NDLI: Characterization and concept for optimization of planar spiral high power high frequency coils

Content Provider	IEEE Xplore Digital Library
Author	Schmidt, I. Enders, A.
Copyright Year	2009
Description	Author affiliation: Department for EMC, Technische Universität Braunschweig Braunschweig, Germany (Schmidt, I.; Enders, A.)
Abstract	Parasitic effects lower the self-resonant frequency of a coil and therefore limit its usable frequency range. In this paper a method is presented to substantially expand the usable frequency range of high current rated inductors. The basic idea of the method is to control the resonant frequencies of a coil by placing a gap between groups of windings and to connect a resistor network in parallel. The concept is investigated at a planar spiral topology of a coil. An appropriate equivalent circuit is developed and calculated. Systematic investigations of the coil allow stating approximations about inductance, the parasitic capacitance and resonant frequency. The concept is finally approved by real measurements on a prototype coil. In a last step the proposed HF-Coil is assembled to a prototype filter.
Starting Page	24
Ending Page	28
File Size	281455
Page Count	5
File Format	PDF
ISBN	9781424442669
DOI	10.1109/ISEMC.2009.5284710
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-08-17
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Spirals Coils Resonant frequency Prototypes Inductors Resistors Network topology Circuit topology Equivalent circuits Inductance
Content Type	Text
Resource Type	Article

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