Design of large air-gap transformers for wireless power supplies

O'Brien, K.; Scheible, Guntram; Gueldner, H.

doi:10.1109/pesc.2003.1217690

Cited by 10 publications

(5 citation statements)

References 6 publications

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“…Inductive power transfer (IPT) being a wireless power transfer system is a promising futuristic technology with applications in various fields like medical [2,3], domestic and industrial [4][5][6] and [12,13]. There are no wired connections between the primary and secondary in the IPT model [7][8][9].…”

Section: Introductionmentioning

confidence: 99%

LCL Topology Based Single Stage BoostRectifier Topology for Wireless EV Charging

Sasikumar¹,

Deepa²

2018

JGE

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Research into Wireless power transfer, its applications and adoption is currently growing at a rapid rate. Wireless Power Transfer (WPT) provides a lot of advantages and serves as a solution to the drawbacks of wired power transfer techniques. Research nowadays is focused on developing an inductive power transfer module for transferring power wirelessly. In order to improve the efficiency and the range of power transfer, new coil structures and design schemes for wireless power transfer have been introduced. This paper provides a comparative study of a WPT circuit with a boost rectifier circuit and another with a single-stage boost rectifier circuit, with focus on reducing switching losses and complexity. The DC side inductor and switch of the boost circuit is replaced with an AC side inductor to overcome the disadvantages of boost circuit. For each circuit explained in this paper, Matlab simulation results of output voltage, current and efficiency are analyzed and presented.

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Section: Introductionmentioning

confidence: 99%

LCL Topology Based Single Stage BoostRectifier Topology for Wireless EV Charging

Sasikumar¹,

Deepa²

2018

JGE

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“…The analysis together with design of the gapped magnetic components and the power converter operation have been presented in Ref [7][8][9][10][11]. The applications of the large air-gap have been also found in wireless power supplies [12], flyback and forward converter [13]. The control method using inductor-capacitor-inductor [14] for low power has been reported.…”

Section: Introductionmentioning

confidence: 99%

Study of high power contactless energy transmission for EV charging

Zhang

2014

2014 IEEE International Energy Conference (ENERGYCON)

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This paper deals with issues of Contactless power converter (CLPC) including converter constitution, circuit model, power transmission and power regulation. Based on a newly developed equivalent load circuit, the influences of contactless transformer (CLT) and its spacing on the energy transmission of the CLPC are investigated. It is found that the relationship between the power transmission and the spacing is not monotonic. Higher level of spacing may result in higher output power or lower output power under different conditions. Experimental results are presented to verify the theoretical analysis.

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“…The calculation of parameters of a gapped transformer has been presented in Reference . The applications of the large air gap have also been found in wireless power supplies , flyback and forward converter . Usually, large air‐gapped converter needs a resonant conversion method to overcome the large leakage inductance .…”

Section: Introductionmentioning

confidence: 99%

Design of a contactless power charger for a functional jacket

Lü

Cheng

Ding

et al. 2011

Circuit Theory & Apps

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SUMMARYThis paper presents a contactless power charger for a functional jacket. The contactless power conversion, using the contactless power transformer, is examined. The primary and secondary sides of the transformer are separated by a large air gap, and hence, the power transfer can be obtained without physical contact. The characteristics of the gapped transformer and the compensation methodology on both the primary side and secondary side, are investigated in detail. The contactless power converter using phase-locked loop control is presented. Experiments and results are disclosed.

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Design of large air-gap transformers for wireless power supplies

Cited by 10 publications

References 6 publications

LCL Topology Based Single Stage BoostRectifier Topology for Wireless EV Charging

LCL Topology Based Single Stage BoostRectifier Topology for Wireless EV Charging

Study of high power contactless energy transmission for EV charging

Design of a contactless power charger for a functional jacket

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