Analytical design for resonant inductive coupling wireless power transfer system with class-E inverter and class-DE rectifier

Nagashima, Tadamichi; Wei, Xiuqin; Bou, Elisenda; Alarcón, Eduard; Sekiya, Hiroo

doi:10.1109/iscas.2015.7168726

Cited by 10 publications

(7 citation statements)

References 5 publications

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“…With 1 MHz of resonant frequency and 50 Ω of load resistance, the efficiency of two coils proposed system reached to 49.4% [97]. In [98], by adding more class-DE rectifier as a receiver and designing the specification for self-inductance, resistances, the system achieved a better result at 73% overall efficiency or 9.87 W (50 Ω) output power, coils distance of 10 cm. Deploy System.…”

Section: Resonant Inductive Couplingmentioning

confidence: 98%

Wireless Power Transfer Near-field Technologies for Unmanned Aerial Vehicles (UAVs): A Review

Le¹,

Truong²,

Quyen³

et al. 2020

EAI Endorsed Transactions on Industrial Networks and Intelligen

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Wireless power transfer (WPT) techniques are being popular currently with the development of midrange wireless powering and charging technology to gradually substitute the need for wired devices during charging. Unmanned Aerial Vehicles (UAVs) are also being used with many practical purposes for agriculture, surveillance, and healthcare, etc. There is a trade-off between the weight of the UAVs or their batteries and their flying time. In order to support those UAVs perform better in their tasks, WPT is applied in UAVs to recharge batteries which help to increase their working time. This paper highlights up-to-date studies that are specific to near-field WPT deploying into UAVs. The charging distances, the transfer efficiency, and transfer power, etc. are considered to provide an overview of all common problems in using and charging UAVs, especially for autonomous landing and charging. By classification and suggestions in specific problems will be provided opportunities and challenges with respect to apply near-field WPT techniques for charging the battery of UAVs and other applications in the real world.

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Section: Resonant Inductive Couplingmentioning

confidence: 98%

Wireless Power Transfer Near-field Technologies for Unmanned Aerial Vehicles (UAVs): A Review

Le¹,

Truong²,

Quyen³

et al. 2020

EAI Endorsed Transactions on Industrial Networks and Intelligen

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show abstract

“…The The Class-E inverter ensures good power conversion efficiency during high-frequency operations due to Class-E ZVS condition. It is desirable to maintain the duty-ratio D for MOSFET as 50% when designing the class E inverter for open-loop operations in optimal conditions [24]. However, the component values should be satisfied uniquely for achieving the Class-E ZVS condition.…”

Section: Class-e Inverter Designmentioning

confidence: 99%

“…𝑁 𝑙 𝑖=1 (24) Where 𝑁 𝑙 represents the number of turns of the coil, 𝜀 𝑖𝑗 = 1 for 𝑖 = 𝑗 and 𝜀 𝑖𝑗 = 0 otherwise.…”

Section: Self-inductancementioning

confidence: 99%

Design and Simulation of a Multi-Receiver Wireless Power Transfer System Based on Transmitter Control Method

Mohammed

Hassan

2022

jeasd

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As is usual in a multiple-receiver wireless power transfer (WPT) system based on s-s geometry, the power of load obtained and system efficiency are very sensitive to changes in the number of receivers. An improved multi-receivers WPT system is introduced that ensures the power given for each load remains stable while other receivers enter or exit the system. This study proposes a multiple-load WPT system operated by a class E amplifier. The equivalent system circuit model is analyzed of major parameters such as receiver power, transmitter power, transmission efficiency, and each load power allocation. A control circuit is proposed to obtain high transmission efficiency, power control for the transmitter, and arbitrary power distribution ratios of receivers for different loads. The cross-coupling between the receiver coils is prevented by adding compensating capacitors at the receiver side in series. This further increases the power stability obtained by loads. Finally, in order to verify the feasibility of the proposed process, simulation results are presented.

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“…Various topologies can realize the high-frequency rectification, such as full-bridge [14], class E [15], class DE [16], class EF [17], class F [18]. Due to the increased switching losses, the rectification efficiency may distinctly reduce when working in the MHz region.…”

Section: Introductionmentioning

confidence: 99%

Synchronous Push–Pull Class E Rectifiers With Load-Independent Operation for Megahertz Wireless Power Transfer

Huang

Dou

Lin

et al. 2021

IEEE Trans. Power Electron.

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Analytical design for resonant inductive coupling wireless power transfer system with class-E inverter and class-DE rectifier

Cited by 10 publications

References 5 publications

Wireless Power Transfer Near-field Technologies for Unmanned Aerial Vehicles (UAVs): A Review

Wireless Power Transfer Near-field Technologies for Unmanned Aerial Vehicles (UAVs): A Review

Design and Simulation of a Multi-Receiver Wireless Power Transfer System Based on Transmitter Control Method

Synchronous Push–Pull Class E Rectifiers With Load-Independent Operation for Megahertz Wireless Power Transfer

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