منابع مشابه
Evaluation of Eddy Losses Due to High Current Leads in Transformers Using a Subproblem Method
A subproblem finite element method is developed for evaluating the eddy losses due to high current leads in transformers. The structural component of the transformer is modeled with classical volumetric elements or more efficiently with a thin shell model (surface impedance technique). Tools are then developed to correct the inaccuracies near edges and corners inherent to thin shell models for ...
متن کاملAnalysis of Eddy-Current Losses Over Conductive Substrates with Applications to Monolithic Inductors and Transformers
In this paper, a closed-form integral representation for the eddy-current losses over a conductive substrate is presented. The results are applicable to monolithic inductors and transformers, especially when such structures are realized over an epitaxial CMOS substrate. The technique is verified against measured results from 100 MHz to 14 GHz for spiral inductors.
متن کاملClassical eddy current losses in Soft Magnetic Composites
1 a Corresponding author: [email protected] 2 This paper deals with the problem of loss evaluation in Soft Magnetic Composites (SMC), focusing 2 on the classical loss component. It is known that eddy currents can flow in these granular materials at 3 two different scales, that of the single particle (microscopic eddy currents) and that of the specimen 4 cross-section (macroscopic edd...
متن کاملEddy Current Losses in Transformer Windings and Circuit Wiring
Skin Effect Figure 1 shows the magnetic field (flux lines) in and around a conductor carrying dc or low frequency current I. The field is radially symmetrical, as shown, only if the return current with its associated field is at a great distance. At low frequency, the energy in the magnetic field is trivial compared to the energy loss in the resistance of the wire. Hence the current Introductio...
متن کاملEddy current
Eddy currents (also called Foucault currents[1]) are loops of electrical current induced within conductors by a changing magnetic field in the conductor, due to Faraday’s law of induction. Eddy currents flow in closed loops within conductors, in planes perpendicular to the magnetic field. They can be induced within nearby stationary conductors by a time-varying magnetic field created by anAC el...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Transactions of the American Institute of Electrical Engineers
سال: 1900
ISSN: 0096-3860,2330-9431
DOI: 10.1109/t-aiee.1900.4764140