Watt-level wireless power transmission to multiple compact receivers

被引：11

作者：

Garraud, A. ^{[1
]}

Munzer, D. J. ^{[1
]}

Althar, M. ^{[1
]}

Garraud, N. ^{[1
]}

Arnold, D. P. ^{[1
]}

机构：

[1] Univ Florida, Dept Elect & Comp Engn, Interdisciplinary Microsyst Grp, Gainesville, FL 32611 USA

来源：

15TH INTERNATIONAL CONFERENCE ON MICRO AND NANOTECHNOLOGY FOR POWER GENERATION AND ENERGY CONVERSION APPLICATIONS (POWERMEMS 2015) | 2015年 / 660卷

关键词：

D O I：

10.1088/1742-6596/660/1/012039

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

This paper reports an electrodynamic wireless power transmission (EWPT) system using a low-frequency (300 Hz) magnetic field to transmit watt-scale power levels to multiple compact receivers. As compared to inductively or resonantly coupled coils, EWPT facilitates transmission to multiple non-interacting receivers with little restriction on their orientation. A single 3.0 cm(3) receiver achieves 1.25 W power transmission with 8 % efficiency at a distance of 1 cm (350 mW/cm(3) power density) from the transmitter. The same prototype achieves 9 mW at a distance of 9 cm. Moreover, we demonstrate simultaneous recharge of two wearable devices, using two receivers located in arbitrary positions and orientations.

引用

页数：5

共 12 条

[1]

[Anonymous], 2010, IEEE Standard for Safety Levels with Respect to Human Exposure to Radio Frequency Electromagnetic Fields, 3 kHz to 300 GHz Amendment 1: Specifies Ceiling Limits for Induced and Contact Current, Clarifies Distinctions between Localized Exposure and Spatial Peak Power Density

[2]

[Anonymous], 2002, IEEE STANDARD SAFETY

[3] Wireless power transmission to an electromechanical receiver using low-frequency magnetic fields [J].

Challa, Vinod R. ;

Mur-Miranda, Jose Oscar ;

Arnold, David P. .

SMART MATERIALS AND STRUCTURES, 2012, 21 (11)

[4]

Chapman StephenJ., 2002, ELECT MACHINERY POWE

[5] Electrodynamic Wireless Power Transmission to Rotating Magnet Receivers [J].

Garraud, A. ;

Jimenez, J. D. ;

Garraud, N. ;

Arnold, D. P. .

14TH INTERNATIONAL CONFERENCE ON MICRO AND NANOTECHNOLOGY FOR POWER GENERATION AND ENERGY CONVERSION APPLICATIONS (POWERMEMS 2014), 2014, 557

[6]

Kim JD, 2014, 2014 IEEE WIRELESS POWER TRANSFER CONFERENCE (WPTC), P166, DOI 10.1109/WPT.2014.6839592

[7] Wireless power transfer via strongly coupled magnetic resonances [J].

Kurs, Andre ;

Karalis, Aristeidis ;

Moffatt, Robert ;

Joannopoulos, J. D. ;

Fisher, Peter ;

Soljacic, Marin .

SCIENCE, 2007, 317 (5834) :83-86

[8] Electrodynamic wireless power transmission to a torsional receiver [J].

McEachern, K. M. ;

Arnold, D. P. .

13TH INTERNATIONAL CONFERENCE ON MICRO AND NANOTECHNOLOGY FOR POWER GENERATION AND ENERGY CONVERSION APPLICATIONS (POWERMEMS 2013), 2013, 476

[9] Overview of wireless power transfer technologies for electric vehicle battery charging [J].

Musavi, Fariborz ;

Eberle, Wilson .

IET POWER ELECTRONICS, 2014, 7 (01) :60-66

[10] Special Issue on Wireless Power Transfer [J].

Rim, Chun T. ;

Mi, Chunting Chris .

IEEE TRANSACTIONS ON POWER ELECTRONICS, 2015, 30 (11) :6015-6016

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