Researchers demonstrate wireless power, charge devices from across the room


Even if you do not own one, you probably know what a wireless charging device is. Place your device on an inductive plate and the battery starts taking a charge. A group of talented scientists at the Korea Advanced Institute of Science and Technology demonstrated a system that can not only charge one mobile phone from up to 15 feet away, but 40 mobile phones simultaneously.

The technology, called Dipole Coil Resonant System (DCRS), uses magnetic fields which are capable of also providing power to larger appliances like televisions and laptop computers. DCRS is an evolution of technology that was worked on at MIT in 2007, called Couple Magnetic Resonance System (CMRS).

The difference is that the Korean researchers say they have achieved longer range and that their design is more efficient. The research team lead, Chun Rim, wants to see wireless power as common as Wi-Fi hotspots, “Just like we see Wi-Fi zones everywhere today, we will eventually have many Wi-Power zones at such places as restaurants and streets that provide electric power wireless to electronic devices.”

With DCRS, it is possible to power a large LED TV along with 3 40-watt fans over a 5 meter distance. The maximum power output at 3 meters is roughly 1,400 watts. Efficiency diminishes over longer distances though.  Still, at 5 meters, with outputs as high as 209 watts at 20kHz, DCRS can push enough power to charge 40 mobile phones at once.

There are a number of areas that need continued study before we see commercial applications to this technology. First, such an environment pretty much means that anyone with a credit card is going to have said cards erased every time they enter the room. Also, with the amount of power being transmitted as electromagnetic waves across a given space, there is no data as to what impact, if any, such energy would have on people, and pets, big and small.

We have to tip our hat to the idea though, keeping our phone charged simply by being in the room sounds pretty convenient, not to mention adios to wires tangling things up everywhere.



sources: EurekAlert via GigaOM

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16 Comments

1. SuperMaoriBro

Posts: 533; Member since: Jun 23, 2012

I already keep my phone in my front pocket close to my nuts, that's about as much radiation I'm willing to expose them to. this tech, although very appealing, also sounds like it has the potential to do even more harm to them.

2. quakan

Posts: 1418; Member since: Mar 02, 2011

Thumbs up because you literally made me lol.

4. Finalflash

Posts: 4063; Member since: Jul 23, 2013

Well, small price to pay for always charged devices and possibly free birth control. Worst case scenario I have to wear a chain link armor around by balls but really, that can only help in the summer and winter.

5. 0xFFFF

Posts: 3806; Member since: Apr 16, 2014

Look at the bright side -- you might be able to have some transformers as kids with this new tech.

3. Napalm_3nema

Posts: 2236; Member since: Jun 14, 2013

Nicola Tesla is yawning in his grave.

6. Brosepower

Posts: 35; Member since: Apr 21, 2014

Finally someone knows who and what Nicola Tesla did. One of the very few that I have seen that recognizes that Tesla was dozens if not hundreds of years ahead of his time.

7. 0xFFFF

Posts: 3806; Member since: Apr 16, 2014

Tesla was a visionary scientist. Who was crushed because his ideas upset the status quo. I don't think we'd have this huge dependence on batteries if Tesla's work had been supported instead of condemned.

10. Napalm_3nema

Posts: 2236; Member since: Jun 14, 2013

Thank the esteemed Mr. Edison,

14. marbovo

Posts: 658; Member since: May 16, 2013

Thats why my son is called Nicolas... lol(true)

16. Nikolas.Oliver

Posts: 1574; Member since: Jul 01, 2012

Did somebody just mention my name

8. PBXtech

Posts: 1032; Member since: Oct 21, 2013

Was thinking that too. Tesla was the architect of the 21st century.

11. JC557

Posts: 1919; Member since: Dec 07, 2011

I wonder how advanced we would be if more of Tesla's ideas came to fruition during his lifetime.

12. PBXtech

Posts: 1032; Member since: Oct 21, 2013

Some of his inventions were scary, he had a lot of technology with military implications. Between Tesla and Howard Hughes, a lot of advancements were made that we use today. Supposedly the government raided his offices after his death. I wonder what was in the notes they collected.

13. jroc74

Posts: 6023; Member since: Dec 30, 2010

The only flashlight apps I use are made by TeslaCoil Software. For some reason they are the least buggy of the few I tried. Looking at their catalog...I use most of their apps on my Android phone. I wonder do they have a connection to Nicola.

9. tedkord

Posts: 17357; Member since: Jun 17, 2009

Pfffft. Korea copying again. MIT should sue them for infringing their patent on charging anything with electricity. Do you see now how its possible to innovate on top of other innovation, and how silly, overbroad patents stifle innovation?

15. kylehudsons

Posts: 53; Member since: Apr 04, 2012

Well, as expected of KAIST... top uni in Korea....

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