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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...
This paper describes an approach for a contactless, inductively coupled resonant energy supply system for multiple, independent endpoints. Typical contactless inductive energy supplies in industrial applications involve a combination of one primary inverter/coil and one secondary coil with a rectifier and a load. The work presented in this paper issues a one-to-many-approach instead, which can be...
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