Add to Google
eCoupled's Wireless Power eCoupled's Wireless Power
Tuesday, January 29, 2008 - Sarah Gingichashvili
Home >> News >> General Technology
  Peralink
The U.S. based company “Fulton Innovation” has developed a technology that enables wirelessly charging electrical devices. The company demonstrated a series of products powered by “eCoupled Intelligent Wireless Power” at the 2008 Consumer Electronics Show (CES) in Las-Vegas. The engineers behind “eCoupled” say that the technology, which has been under development for the past ten years, enables low-cost and efficient wireless energy supply, which can be utilized “anywhere traditional power needs exist”.

 eCoupled's vision of the wireless office (Credit: eCoupled)
eCoupled's vision of the wireless office
(Credit: eCoupled)
eCoupled relies on a well known principle of physics called “inductive coupling” – a process in which energy is transferred from one circuit component to another through a shared magnetic field. This kind of power transmission isn’t limited to physically connected devices, since the change in the current flow of one device is caused by the influence of the other device on the magnetic field between them. Fulton’s technology consists of an inductively coupled power circuit that dynamically seeks resonance, continuously communicating with a primary supply circuit, which monitors each device within its control range and supplies it with the determined optimal amount of power to keep it at peak efficiency. 

The scientists say eCoupled overcomes the limitations of spatial rigidity, static loads and unacceptable power losses often associated with wireless systems, intelligently adapting to multiple loads – from milliwatts to kilowatts, reportedly reaching energy transfer efficiencies of approximately 98%.  At the CES, the company demonstrated the wireless transmission of 1.4 kilowatts, which is the maximum power transfer achieved by eCoupled to date. The technology is currently limited to a distance of about 2 centimeters, over which power can be transmitted without interfering with other short-range signals. 

At the company’s booth at the CES, eCoupled was demonstrated on a variety of devices. Fulton showed how a small cradle with embedded eCoupled technology could wirelessly charge any electrical device that was placed in it, such as a cell phone, PDA, MP3 player, etc. A similar device lighted up a variety of light bulbs, from the traditional incandescent bulbs to halogen, fluorescent and neon bulbs. The company also showed off its “smart” tabletop, which was embedded with eCoupled technology and was able to supply power to about anything that was put on its surface - from heating up kettles and frying pans to charging laptops and lighting up light bulbs by selectively transmitting the exact amount of electricity required by each of these devices. “We envision that this becomes ubiquitous and the standard for providing power wirelessly in a whole variety of portable and not so portable devices” – said Dave Hazlett, Director of Business Development at Fulton Innovations.    

 eCoupled's technology in action in a car (Credit: eCoupled)
eCoupled's technology in
action in a car (Credit: eCoupled)
One of the core issues the company focused on during the development stage was the safety of such wireless communications. Fulton has developed a unique identification protocol, which has the ability to authenticate any eCoupled-enabled device within its range. If the “base station” does not immediately recognize the component, it won’t supply it with power. The base station can also determine whether a certain device requires power at all – for example, if a given component is fully charged, the primary power supply will stop the energy transfer. 

According to Fulton, eCoupled can be applied to all products that require electric power. In fact, this technology has already been used in Alticor’s eSpring water purification systems, which use ultraviolet light technology to remove contaminants and destroy bacteria and viruses that reside in tap water. eCoupled technology helped eSpring engineers solve some of the challenges they faced at the time, including the unwanted heating of the water, caused by the ultraviolet lamp. The technology allowed for high-powered wireless energy transfer to the lamp, reducing energy consumption and ambient heat.  

Fulton is currently working on a technology that will allow the base station to be incorporated inside a desktop, so that eCoupled-connected devices could be charged simply by being placed over certain spots. 

TFOT previously covered other wireless power transmission technologies, such as the wireless charging pad invented by "WildCharge", and a wireless power transmission method that was developed by MIT scientists. Using this method, the scientists succeeded to light a 60 watt light bulb wirelessly from a distance of about 2 meters. You can also check out the levitating wirelessly-powered light bulb presented this year at the Sonar Exhibition in Barcelona by artist Jeff Lieberman from Cambridge, Massachusetts

More on eCoupled's technology can be found on Fulton Innovation's official website. You can see several video demonstrations of eCoupled's technology on the following links: video 1, video 2, video 3.


Related News Beware the Dim Laser Pointer Beware the Dim Laser Pointer Mantis Vision - Portable Scanning in 3D Mantis Vision - Portable Scanning in 3D

Related Pictures Humanscale’s Horizon LED Flat Light Humanscale’s Horizon LED Flat Light ReacTable – A Singing Table ReacTable – A Singing Table

Related Articles CES 2008 Innovations Coverage CES 2008 Innovations Coverage 2008 In Technology 2008 In Technology



Comments & Replies (5)
Uhm - So you did what exactly?   (12/10/08 - 21:23 - by J)
So - this company achieved 98% efficiency rating - that's pretty
cool... Why do they say they've solved the limitations of distance if
they're stuck on the short range of 2 centimeters?
regarding witricity   (12/24/08 - 3:04 - by fighter)
hello....I am an electrical engg. student doing BTech ...I am really
impresed by the new technology coming up known as witricity.I wish to
contribute something in this field and I am working on it.I just
needed your help.If you could kindly give me all the details regarding
the resonance condition to light a 60 watt bulb from a considerable
distance , I would be grateful to you.This information would help me
carry out my further calculation..If you wish to help me kindly mail
me at bandishshah.20989@gmail.com.
WiTricity   (07/08/09 - 14:58 - by Jamey)
WiTricity is a different technology from this and allows for distances
as large as 1/4 wavelength. For a 60cm diameter coil, this is about
3m range. But it is only up to about 75% efficient. Still more than
enough to revolutionize automobiles though. Imagine a highway that
charges your car as you drive so that batteries are only needed much
for short-range, off highway travel, allowing for much smaller
batteries. Wireless power like would probably ultimately be more
efficient than petrol, hydrogen, and probably even large batteries
charged at home and at parking garages.
WITRICITY   (02/03/10 - 19:58 - by MANOHAR)
I was looking forward for this to happen..am really really intrested
it this project.I would like to contribute my work regarding this
project...can u plz send me details regarding this project at
agnirock2007@gmail.com
THORIZON999@163.COM   (06/21/10 - 2:45 - by ASD)
http://sites.google.com/site/luisbeck007/newstoresandevents1

Terms Of Use | Privacy Policy | Contact Us | Advertise With Us | Site Profile
Copyright © 2011 The Future of Things. All rights reserved.
Feedback Form