Wireless Power Transfer
JMAG makes it possible to carry out investigations ranging from basic RLC analyses to efficiency predictions. To determine the efficiency of a wireless power transfer design, you must analyze the power transfer as a function of position and angle. This can be done quickly in JMAG using the parametric analysis tool. This tool will not only predict optimal positioning, but it will also help develop a robust and reliable design.
Self-inductance, mutual inductance, induction voltage, load current, power, copper loss, iron loss, transmission efficiency, temperature distribution
Power Transmission Efficiency
In the electromagnetic induction-type wireless power supply, magnetic flux linking to the upper power-receiving side reduces due to positional misalignment. A decrease in flux linkage causes a reduction in the mutual inductance between coils. From this the resonant frequency determined by the inductance and the capacitor is shifted, and transmission efficiency decreases. Also, when the voltage of the power-receiving side coil is constant, the input voltage on the power supply side changes, and the supply power itself reduces.
This document introduces the procedure in obtaining the optimum solution for geometries of transmission coils (angle that defines position) for simple magnetic resonance wireless power transfer system. Even if you are a user of applications excludin…
12 Jan 2023
Magnetic field simulation tends to be run as a large-scale analysis lately, being backed by the remarkable performance improvement of the computer. JMAG features a high-performance parallel solver in response to the need to perform a large-scale ana…
9 Sep 2022
In this example, an example is presented investigating by using electromagnetic field analysis whether stray loss can be suppressed using an aluminum shield.
24 Dec 2021
This Application Note presents how to obtain the power transmission efficiency when the feeder wire’s position is moved in both the horizontal and vertical directions from a reference position, and how to display the flow of magnetic flux.
26 Aug 2021
Hajime Igarashi, Hokkaido University
15 Feb 2021
Keigo Ukita, Railway Technical Research Institute
6 Jan 2020
Daisuke Sato, Nagaoka Motor Development Co., Ltd.
6 Jan 2020
Mesh is essential for the accuracy and convergence of iterative calculations such as ICCG in the finite element method.
27 Mar 2019