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Posts with tag wirelesspower

Mojo Mobility's induction charging tech: best thing to happen to discs since Tron

Mojo Mobility's induction charging tech: we haven't been this excited about discs since TronWe are absolutely, completely ready for wireless induction charging to make it big. Have you seen our gadget charging station? It's like some Lovecraftian nightmare; our latest intern went over to plug in his BlackBerry two days ago and we haven't seen him since. For years we've been getting teased with limited, proprietary solutions (mostly for sweaty videogame controllers) but we seem to be firmly and disappointingly locked in the competing standards phase. While we hate to see yet another contestant enter the fray, Mojo Mobility Inc. might just have a winner with its Near Field Power technique, relying on thin, inexpensive coiled discs to both send and receive up to 4 watts of power with 70 percent efficiency. Unlike the competition no exposed contacts are required, and while it looks like you'll still need to place the device onto a charging pad, with multiple transmission discs that pad could charge all your gadgets at once. Mojo plans to supply the receiving discs to battery and device manufacturers in the near future, and to that we can only say hurry up. Think of the interns!

Researchers create wirelessly-powered robot swarm


Wireless power has come a long way from Nikola Tesla's early ruminations on the matter, and it looks like some researchers from Duke and Georgia Tech are now taking the idea to its logical, robot-powering conclusion. While their setup (thankfully) isn't yet able to power robots beyond the confines of the Q L-C resonator-equipped table, it does appear to work remarkably well in that limited proof-of-concept, with five bots each equipped with a non-resonant pickup coil able to follow a path around the table, or simply sit still to recharge their batteries. They were even able to power an LED light with the system for good measure. Natually, they eventually hope to expand the system to power larger swarms of robots and do away with the need for batteries altogether. Yeah, that's a good idea. Head on past the break for a video.

Intel demos a wireless power broadcasting system, villagers terrified


We've seen a number of wireless power systems come and go, but for all the hype-filled bombast and occasional working demo, the tech just hasn't gone anywhere -- but even with that background, Intel's demo of a wireless power system that can broadcast 60 watts of power up to three feet at IDF with 75 percent efficiency has us giddy with excitement. The system works using essentially the same magnetic induction principle as all the others, but Intel's seems the furthest along, and the company hopes to one day be able to charge laptops with it. Yeah, we'll take three.

Read - NYT article
Read - Pictures from the presentation

Powermat promises wireless power for the masses, delivers nothing


We've seen quite a few induction-based "wireless power" systems make the scene, and while the idea is interesting both in theory and prototype, actually getting it to market has proven to be quite difficult, with some casualties along the way. That's why we're a little wary of new claims by Israel's Powermat, Ltd. that it's ready to go with tech that'll turn "any surface" into a power source. Well, that, and the PR image they sent us has the iPod charging screen Photoshopped onto every device pictured, including a first-gen RAZR and an N95. Oh, and they claim that embedding PowerMat in sheetrock eliminates the need for outlets entirely, but we're not at all sure how that's supposed to work -- do you have to hold your devices against the wall all night? Add to that the interesting claims that Powermat's tech delivers energy in "real time," and that it "completely eliminates the potential for electrical fires," and we're in full put-up-or-shut-up mode over here. Think you can top the wireless hamburger, Powermat?

Wirelessly powered Christmas tree: when high-tech meets high-chintz


We're pretty certain we were supposed to be seeing cellphones, DAPs, and medical devices -- you know, gadgets -- rock the PowerCast wireless power system by now, but it looks like the first product off the line to include the tech is this chintzy $395 Christmas tree from Frontgate. The fake tree does indeed feature wireless power for its LED lights, but honestly, if you're moving your tree so much you need it to be wireless, you should really think about getting out of your house more often.

[Thanks, Joe]

Seiko Epson, Murata team up on contactless quick charger

Not even a week after startup WiPower boasted about its breakthrough in wireless power, Murata and Seiko Epson have announced plans to "jointly development a non-contact quick charging system." Reportedly, the technology "leverages electromagnetic induction," and both the charging stand and a given mobile device would be "respectively equipped with coils that generate power." As for the production, it sounds like Seiko Epson will hone in on the "transmitting side, or primary side," while Murata "will be involved in the production of the rechargeable Li-ion." The overriding goal is to recharge a handset "in about 10 to 15 minutes in a non-contact manner," which would purportedly push power transmission efficiency from current levels of 30- to 50-percent to nearly 70-percent. Oh, and we've already been assured that these "will not generate heat."

WiPower touts breakthrough in wireless power


While it's far from the first to claim that wireless power is just around the corner, upstart WiPower looks to at least have some numbers to back up its boasting, and it also has the University of Florida in its corner. According to the two, their system not "approaches commercialization," but actually "exceeds the efficiency of most corded chargers." More specifically, they say that, "in a laboratory environment," their system achieves an efficiency of about 68%, a number they think could eventually reach 80%. That's opposed to the median efficiency of 58% found in many corded power supplies today, some of which drop as low as 16%, according to WiPower. While the company isn't quite ready to say exactly how close to commercialization the technology is, it apparently plans up the ante significantly within the next few months, when it says it'll "leapfrog" the competition by demonstrating the system charging a laptop computer.

Loews Regency Hotel gets outfitted with Powermat wireless power

The wireless power business sure seems to be getting crowded these days, with upstart Powermat Ltd. only the latest company promising to free your gadgets from yet another cord. Unlike some similar products, however, Powermat's system looks to actually be ready to charge your devices, with the Loews Regency Hotel Business Center in New York City the first to put it to use. While the company eventually sees its technology being directly integrated into various electronic devices (like every other company), in the meantime you simply hook your device up to a so-called "puck," which in turn wirelessly picks up the signals from the power mat it's placed on. No word on when you'll be able to get a Powermat for yourself, but the company does say the system will be "inexpensive."

Breath powered USB generator does charging on the go


Hey, we're tired of waiting for wireless charging solutions to actually hit the market just as much as the next guy (or gal), but one inventive soul took that frustration out on a swank DIY project that elicits energy from simply breathing. We've seen the use of hot air in powering gadgets before, but this homegrown USB charger was assembled by simply using "parts scavenged from an old CD-ROM drive, a basic electronic circuit, and a few rubber bands." The chest-worn device was intended to output around one-watt for charging a cellphone, which could purportedly juice it up in just under three hours, but unfortunately for us all, this seemingly brilliant device only mustered about 50mW of energy. Of course, that's still getting somewhere, but we're not exactly keen on wearing this thing around for an entire day in order to add a few battery bars to our mobile. Nevertheless, the creator doesn't look to be giving up on it so soon, and hopefully v2 will allow our breath to add new life to our lappies or electric cars, eh?

[Via Slashgear]

Powercast looking to bring wireless power to reality

We know, energy without wires has always seemed like one of those novel concepts that sounds terrific in theory, but remains a tad difficult to imagine hitting the commercial scene for some time to come. Apparently, all that is about to become nonsense, as a Pennsylvania-based startup is set to capture the wireless-loving hearts of, um, everyone when it tackles contactless power products. Powercast has already "signed nondisclosure agreements to develop products with more than 100 companies (Philips, for instance), including major manufacturers of cellphones, MP3 players, automotive parts, temperature sensors, hearing aids, and medical implants." The firm's radio-wave-receiving miracle device trumps existing attempts by "adjusting to variations in load and field strength while maintaining a constant DC voltage," essentially ensuring that only low wattages (read: the stuff that garners FCC admiration) are flung around. The system basically consists of two parts -- a wall-plug transmitter and a "dime-sized receiver" that handles the real magic -- and energy is instantly transmitted whenever that disc comes within a yard or so of its tag-team partner. Incredibly, the receiver only costs "about $5" to produce, yet the outfit has already secured upwards of $10 million in private funding, which translates into one less American that desperately needs to win the lottery. Get ready folks, if all goes well, Powercast will be shipping "many millions of units" by the end of 2008 -- and maybe even sooner.

[Via TWW]

eCoupled Intelligent Wireless Power debuting at CES next month

Looks like Fulton Innovation is getting ready to introduce a new system called "eCoupled" at CES next month that uses inductive coupling to wirelessly charge gadgets. We've been hearing about wireless charging solutions for gadgets for, well, years now (remember Splashpower?), so we wouldn't be surprised to see 2007 come and go with us charging all of our damn gadgets the old fashioned way, but Fulton has lined up some serious partners, including Visteon, Motorola, Mobility Electronics, and Herman Miller (they make office furniture). Their press release today is a little light on specifics, like when we'll actually be able to buy eCoupled-enabled gadgets, but presumably they're saving all that for CES.

University of Tokyo develops expansive plastic power sheet

It seems this whole "wireless power" phenomenon is just getting warmed up, as we've got yet another creation that promises to rejuvenate our gadgetry without forcing us to hunt for those easy-to-misplace AC adapters. Researchers at the University of Tokyo have demonstrated a prototype which consists of "plastic and flexible electronics" that can wirelessly provide power to "any device that touches its surface." Of course, gadgets would need to be equipped with "a coil and special power-harvesting circuitry" to receive the energy, but it still beats lugging around half a dozen adapters on every outing. While this flexible sheet still relies on electromagnetic induction like the one's that have come before it, this particular rendition features a dual-sheet design that allows it to intelligently divert power to objects touching any part of the sheet, while not wasting energy on parts not being occupied. Takao Someya, professor of engineering, estimates that there's still "about five years" before the sheet will overcome the current "reliability issues," but hopes to one day "power flat-screen panels without ever needing an electrical outlet."

MIT makes case for wireless power

We all know and love our WiFi laptops, 3G and DECT phones, and wireless TVs, keyboards, and mice. Thing is, that freedom is always interrupted by the need to re-tether and juice-up the rechargeables. So someone, somewhere must be seeking the Holy Grail of wireless power right? Oh, you betcha. In fact, Nikola Tesla (of AC power and 80's glam-band fame) was working on his Wardenclyffe Tower for long-range wireless energy transfer back in the 19th century. Now, MIT's Marin Soljacic, Aristeidis Karalis, and John Joannopoulos have outlined a relatively simple (for physicists) system that could deliver power wirelessly by harnessing the properties of resonance. You know, that phenomena which causes a played instrument to vibrate another of the same acoustic resonance or collapse bridges spanning the Tacoma Narrows when its mechanical resonance is exploited by a bit of wind. However, MIT's solution is based on the resonance associated with electromagnetic waves. Notably, they've investigated a special class of non-radiative objects with long-lived resonances that won't scatter energy like radio waves or infrared. When energy is applied to these objects, it remains bound to them allowing, in theory, for a simple copper antenna with a long-lived resonance to transfer energy to say, a laptop antenna resonating at the same frequency up to about 5-meters away -- any unused energy is simply reabsorbed. Hmmm, "reabsorbed" you say, into what? No worries, they haven't built a test system yet and besides, when the robots hear about this we'll have bigger concerns than infertility.

[Thanks, Shig]



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