Analytical design procedure for resonant inductively coupled wireless power transfer system with class-E&lt;sup&gt;2&lt;/sup&gt; DC-DC converter

Nagashima, Tadamichi; Inoue, Kazuhide; Wei, Xiuqin; Bou, Elisenda; Alarcón, Eduard; Kazimierczuk, Marian K.; Sekiya, Hiroo

doi:10.1109/iscas.2014.6865078

Cited by 12 publications

(6 citation statements)

References 8 publications

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“…As the airgap of the ICT is great, the coupling is weak. Consequently, to achieve the demanded transmitted power, important reactive power need to be directed, so the usage of resonant elements [37][38][39][40][41][42][43] in both sides of the ICT is essential as compensation to ensure good efficiency. Furthermore, the output parameters at the load part should be monitored in order to supervise the charging profile of the battery and to assure its protection.…”

Section: Static Battery Chargingmentioning

confidence: 99%

“…The setting in place of dynamic IPT schemes in the road infrastructure will eliminate the necessity for charging halts and could result in a noteworthy reduction in the size of the on-board battery [38][39][40][41][42][43]. The fruitful illustration of the practicality of this technology may point out a tangible media to increase the reception of electric mobility and to deal with the furthermost critical features of the use of EV.…”

Section: Ipt In Ev On Roadmentioning

confidence: 99%

“…In addition to these applications, many works about the IPT system and its applications could be found in the literature, see e.g., [30][31][32][33][34][35][36]. Moreover, concerning high frequency resonant wireless energy tools for CET and IPT, many works regarding resonant converters have been published, see e.g., [37][38][39][40][41][42][43].…”

Section: Introductionmentioning

confidence: 99%

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Review of Contactless Energy Transfer Concept Applied to Inductive Power Transfer Systems in Electric Vehicles

Razek

2021

Applied Sciences

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Nowadays the groundbreaking tools of contactless energy transfer reveals new opportunities to supply portable devices with electrical energy by eliminating cables and connectors. One of the important applications of such technology is the energy providing to electric and hybrid vehicles, (EV) and (HEV). These contribute to the use of cleaner energy to protect our environment. In the present paper, after exposing the available contactless energy transfer (CET) available systems, we examine the appropriateness of these systems for EV. After such exploration, it is shown that the most suitable solution is the inductive power transfer (IPT) issue. We analyze such procedure in general and indicate its main usages. Next, we consider the practice of IPT in EV and the different option in the energy managing in EV and HEV concerning battery charging. Following, we review the modes of using the IPT in immobile case and in on-road running. Following, the modeling issues for the IPT system escorting the vehicle structure are then exposed. Lastly, the electromagnetic compatibility (EMC) and human exposure analyses are assessed involving typical appliance.

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Section: Static Battery Chargingmentioning

confidence: 99%

Section: Ipt In Ev On Roadmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Review of Contactless Energy Transfer Concept Applied to Inductive Power Transfer Systems in Electric Vehicles

Razek

2021

Applied Sciences

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“…Once the limitations on the coil geometry and coupled impedances are fully defined, the matching network could be optimized to minimize loss. Alternatively, the network could be removed altogether, as recent work [24], [25] has shown that if the coil geometry can be fixed, providing a constant coupling coefficient, then the power amplifier and rectifier can also be optimized and made independent of resistive changes to the load resistance on the rectifier.…”

Section: E Controllable Impedance Matching Systemmentioning

confidence: 99%

An MRI Compatible RF MEMs Controlled Wireless Power Transfer System

Byron

Winkler

Robb

et al. 2019

IEEE Trans. Microwave Theory Techn.

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In magnetic resonance imaging (MRI), wearable wireless receive coil arrays are a key technology goal. An MRI compatible wireless power transfer (WPT) system will be needed to realize this technology. An MRI WPT system must withstand the extreme electromagnetic environment of the scanner and cannot degrade MRI image quality. Here, a WPT system is developed for operation in MRI scanners using new microelectromechanical RF switch (RF MEMs) technology. The WPT system includes a class-E power amplifier, RF MEMs automated impedance matching, a primary coil array employing RF MEMs power steering, and a flexible secondary coil with class E rectification. To adapt WPT technology to MRI, techniques are developed for operation at high magnetic field, and to mitigate the RF interactions between the scanner and WPT system. A major challenge was the identification and suppression of noise and harmonic interference, by gating, filtering, and rectifier topologies. The system can achieve 63% efficiency while exceeding 13 W delivery over a coil distance of 3.5 cm. For continuous WPT beyond 5W, added filters and fullwave class E rectification lowers harmonic generation at some cost to efficiency, while image SNR reaches about 32% of the ideal. RF-gated WPT, which interrupts power transfer in the MRI signal acquisition interval, achieves SNR performance to within 1 dB of the ideal. With further refinement, the inclusion of WPT technology in MRI scanners appears completely feasible.

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“…When the switch is off, the DC power source will charge the LC resonator and the load; when the switch is on, the energy stored in the LC resonator releases the power to the C 1 , and since the resonant frequency is different between the LC resonator and the L, C, C 1 series network, the parameters of the circuit should be designed to make sure that the voltage of C 1 will be exactly zero at the end of the switch-off mode, resulting in a ZVS action. Reference [57] presents an example of a Class E amplifier application for a Reference [58] applied the Class E technique in both the transmitter and the receiver. The simulation results showed that the circuit could achieve ZVS/ZDS conditions for both sides with an output power of 5 W and an overall efficiency of 65.9%.…”

Section: Frequency Splittingmentioning

confidence: 99%

Integrated circuits design and control solutions for wireless power transfer applications

Bai¹

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Analytical design procedure for resonant inductively coupled wireless power transfer system with class-E<sup>2</sup> DC-DC converter

Cited by 12 publications

References 8 publications

Review of Contactless Energy Transfer Concept Applied to Inductive Power Transfer Systems in Electric Vehicles

Review of Contactless Energy Transfer Concept Applied to Inductive Power Transfer Systems in Electric Vehicles

An MRI Compatible RF MEMs Controlled Wireless Power Transfer System

Integrated circuits design and control solutions for wireless power transfer applications

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