Design and simulation of printed winding inductors for inductive wireless power charging applications

Jugieu, David; Vigneau, Guillaume; Cheikh, Mohamed; Kessler, S.; Benbouhout, Rachid; Takacs, Alexandru

doi:10.1109/wpt.2015.7140119

Cited by 4 publications

(3 citation statements)

References 5 publications

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“…For near field WET systems, inductive coupling is widely investigated compared to other methods such as capacitive coupling due to safety concerns. Various materials have also been implemented in WET systems for different purposes, such as polydimethylsiloxane [8], Kapton polyimide [9], NiZn based substrates [10] and glass reinforced epoxy laminated sheets (such as FR4) [11]. Besides that, several methods to improve the efficiency of WET systems have been investigated.…”

Section: Introductionmentioning

confidence: 99%

A systematic optimization procedure of antenna miniaturization for efficient wireless energy transfer

Misran¹,

Rahim²,

Said³

et al. 2019

IJECE

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This paper presents a systematic optimization procedure to determine the reduced antenna size aimed at obtaining the best efficiency or at least equal performance with the initial large antenna design in a wireless energy transfer (WET) system. A low-cost, square-shaped planar loop antenna designed on each side of FR4 substrate is used as both the miniature transmitter and receiver antennas operating at 13.56 MHz for the near-field communication (NFC) band. The effect of distance and antenna size on the link parameters such as inductance, resistance and mutual coupling is studied, prior to the study of their effects on WTE. The accuracy of the procedure is cross-validated using two methods; analytically and using full wave simulations. The simulation then is verified using lab measurement setup at real scene environment. Trends of the resulting curves using both methods indicated good agreements, and optimal miniature antenna for the best wireless transfer efficiency (WTE) is able to be quickly determined. A miniature antenna is able to achieve 4% wireless transfer efficiency improvement with 47% antenna size reduction. Such method can be applied to efficiently estimate a low-cost WTE system setup, besides enabling the integration of self-tuning or reconfigurability features in such systems for a known initial antenna size to mitigate changes to its operating distance.

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Section: Introductionmentioning

confidence: 99%

A systematic optimization procedure of antenna miniaturization for efficient wireless energy transfer

Misran¹,

Rahim²,

Said³

et al. 2019

IJECE

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show abstract

“…Previous studies [2]- [5] regarding inductive wireless power transfer for mobile phones and other multimedia technology were already conducted. These motivates the study to somehow use the principle in an inductive plug-socket pair for small appliances as an alternative to classical electrical outlets and thereby, provide additional avenue for safer connection of electrical devices to AC sources.…”

Section: Introductionmentioning

confidence: 99%

Design of an Inductive Plug-Socket Pair Using Silicon Laminated Steel Core

2019

Proceedings of 2019 the 9th International Workshop on Computer Science and Engineering

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One of the common electrical related accidents at home is electric shock due to misuse and mishandling of electrical plugs and sockets. This study presents the concept of a device that would somehow lessen the cases of electrocution among children, adolescents and adults. It aims to design an inductive plugsocket pair prototype in advancement to the existing conductive plug-socket pair. In the construction proper, considerations were focused on the size of the laminated silicon core and turns-ratio. To determine the characteristic of the prototype, measurement of the core and copper losses using no-load and short-circuit tests, respectively, as well as the computation of voltage regulation and efficiency of the prototype were done. The study came up with the size of the cores as 0.75 in x 0.75 in for the socket and 0.5 in x 0.5 in for the plug and number of turns as 2200 turns for the socket and 4400 turns for the plug. Performing no-load and shortcircuit tests, the equivalent resistance and reactance of the inductive plug-socket pair were determined to be 47.2590 Ω and 144.6495 Ω respectively. Last but not the least, the efficiency and voltage regulation of the prototype were 61.85% and 31.42%, respectively, which showed as proof of concept of the feasibility of an inductive plug-socket pair device to be used for small appliances.

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“…For near field WET system, interest in inductive coupling has increase compare to capacitive coupling because of its safety. Researchers have tried various material to be implement in WET system for different purpose like polydimethylsiloxane (PDMS) [8], Kapton polyimide [9], NiZn based substrate [10] and Glass reinforced epoxy laminated sheets (FR4) [11]. Coupled of method to improve the WTE of the WET system have been developed, such as using loaded capacitance [12], antiparallel loop technique [13], higher order coil system [3] and applying metamaterial [14] in the WET system.…”

Section: Introductionmentioning

confidence: 99%