Analysis and design of coupling capacitors for contactless capacitive power transfer systems

Rozario, Deepak; Azeez, Najath Abdul; Williamson, Sheldon S.

doi:10.1109/itec.2016.7520244

Cited by 23 publications

(17 citation statements)

References 12 publications

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“…The near-field approach can be divided into several types which are an inductive resonance frequency coupling (IRFC), ultrasonic energy transfer, and near-field capacitive coupling (NCC). Previously, the comparison of characteristics of each type of wireless power transfers has been made by other researchers and based on the comparison made, every type of wireless power transfers has the advantage over other types [3][4]. This reason reinforces that each type of WPT can be applied according to suitability and requirement of the applications.…”

Section: Introductionmentioning

confidence: 95%

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A New Design of Capacitive Power Transfer Based on Hybrid Approach for Biomedical Implantable Device

Mustapa

Saat

Yusmarnita

2019

IJECE

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<p>This paper presents the development of a new design method of capacitive power transfer (CPT) which is based on hybrid concept for Biomedical Implants. This method is able to improve various issues found in the widely used CPT system that is bipolar CPT method. Based on the ability of this purposed, the simulation of the CPT system has been designed to prove an amount of power transferred through a layer of tissue. The design used to validate the suggested model which to powering implanted device, and it was performed with 3cm square plates, which have a layer of beef with the 5mm thickness in between 2 coupling plate. Power signal was generated by Class E zero voltage switching. The Class E zero voltage switching has been designed to generating alternate current with the 1MHz frequency appropriate to the hybrid CPT system specification.</p><p class="Abstract"> </p>

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Section: Introductionmentioning

confidence: 95%

“…The capacitive wireless power transfer, on the other hand, has been used in several applications and has been proposed for biomedical implantable device since 2009 by Amir M. Sodagar et. al [2][3][4][5][6][7][8][9][10][11]. This approach was also recently used for sensing the biomedical signal as given in [12].…”

Section: Introductionmentioning

confidence: 99%

A New Design of Capacitive Power Transfer Based on Hybrid Approach for Biomedical Implantable Device

Mustapa

Saat

Yusmarnita

2019

IJECE

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“…The four-plate parallel structure is the most common way to realize a capacitive coupler [85], and it can also be called a bipolar structure, which includes two pairs of metal plates as shown in Figure 22. It is named because the two pairs of plates are parallel arranged.…”

Section: Four-plate Parallel Structurementioning

confidence: 99%

A Review on the Recent Development of Capacitive Wireless Power Transfer Technology

2017

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Capacitive power transfer (CPT) technology is an effective and important alternative to the conventional inductive power transfer (IPT). It utilizes high-frequency electric fields to transfer electric power, which has three distinguishing advantages: negligible eddy-current loss, relatively low cost and weight, and excellent misalignment performance. In recent years, the power level and efficiency of CPT systems has been significantly improved and has reached the power level suitable for electric vehicle charging applications. This paper reviews the latest developments in CPT technology, focusing on two key technologies: the compensation circuit topology and the capacitive coupler structure. The comparison with the IPT system and some critical issues in practical applications are also discussed. Based on these analyses, the future research direction can be developed and the applications of the CPT technology can be promoted.

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“…However, CPT method suffers from low coupling capacitance problem and thus is not preferred for both research and application at the beginning. Deepak Rozario et.al gave a detailed analysis and design of coupling capacitors for capacitive power transfer [14]. With the improvement of semiconductor technology, wide-bandgap devices like GaN mosfets can realize nearly 100MHz switching frequency with power up to 100W.…”

Section: Introductionmentioning

confidence: 99%

“…However, CPT method suffers from low coupling capacitance problem and thus is not preferred for both research and application at the beginning. Rozario et al [14] gave a detailed analysis and design of coupling capacitors for CPT. With the improvement of semiconductor technology, wide‐band‐gap devices like GaN MOSFETs can realise nearly 100 MHz switching frequency with power up to 100 W. Huang et al [15] researched the autonomous current‐fed push–pull converter and class E converter for megahertz CPT and their difference.…”

Section: Introductionmentioning

confidence: 99%

Hybrid coupler for 6.78 MHz desktop wireless power transfer applications with stable open‐loop gain

Cai

Song

et al. 2019

IET Power Electronics

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Analysis and design of coupling capacitors for contactless capacitive power transfer systems

Cited by 23 publications

References 12 publications

A New Design of Capacitive Power Transfer Based on Hybrid Approach for Biomedical Implantable Device

A New Design of Capacitive Power Transfer Based on Hybrid Approach for Biomedical Implantable Device

A Review on the Recent Development of Capacitive Wireless Power Transfer Technology

Hybrid coupler for 6.78 MHz desktop wireless power transfer applications with stable open‐loop gain

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