2016 IEEE Wireless Power Transfer Conference (WPTC)最新文献

Standby power reduction method for wireless power transfer system with parallel resonance type resonator 一种并联谐振式谐振器无线电力传输系统的待机功率降低方法

2016 IEEE Wireless Power Transfer Conference (WPTC) Pub Date : 2016-05-05 DOI: 10.1109/WPT.2016.7498814

Byoung-Hee Lee, Yeon-woo Choi, Bong-chul Kim

引用次数: 3

EMI reduction in wireless power transfer system using spread spectrum frequency dithering 扩频频抖动在无线电力传输系统中的电磁干扰抑制

2016 IEEE Wireless Power Transfer Conference (WPTC) Pub Date : 2016-05-05 DOI: 10.1109/WPT.2016.7498855

Hongseok Kim, Jonghoon J. Kim, Seungtaek Jeong, Seongsoo Lee, Yeonje Cho, Dong-Hyun Kim, Joungho Kim

引用次数: 11

PCB-package to chip wireless power transfer scheme using magnetic-field resonance coupling for high-density 3-D IC 高密度三维集成电路中采用磁场共振耦合的pcb封装到芯片的无线电力传输方案

2016 IEEE Wireless Power Transfer Conference (WPTC) Pub Date : 2016-05-05 DOI: 10.1109/WPT.2016.7498762

Jinwook Song, Seungtaek Jeong, Shinyoung Park, Jonghoon J. Kim, Yeonje Cho, Joungho Kim

{"title":"PCB-package to chip wireless power transfer scheme using magnetic-field resonance coupling for high-density 3-D IC","authors":"Jinwook Song, Seungtaek Jeong, Shinyoung Park, Jonghoon J. Kim, Yeonje Cho, Joungho Kim","doi":"10.1109/WPT.2016.7498762","DOIUrl":"https://doi.org/10.1109/WPT.2016.7498762","url":null,"abstract":"In this paper, we propose and demonstrate a chip-level wireless power transfer (WPT) interconnection scheme to reduce power supply interconnections for high-density 3-dimensional integrated circuits (3-D ICs). We fabricated an active chip to design a receiver coil, full-bridge rectifier and DC/DC converter to get DC power from wirelessly delivered AC power from a printed circuit board (PCB) package using the 0.18 μm SK-Hynix CMOS process. The fabricated chip is attached on the transmitter PCB-package with coil-to-coil center alignment for experimental demonstration. An equivalent circuit model of the proposed chip-level WPT interconnection scheme is suggested with analytic equations, and voltage transfer ratio and power transfer efficiency are estimated from the model. The proposed model is verified by comparing Z-parameter results obtained from 3-D EM simulation and measurement of the fabricated test vehicle from 10 MHz to 5 GHz. The voltage transfer ratio and power transfer efficiency of the designed package-to-chip WPT including a 3.3 ohm source resistance is able to reach 0.76 V/V and 34 %, respectively.","PeriodicalId":113182,"journal":{"name":"2016 IEEE Wireless Power Transfer Conference (WPTC)","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122926955","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Inductive power transmission using multiple concatenated parallel-line-feeder segments 使用多个串联并联馈线段的感应电力传输

2016 IEEE Wireless Power Transfer Conference (WPTC) Pub Date : 2016-05-05 DOI: 10.1109/WPT.2016.7498803

Quang-Thang Duong, M. Okada

引用次数: 3

Maximizing DC power in WPT using a transient transmit array antenna 使用瞬态发射阵列天线最大化WPT中的直流功率

2016 IEEE Wireless Power Transfer Conference (WPTC) Pub Date : 2016-05-05 DOI: 10.1109/WPT.2016.7498772

H. Visser

引用次数: 5

Lateral misalignment tolerance enhancement by using electromagnet based flux gate in wireless power transfer systems 利用电磁铁磁通门增强无线电力传输系统的横向纠偏容忍度

2016 IEEE Wireless Power Transfer Conference (WPTC) Pub Date : 2016-05-05 DOI: 10.1109/WPT.2016.7498850

Jaehyoung Park, K. Hwang, D. Kim, Seungyoung Ahn

引用次数: 1

Electric field breakdown in Wireless Power Transfer systems due to ferrite dielectric polarizability 无线电力传输系统中由于铁氧体介电极化引起的电场击穿

2016 IEEE Wireless Power Transfer Conference (WPTC) Pub Date : 2016-05-05 DOI: 10.1109/WPT.2016.7498761

J. Mclean, R. Sutton

{"title":"Electric field breakdown in Wireless Power Transfer systems due to ferrite dielectric polarizability","authors":"J. Mclean, R. Sutton","doi":"10.1109/WPT.2016.7498761","DOIUrl":"https://doi.org/10.1109/WPT.2016.7498761","url":null,"abstract":"Magnetic Field Wireless Power Transfer (MF-WPT) systems typically employ ferrite cores in order to improve magnetic coupling and minimize the extraneous field. The size of the couplers and hence the ferrite cores for an MF-WPT system are determined to a large part by the separation. The shape of the core is important in minimizing the extraneous magnetic flux. However, large, custom ferrite parts are expensive. Moreover, large monolithic pieces of ferrite are quite prone to breakage and thus not very suitable to a vehicular environment. Thus, it can be advantageous to employ a multi-piece ferrite core consisting of simple standardized shapes. The use of smaller ferrite cores separated by air gaps also mitigates dimensional resonances. Mn-Zn ferrite provides high permeability and high saturation flux density but intrinsically exhibits very large dielectric polarizability. The dielectric behavior of the ferrite tends to guide electric flux lines such that the normal flux is continuous across a dielectric boundary. The electric field of an MF-WPT system can be decomposed into conservative (irrotational) and solenoidal (divergenceless) components. The conservative electric field is contrasted with the solenoidal electric field predicted by Faraday's law and can be thought of as arising from the voltage drop across the windings. Typically, the conservative component of the electric field is much greater in magnitude than is the solenoidal component. If the permittivity is sufficiently large and an air gap exists which is normal to the natural direction of the conservative electric field, nearly the entire terminal voltage will appear across the air gap resulting in very intense electric field in the gap. If the terminal voltage is large and the air gaps are sufficiently small the field intensity can exceed breakdown levels. Even with dielectric material in the air gap, partial discharge is possible over time. Discussion on the mitigation of this effect is provided.","PeriodicalId":113182,"journal":{"name":"2016 IEEE Wireless Power Transfer Conference (WPTC)","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123609661","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 9

A novel multi-coil magnetically-coupled resonance array for wireless power transfer system 一种用于无线电力传输系统的新型多线圈磁耦合谐振阵列

2016 IEEE Wireless Power Transfer Conference (WPTC) Pub Date : 2016-05-05 DOI: 10.1109/WPT.2016.7498868

Zhu Liu, Z. Chen, Yilun Guo, Yiqiang Yu

引用次数: 11

A high-voltage compliant neural stimulator with HF wireless power and UHF backscatter communication 一种具有高频无线电源和超高频反向散射通信的高压柔性神经刺激器

2016 IEEE Wireless Power Transfer Conference (WPTC) Pub Date : 2016-05-05 DOI: 10.1109/WPT.2016.7498826

V. Ranganathan, Brody J. Mahoney, E. Pepin, M. Sunshine, C. Moritz, J. Rudell, Joshua R. Smith

{"title":"A high-voltage compliant neural stimulator with HF wireless power and UHF backscatter communication","authors":"V. Ranganathan, Brody J. Mahoney, E. Pepin, M. Sunshine, C. Moritz, J. Rudell, Joshua R. Smith","doi":"10.1109/WPT.2016.7498826","DOIUrl":"https://doi.org/10.1109/WPT.2016.7498826","url":null,"abstract":"A dual-band wireless neural stimulation device with high frequency (HF) wireless power transfer (WPT) at 13.56MHz and ultra high frequency (UHF) backscatter communication (BSC) at 915MHz is presented. Neural interfaces hold great promise in the development of future treatment/therapy for debilitating neurological disorders, spinal cord damage, and loss of limb function. Most state-of-the-art wireless neural interfaces use either HF or UHF for both WPT and communication, with UHF used in low power systems (neural recording systems) and HF in high power systems (neuromodulation systems). In contrast, this work demonstrates the efficient use of two separate frequencies for WPT and communication, with negligible interference between the two. The higher signal strength of received power using HF WPT enables the implementation of high-voltage (HV) electrical stimulation which is critical (and typically battery-powered) for treatment-oriented neuromodulation devices. Simultaneously, BSC provides improved bi-directional communication data-rates and reduced power consumption, compared to typical active radios. The wireless stimulator has been implemented on a printed circuit board (PCB) using custom and off-the-shelf discrete parts. Measurements are provided demonstrating the efficiency of simultaneously operating WPT and BSC interfaces. The results of in vivo measurements (anesthetized rat) demonstrating the efficacy of the wirelessly-powered stimulator are also provided.","PeriodicalId":113182,"journal":{"name":"2016 IEEE Wireless Power Transfer Conference (WPTC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129991760","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 6

Wireless power transfer for in-vehicle contact-less power line communication systems 车载非接触式电力线通信系统的无线电力传输

2016 IEEE Wireless Power Transfer Conference (WPTC) Pub Date : 2016-05-05 DOI: 10.1109/WPT.2016.7498840

Tetsuya Kusumoto, Yoshikazu Furuta

引用次数: 2