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Wireless power transfer (WPT) has demonstrated significant promise for various applications, including consumer electronics, drone charging, and mobile devices. However, misalignment between the coupling coils is a crucial issue that degrades transfer efficiency since power is transferred using an inductive coupling approach. This study presents the designed coupling coil maintains a constant mutual inductance even when the receiver coil moves freely inside the transmitter coil. This design ensures that the receiver acquires stable power from the transmitter.
Hsu et al. (Wed,) studied this question.
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