An integrated multimode battery charger in a Qi compliant wireless power receiver

Wu, Chubin; Zhang, Zhang; Cheng, Xin; Xie, Guangjun

doi:10.1007/s10470-019-01582-z

Cited by 1 publication

(2 citation statements)

References 17 publications

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“…C i and R i are the resonant capacitance and load resistance of the ith coil, respectively. According to Kirchhoff's law, the power ratio κ between the adjacent coils can be expressed as (1).…”

Section: Relationship Between Power Distribution and Mutual Inductanc...mentioning

confidence: 99%

“…Nowadays, inductive power transfer technique has drawn more than more attention and has been widely used in various applications such as house appliances, consumer electronics, biomedical implants, and electrical vehicles. [1][2][3] In the IPT technique, the power is transferred with high frequency magnetic field; therefore, it has several important benefits in comparison to the conventional wireline charging method, including higher safety, higher flexibility, and longer product life. However, the power transfer distance is usually limited by coil sizes in the IPT system.…”

Section: Introductionmentioning

confidence: 99%

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Flexible design method for multiple loads inductive power transfer system with equal power distribution

Wang

Qian

Cui

et al. 2022

Circuit Theory & Apps

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An inductive power transfer (IPT) system for powering multiple sensor nodes placed at various distances is proposed, in which the relay coil not only performs as a power relay to enhance the magnetic field along the power transfer route but also supplies energy to the local load. Based on Kirchhoff's law, the equivalent circuit model of the multi-load IPT system is established, and the relationship between power distribution and mutual inductance of adjacent coils is investigated. Aiming at practical applications, a flexible design method for the adjacent coil distance is proposed to adjust the mutual inductance and regulate the power distribution. Experimental results show that the equal power distribution is achieved for five loads across a transfer distance of 60.9 cm. Each load dissipates about 0.78 W with a power variation within 6.3%. The results indicate the feasibility of the proposed design method in the multiple-load wireless sensor network (WSN) applications.

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Section: Relationship Between Power Distribution and Mutual Inductanc...mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Flexible design method for multiple loads inductive power transfer system with equal power distribution

Wang

Qian

Cui

et al. 2022

Circuit Theory & Apps

View full text Add to dashboard Cite

show abstract

An integrated multimode battery charger in a Qi compliant wireless power receiver

Cited by 1 publication

References 17 publications

Flexible design method for multiple loads inductive power transfer system with equal power distribution

Flexible design method for multiple loads inductive power transfer system with equal power distribution

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