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Wireless charging systems for consumer electronics suffer from the offset issue, which leads to drastic changes in the mutual inductance and thus produces unstable outputs. To solve the issue, this paper proposes an integrated hybrid dual-frequency wireless charging system with an anti-offset performance. The proposed topology can be equivalent to the CLC-S and S-S topologies at fundamental and third harmonic frequencies, respectively. Combining the opposite trends of the output voltages in the CLC-S and S-S topologies, the anti-offset performance can be realized. To further enhance the anti-offset performance, the phase-shift control is adopted to adjust the ratio of fundamental and third harmonic, thus extending the anti-offset range. The mathematical and experimental models are established. The experimental results are well aligned with the calculated ones, confirming that the proposed system can maintain stable output and high efficiency under different offsets. © Published under licence by IOP Publishing Ltd.
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ISSN: 1742-6588
Year: 2024
Issue: 1
Volume: 2903
Language: English
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ESI Highly Cited Papers on the List: 0 Unfold All
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30 Days PV: 1
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