A Novel Approach for Supplying Wireless Energy to Multiple Devices Simultaneously Using Sweeping Effect

2014 ◽  
pp. 43-58
Author(s):  
Askin Erdem Gundogdu ◽  
Erkan Afacan
Keyword(s):  
Energy Efficiency ◽  
High Efficiency ◽  
Power Transmission ◽  
Transmission Range ◽  
Transfer System ◽  
Wireless Power ◽  
Efficiency Loss ◽  
Novel Approach ◽  
Multiple Devices ◽  
Sweeping Effect

There has been great interest in wireless power transmission since 2007 when a novel approach was presented by a group of scientists at MIT. With this new technique, power transmission range is possible for a couple of meters with high efficiency; however, to be able to use this technique in our lives with high efficiency and long transfer range, small structured devices and new design techniques are strongly required. In this chapter, the investigation on supplying energy by sweeping was presented. The experimental results claim that energy could be supplied to multiple devices almost at the same time. If the range of chosen frequency increases, the number of devices could be increased as well, considering slight energy efficiency loss in the transfer system. The authors hope that the proposed technique gives inspiration to the designers and to the market.

scholarly journals Experimental and Theoretical Realization of Zenneck Wave-based Non-Radiative, Non-Coupled Wireless Power Transmission

2019 ◽  
Author(s):  
Sai Kiran Oruganti ◽  
Jagannath Malik ◽  
Jongwon Lee ◽  
Woojin Park ◽  
Bonyoung Lee ◽  
...  
Keyword(s):  
Surface Plasmons ◽  
Power Transmission ◽  
Electrical Power ◽  
Transfer System ◽  
Wireless Power ◽  
Wireless Power Transmission ◽  
Conducting Surface ◽  
Promising Alternative ◽  
Multiple Loads ◽  
Multiple Devices

A decade ago, non-radiative wireless power transmission re-emerged as a promising alternative to deliver electrical power to devices where a physical wiring proved to be unfeasible. However, existing approaches are neither scalable nor efficient when multiple devices are involved, as they are restricted by factors like coupling and external environments. Zenneck waves are excited at interfaces, like surface plasmons and have the potential to deliver electrical power to devices placed on a conducting surface. Here, we demonstrate, efficient and long range delivery of electrical power by exciting non-radiative waves over metal surfaces to multiple loads. Our modeling and simulation using Maxwell’s equation with proper boundary conditions shows Zenneck type behavior for the excited waves and are in excellent agreement with experimental results. In conclusion, we physically realize a radically different power transfer system, based on a wave, whose existence has been fiercely debated for over a century.

scholarly journals Experimental and Theoretical Realization of Zenneck Wave-based Non-Radiative, Non-Coupled Wireless Power Transmission

2019 ◽  
Author(s):  
Sai Kiran Oruganti ◽  
Jagannath Malik ◽  
Jongwon Lee ◽  
Woojin Park ◽  
Bonyoung Lee ◽  
...  
Keyword(s):  
Modeling And Simulation ◽  
Surface Plasmons ◽  
Power Transmission ◽  
Electrical Power ◽  
Transfer System ◽  
Wireless Power ◽  
Wireless Power Transmission ◽  
Conducting Surface ◽  
Promising Alternative ◽  
Multiple Devices

A decade ago, non-radiative wireless power transmission reemerged a promising alternative to deliver electrical power to devices where a physical wiring proved to be unfeasible. However, conventional coupling-based approaches are neither scalable nor efficient when multiple devices are involved, as they are restricted by factors like coupling and external environments. Zenneck waves are excited at interfaces, like surface plasmons and have the potential to deliver electrical power to devices placed on a conducting surface. Here, we demonstrate, efficient and long range delivery of electrical power by exciting non-radiative waves over metal surfaces to multiple loads.Our modeling and simulation using Maxwells equation with proper boundary conditions shows Zenneck type behavior for the excited waves and are in excellent agreement with experimental results. In conclusion, we physically realize a radically different power transfer system, based on a wave, whose existence has been fiercely debated for over a century.

Sweeping Effect on Witricity

2012 ◽  
Vol 4 (3) ◽  
pp. 54-64 ◽  
Author(s):  
Askin Erdem Gundogdu ◽  
Erkan Afacan
Keyword(s):  
Long Range ◽  
Power Transmission ◽  
Daily Life ◽  
Experimental Results ◽  
New Technique ◽  
Wireless Power ◽  
Daily Lives ◽  
Efficiency Loss ◽  
Wide Range ◽  
Sweeping Effect

Wireless power transmission has become very popular since 2007 and there are many movements to integrate this new technique into our daily lives rapidly. For now, the main drawback in this technology is efficiency in long range. Whenever this challenge is tackled and many devices charging without cables enter daily life, there will be a desire to charge them at the same time without trouble. In this paper, the investigation results of sweeping are presented which seems to be the most appropriate approach for charging many devices at the same time. Experimental results offer that narrow MHz band is suitable for a few devices to supply power whereas a wide range of MHz band gives the opportunity to power up much more devices without remarkable efficiency loss. It is believed that these results will inspire new thoughts and point the way of new designs.

Theoretical Study on the Influence of Transmission Parameters on the Transmission Performance of Magnetic Resonance Wireless Power Transmission Systems

2014 ◽  
Vol 926-930 ◽  
pp. 434-439
Author(s):  
Chang Sheng Li ◽  
Juan Cao ◽  
He Zhang
Keyword(s):  
Magnetic Resonance ◽  
High Efficiency ◽  
Power Transmission ◽  
Maximum Efficiency ◽  
System Quality ◽  
Wireless Power ◽  
Transmission Performance ◽  
Wireless Power Transmission ◽  
Transmission Systems ◽  
Transmission Parameters

Magnetic resonance wireless power transmission technology is based on the phenomenon of resonant coupling to realize non-contact power transmission via near magnetic field. Based on the mutual coupling model of resonance system, the influence laws of system transmission parameters, such as coil coupling coefficients, load resistance, etc., on the transmission performance are theoretically studied in this paper. The research results shows that the power high-efficiency and high-quality transmission does not depend on the large coil loop coupling coefficient and the working frequencies of maximum power and maximum efficiency transmission do not coincide at most condition. Transmission systems with a high resonance frequency can produce high power and efficiency transmission over short distances. In addition, by increasing the coil diameter or wire diameter can improve the system quality factor, and optimize the energy transmission performance.

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