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This paper presents an improved communication architecture with increased data rate for inductive power transfer (IPT) systems. The main challenge is to enable robust and reliable communication within the noisy environment of the power transfer. Therefore, the communication channel, consisting of the coupled pair of coils of the inductive power transfer system is analysed. From this, a frequency band...
This paper presents a novel power flow controller for wireless power transfer systems. The proposed method regulates the output voltage to a constant level by discharging the output filter capacitor when the voltage across the load is higher than a desired level. Unlike the traditional DC/DC topologies, the proposed controller doesn't require a bulky DC inductor which results in a compact system....
This paper formulates the maximum RF-to-RF efficiency of inductive power transfer system with two transmitters and two receivers under the assumption that cross-coupling exists between transmitters and between receivers. Maximum efficiency is derived by jointly optimizing the input and output currents. We express the maximum efficiency by a system kQ-product, which is determined by system Z-parameters...
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