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The purpose of calculation of parameters of magnetically coupled coils using Ansoft Q3D Extractor program is to find out the electric parameters: R, L, C and G.
This paper proposes a Q-enhancement method to improve the quality factor of coils in a resonant inductive coupling wireless power transfer system (WPTS). The proposed WPTS increases the transfer power and the transfer efficiency, simultaneously, especially at transfer distance over the coil diameter. The proposed Q-enhancement method is verified both by calculation and simulation results, which match...
Representation of an accurate equivalent circuit model of sensor coil is an important issue, an operational frequency being higher. Generally, the coil is represented by an inductance element connected with a resistance in series and a capacitance in parallel. In use of multi-layered coils at medium wave frequencies, it is however considered that the correction of the model should be needed to make...
Short circuits in the electric circuits can be modeled by various equivalents. In the article problem of change of the input impedance of the coil is considered at short circuit of one or several turns.
This paper discusses the three most common in-process electrical winding tests. These include the hipot, high voltage impulse and winding resistance tests. Then it discusses additional auxiliary tests which are commonly performed on windings such as inductance, rotation direction, magnet field mapping and partial discharge. Important parameters for properly conducting each of the tests in a production...
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