A Novel Single-Layer Winding Array and Receiver Coil Structure for Contactless Battery Charging Systems With Free-Positioning and Localized Charging Features

Zhong, Wenxing; Liu, Xun; Hui, S. Y. Ron

doi:10.1109/tie.2010.2098379

Cited by 240 publications

(102 citation statements)

References 19 publications

(15 reference statements)

Supporting

Mentioning

101

Contrasting

Unclassified

Order By: Relevance

“…Multiple Input Single Output coil [72] Double-D-Quadrature [107] U-coil [65] Core array [11] Four-coils [22] Cellular architecture [73] Dipole coil [68] Two-coils…”

Section: Wpt Icmentioning

confidence: 99%

“…Zhong et al [11] presented a novel WPT by adopting several coils at the primary side and one coil at the secondary side. The transmitter plate consists of several coils, with each coil wrapped around the ferrite core, whereas the receiver winding is fixed on the ferrite plate.…”

Section: Inductive Couplingmentioning

confidence: 99%

“…This has resulted in a significant diversity of battery chargers on the market, which can be considered a serious problem [11]. Conventionally, charging these devices is performed based on wired technology that requires a wire connected to an electrical wall outlet.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Opportunities and Challenges for Near-Field Wireless Power Transfer: A Review

et al. 2017

View full text Add to dashboard Cite

Abstract:Traditional power supply cords have become less important because they prevent large-scale utilization and mobility. In addition, the use of batteries as a substitute for power cords is not an optimal solution because batteries have a short lifetime, thereby increasing the cost, weight, and ecological footprint of the hardware implementation. Their recharging or replacement is impractical and incurs operational costs. Recent progress has allowed electromagnetic wave energy to be transferred from power sources (i.e., transmitters) to destinations (i.e., receivers) wirelessly, the so-called wireless power transfer (WPT) technique. New developments in WPT technique motivate new avenues of research in different applications. Recently, WPT has been used in mobile phones, electric vehicles, medical implants, wireless sensor network, unmanned aerial vehicles, and so on. This review highlights up-to-date studies that are specific to near-field WPT, which include the classification, comparison, and potential applications of these techniques in the real world. In addition, limitations and challenges of these techniques are highlighted at the end of the article.

show abstract

“…Multiple Input Single Output coil [72] Double-D-Quadrature [107] U-coil [65] Core array [11] Four-coils [22] Cellular architecture [73] Dipole coil [68] Two-coils…”

Section: Wpt Icmentioning

confidence: 99%

Section: Inductive Couplingmentioning

confidence: 99%

See 1 more Smart Citation

Opportunities and Challenges for Near-Field Wireless Power Transfer: A Review

et al. 2017

View full text Add to dashboard Cite

show abstract

“…Therefore, WPT can be used for wireless battery charging for implantable biomedical devices [1][2][3][4] and portable electronics [5][6][7]. Moreover, even electric vehicles (or roadway-powered electric vehicles) can be wirelessly powered [8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Determining the Frequency for Load-Independent Output Current in Three-Coil Wireless Power Transfer System

Sun

Tang

2015

Energies

View full text Add to dashboard Cite

Abstract:Conditions for load-independent output voltage or current in two-coil wireless power transfer (WPT) systems have been studied. However, analysis of load-independent output current in three-coil WPT system is still lacking in previous studies. This paper investigates the output current characteristics of a three-coil WPT system against load variations, and determines the operating frequency to achieve a constant output current. First, a three-coil WPT system is modeled by circuit theory, and the analytical expression of the root-mean-square of the output current is derived. By substituting the coupling coefficients, the quality factor, and the resonant frequency of each coil, we propose a method of calculating the frequency for load-independent output current in a three-coil WPT system, which indicates that there are two frequencies that can achieve load-independent output current. Experiments are conducted to validate these analytical results.

show abstract

“…Inductive power transfer (IPT) refers to the use of space electromagnetic coupling to transfer electricity power from a stationary power source to one or more movable loads [1,2]. As an innovative technology, it is known for its safeness, efficiency and flexibility, thus it gains increasing attention in academic research and shows prospects of industrial use [3][4][5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Optimizing Startup Frequency Setting of the Inductive Power Transfer System

Wang¹,

Wu²,

Sun³

et al. 2014

PIER M

View full text Add to dashboard Cite

Abstract-Based on energy injection and free resonant mode, an approach to optimize the startup frequency setting of the voltage-fed inductive power transfer (IPT) system is proposed to mitigate the effects of uncertain system parameters and load conditions. Differential equations of the primary resonant network on the free resonant mode is firstly established, then the free resonant frequency with different parameters and load conditions is calculated and verified with the soft-switching frequency of system based on stroboscopic mapping modeling method and fixed points theory. By controlling the micro-energy injection of system and free resonance, the frequency of free resonant mode is detected, and is regarded as the fixed frequency of startup process. Hence, the proposed strategy solves the uncertainty of the startup frequency and system re-setting to fit with changed system parameters and load conditions. This method also initiates immediate protection when the system operates under zero loads. In sum, our experimental results verify the theoretical implication, effectiveness, and merits of the proposed approach.

show abstract

A Novel Single-Layer Winding Array and Receiver Coil Structure for Contactless Battery Charging Systems With Free-Positioning and Localized Charging Features

Cited by 240 publications

References 19 publications

Opportunities and Challenges for Near-Field Wireless Power Transfer: A Review

Opportunities and Challenges for Near-Field Wireless Power Transfer: A Review

Determining the Frequency for Load-Independent Output Current in Three-Coil Wireless Power Transfer System

Optimizing Startup Frequency Setting of the Inductive Power Transfer System

Contact Info

Product

Resources

About