Abstract
In this paper, we present the design and evaluation of a software-based wireless power transfer platform that enables the development of a prototype involving various open- and closed-loop power control functions. Our platform is based on a loosely coupled planar wireless power transfer circuit that uses a class-E power amplifier. In conjunction with this circuit, we implement flexible control functions using a National Instruments Data Acquisition (NI DAQ) board and algorithms in the MATLAB/Simulink. To verify the effectiveness of our platform, we conduct two types of power-control experiments: a no-load or metal detection using open-loop power control, and an output voltage regulation for different receiver positions using closed-loop power control. The use of the MATLAB/Simulink software as a part of the planar wireless power transfer platform for power control experiments is shown to serve as a useful and inexpensive alternative to conventional hardware-based platforms.
Highlights
In recent years, planar wireless power transfer has attracted significant attention [1,2,3]
We proposed a software-based wireless power transfer platform using
In order to verify the performance of our proposed software-based platform, we developed a software-based platform for experiments with two types of power control, in terms of output voltage regulation for different receiver positions and no-load or metal detection
Summary
Planar wireless power transfer has attracted significant attention [1,2,3]. One of the important issues to be addressed in the design of various planar wireless power transfer systems is the occurrence of power fluctuation, which is caused by coupling and loading variations. The closed-loop power control monitors power-level variations in the receiver and transmits this data to the transmitter controller via a communication link. We present the design and evaluation of a software-based wireless power transfer platform that allows us to perform flexible open- and closed-loop power control experiments. As opposed to the conventional hardware-based platform, implementation with MATLAB/Simulink software facilitates the modification of power control algorithms, avoiding a long and costly process for the development of separate control hardware. The use of MATLAB/Simulink software as a part of the planar wireless power transfer system for power control experiments serves as a useful and inexpensive alternative to the conventional hardware-based platform
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