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Inductor

About: Inductor is a research topic. Over the lifetime, 52565 publications have been published within this topic receiving 484068 citations. The topic is also known as: passive two terminal.


Papers
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Journal ArticleDOI
TL;DR: In this article, a new strategy for controlling voltage and frequency of a self-excited induction generator (SEIG) is presented, which operates in the linear region of the core magnetizing curve, so that efficiency and performance are upgraded.
Abstract: A new strategy for controlling voltage and frequency of a self excited induction generator (SEIG) is presented. The SEIG operates in the linear region of the core magnetizing curve, so that efficiency and performance are upgraded. An external excitation circuit, comprising permanently connected capacitors and electronically switched inductances is used. The external circuit allows to compensate for the generator reactive demand. A detailed analysis is performed, showing some salient aspects related to the connection of the external excitation circuit on the control performance. Asynchronous switching is used, but some important considerations must be taken into account related to the instantaneous phase angle between stator voltage and external inductor current at the switching instant, if good transient response is desired. Sliding mode controllers are proposed, showing good dynamic response and robust behavior upon changes in load and generator parameters. Computer simulations are used to demonstrate the validity of the proposed scheme.

141 citations

Journal Article
TL;DR: In this paper, a circuit analysis of frequency selective surfaces is reviewed with the aim to underline range of validity of different models and their advantages in terms of simplicity and physical insight.
Abstract: Circuit analysis of frequency selective surfaces is reviewed with the aim to underline range of validity of different models and their advantages in terms of simplicity and physical insight. The circuit approach is based on an equivalent representation of the FSSs with series or shunt connections of inductances and capacitances. Dense non-resonant periodic surfaces (i.e.: grid or patch arrays) can be analyzed analytically by computing the values of inductors or capacitors via the homogenization theory. As the lattice period increases with respect to the operating wavelength or the element shape becomes resonant, a fully analytical circuital approach fails, in particular, in the presence of thin substrates. However, simple circuit approaches can still be employed by deriving lumped parameters values via a quick pre-processing and then generalizing them. The results are accurate up to the resonant frequency region of the element. By including an additional lumped element it is possible, taking into account the effect of the first high order Floquet harmonic. The multi-mode formulation is also able to catch the highly nonlinear response of FSS screens in the grating lobe region provided that the current profile of the element does not change significantly.

141 citations

Proceedings ArticleDOI
17 Mar 2013
TL;DR: In this article, the influence of the transmission frequency on the inductor quality factor and the efficiency of IPT systems is analyzed taking also the admissible field emissions as limited by standards into account.
Abstract: Inductive Power Transfer (IPT) is well-established for applications with biomedical implants and radio-frequency identification systems. Recently, also systems for the charging of the batteries of consumer electronic devices and of electric and hybrid electric vehicles have been developed. The efficiency η of the power transfer of IPT systems is given by the inductor quality factor Q and the magnetic coupling k of the transmission coils. In this paper, the influence of the transmission frequency on the inductor quality factor and the efficiency is analyzed taking also the admissible field emissions as limited by standards into account. Aspects of an optimization of the magnetic design with respect to a high magnetic coupling and a high quality factor are discussed for IPT at any power level. It is shown that the magnetic coupling mainly depends on the area enclosed by the coils and that their exact shape has only a minor influence. The results are verified with an experimental prototype.

141 citations

Journal ArticleDOI
TL;DR: In this article, the feasibility of inkjet-printed passive components such as resistor, capacitor, and inductor were demonstrated on a polyimide (PI) substrate with various functional inks.

141 citations

Journal ArticleDOI
TL;DR: In this article, a fully integrated fully differential distributed amplifier with 5.5 dB pass-band gain and 8.5 GHz unity-gain bandwidth is described, which eliminates the source degeneration effects of parasitic interconnect, bond wire, and package inductors.
Abstract: A fully integrated fully differential distributed amplifier with 5.5 dB pass-band gain and 8.5 GHz unity-gain bandwidth is described. The fully differential CMOS circuit topology yields wider bandwidth than its single-ended counterpart, by eliminating the source degeneration effects of parasitic interconnect, bond wire, and package inductors. A simulated annealing CAD tool underpins the parasitic-aware methodology used to optimize the design including all on-chip active and passive device and off-chip package parasitics. Mixed-mode S-parameter measurement techniques used for fully differential circuit testing are reviewed. Integrated in 1.3/spl times/2.2 mm/sup 2/ in a standard 0.6 /spl mu/m CMOS process, the distributed amplifier dissipates 216 mW from a single 3 V supply.

140 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
2023985
20222,105
20211,507
20202,637
20193,217
20183,173