008 IEEE International Symposium on Industrial Electronics

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“…Here we analyze a design based on similar techniques and geometries, but based on the optimal ripple ratio for a single-phase converter chosen above, rather than the arbitrarily chosen ripple ratio used in [6]. We also present refined design calculations, including a Fourier representation of the current waveform, as used in [7], and consideration of more design variables.…”

Section: Inductor Designmentioning

confidence: 99%

“…The design parameters for this "V-trench" inductor are length, width, core thickness, and core properties. We fix a maximum practical thickness for the core material of 10 m [7]. The maximum thickness for core material is a preferred choice for most designs of interest because, with high resistivity, eddy losses are not a major factor.…”

Section: Inductor Designmentioning

confidence: 99%

“…The core eddy-current loss and conductor ac loss calculation is similar to that described in [6], but improved by the use of Fourier analysis, as in [7]. The current waveform in the inductor is triangular and can be represented by a Fourier series.…”

Section: Inductor Designmentioning

confidence: 99%

“…The second part of the paper then applies the analysis of converter performance to the design and evaluation of microfabricated thin-film inductors, as a technology that has the potential to provide the performance necessary for microprocessor power delivery [4], [5], [6], [7].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Converter and inductor design for fast-response microprocessor power delivery

Mehas

Coonley

Sullivan

2000 IEEE 31st Annual Power Electronics Specialists Conference. Conference Proceedings (Cat. No.00CH37018)

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Abstract-The fundamental constraints for fast-response buck converters for applications such as microprocessor power delivery are analyzed, with an emphasis on the role of the inductor. Optimum values of ripple ratio, and thus inductor value, are calculated. Based on this analysis, microfabricated inductor designs are analyzed, and an inductor design is proposed with predicted performance including power density of 158 W/cm ¾ and 95% efficiency for an 8 MHz, 3.6 V to 1.1 V converter.

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Survey of modelling techniques used in optimisation of power electronic components

Mirjafari¹,

Balog²

2014

IET Power Electronics

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Design optimisation techniques for power electronic converters have been the subject of numerous research studies for the past 15 years. Accurate modelling is the most important task in the optimisation, and, because the nature of optimisation problem demands evaluating an objective function numerous times, fast and simplified modelling techniques are required. The objective of this study is to categorise and analyse the previous studies related to modelling techniques incorporated in design optimisation of power electronic converters. Common trends in modelling and optimisation of power electronic converters are analysed and suggestions for future research in this field will be presented.

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Design of microfabricated inductors

Cited by 14 publications

References 25 publications

New coupled EM and circuit simulation flow for integrated spiral inductor by introducing symbolic simplified expressions

New coupled EM and circuit simulation flow for integrated spiral inductor by introducing symbolic simplified expressions

Converter and inductor design for fast-response microprocessor power delivery

Survey of modelling techniques used in optimisation of power electronic components

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