[LINK] Fwd: vip-l: Article: power over the air]

Jan Whitaker jwhit at melbpc.org.au
Wed Apr 11 20:21:00 AEST 2007


>
>http://money.cnn.com/magazines/business2/business2_archive/2007/04/01/8403349/index.htm?postversion=2007033007 
>
>
>
>
>   CNNmoney
>   Powered by
>
>   Death of the cell phone charger
>   A Pennsylvania entrepreneur has developed technology that gives you
>   all the battery juice you need directly from the air. Business 2.0
>   reports.
>   Business 2.0 Magazine
>   By Melanie Haiken, Business 2.0 Magazine
>   March 30 2007: 7:08 AM EDT
>
>   (Business 2.0 Magazine) -- How much money could you make from a
>   technology that replaces electrical wires? A startup called
>   Powercast, along with the more than 100 companies that have inked
>   agreements with it, is about to start finding out. Powercast and its
>   first major partner, electronics giant Philips, are set to launch
>   their first device powered by electricity broadcast through the air.
>
>   It may sound futuristic, but Powercast's platform uses nothing more
>   complex than a radio--and is cheap enough for just about any company
>   to incorporate into a product. A transmitter plugs into the wall,
>   and a dime-size receiver (the real innovation, costing about $5 to
>   make) can be embedded into any low-voltage device. The receiver
>   turns radio waves into DC electricity, recharging the device's
>   battery at a distance of up to 3 feet.
>
>   Picture your cell phone charging up the second you sit down at your
>   desk, and you start to get a sense of the opportunity. How big can
>   it get? "The sky's the limit," says John Shearer, Powercast's
>   founder and CEO. He estimates shipping "many millions of units" by
>   the end of 2008.
>
>   For years, electricity experts said this kind of thing couldn't be
>   done. "If you had asked me seven months ago if this was possible, I
>   would have said, 'Are you dreaming? Have you been smoking
>   something?'" says Govi Rao, vice president and general manager of
>   solid-state lighting at Philips (Charts). "But to see it work is
>   just amazing. It could revolutionize what we know about power."
>
>   So impressed was Rao after witnessing Powercast's demo last summer
>   that he walked away jotting down a list of the industries to which
>   the technology could immediately be applied: lighting, peripherals,
>   all kinds of handheld electronics. Philips partnered with Powercast
>   last July, and their first joint product, a wirelessly powered LED
>   light stick, will hit the market this year. Computer peripherals,
>   such as a wireless keyboard and mouse, will follow in 2008.
>
>   Broadcasting power through the air isn't a new idea. Researchers
>   have experimented with capturing the radiation in radio frequency at
>   high power but had difficulty capturing it at consumer-friendly low
>   power. "You'd have energy bouncing off the walls and arriving in a
>   wide range of voltages," says Zoya Popovic, an electrical
>   engineering professor at the University of Colorado who works on
>   wireless electricity projects for the U.S. military.
>
>   That's where Shearer came in. A former physicist based in
>   Pittsburgh, he and his team spent four years poring over wireless
>   electricity research in a lab hidden behind his family's coffee
>   house. He figured much of the energy bouncing off walls could be
>   captured. All you had to do was build a receiver that could act like
>   a radio tuned to many frequencies at once.
>
>   "I realized we wanted to grab that static and harness it," Shearer
>   says. "It's all energy."
>
>   So the Powercast team set about creating and patenting that
>   receiver. Its tiny but hyperefficient receiving circuits can adjust
>   to variations in load and field strength while maintaining a
>   constant DC voltage. Thanks to the fact that it transmits only safe
>   low wattages, the Powercast system quickly won FCC approval--and $10
>   million from private investors.
>
>   Powercast says it has signed nondisclosure agreements to develop
>   products with more than 100 companies, including major manufacturers
>   of cell phones, MP3 players, automotive parts, temperature sensors,
>   hearing aids, and medical implants.
>
>   The last of those alone could be a multibillion-dollar market:
>   Pacemakers, defibrillators, and the like require surgery to replace
>   dead batteries. But with a built-in Powercast receiver, those
>   batteries could last a lifetime.
>
>   "Everyone's looking to cut that last cord," says Alex Slawsby, a
>   consultant at Innosight who specializes in disruptive innovation.
>   "Think of the billion cell phones sold last year. If you could get
>   Powercast into a small percentage of the high-end models, those
>   would be huge numbers."
>
>   Could Powercast's technology also work for larger devices? Perhaps,
>   but not quite yet. Laptop computers, for example, use more than 10
>   times the wattage of Powercast transmissions.
>
>   But industry trends are on Shearer's side: Thanks to less
>   energy-hungry LCD screens and processors, PC power consumption is
>   slowly diminishing. Within five years, Shearer says, laptops will be
>   down to single-digit wattage--making his revenue potential even more
>   electrifying.
>nsmitter plugs into the wall,
>   and a dime-size receiver (the real innovation, costing about $5 to
>   make) can be embedded into any low-voltage device. The receiver
>   turns radio waves into DC electricity, recharging the device's
>   battery at a distance of up to 3 feet.
>
>   Picture your cell phone charging up the second you sit down at your
>   desk, and you start to get a sense of the opportunity. How big can
>   it get? "The sky's the limit," says John Shearer, Powercast's
>   founder and CEO. He estimates shipping "many millions of units" by
>   the end of 2008.
>
>   For years, electricity experts said this kind of thing couldn't be
>   done. "If you had asked me seven months ago if this was possible, I
>   would have said, 'Are you dreaming? Have you been smoking
>   something?'" says Govi Rao, vice president and general manager of
>   solid-state lighting at Philips (Charts). "But to see it work is
>   just amazing. It could revolutionize what we know about power."
>
>   So impressed was Rao after witnessing Powercast's demo last summer
>   that he walked away jotting down a list of the industries to which
>   the technology could immediately be applied: lighting, peripherals,
>   all kinds of handheld electronics. Philips partnered with Powercast
>   last July, and their first joint product, a wirelessly powered LED
>   light stick, will hit the market this year. Computer peripherals,
>   such as a wireless keyboard and mouse, will follow in 2008.
>
>   Broadcasting power through the air isn't a new idea. Researchers
>   have experimented with capturing the radiation in radio frequency at
>   high power but had difficulty capturing it at consumer-friendly low
>   power. "You'd have energy bouncing off the walls and arriving in a
>   wide range of voltages," says Zoya Popovic, an electrical
>   engineering professor at the University of Colorado who works on
>   wireless electricity projects for the U.S. military.
>
>   That's where Shearer came in. A former physicist based in
>   Pittsburgh, he and his team spent four years poring over wireless
>   electricity research in a lab hidden behind his family's coffee
>   house. He figured much of the energy bouncing off walls could be
>   captured. All you had to do was build a receiver that could act like
>   a radio tuned to many frequencies at once.
>
>   "I realized we wanted to grab that static and harness it," Shearer
>   says. "It's all energy."
>
>   So the Powercast team set about creating and patenting that
>   receiver. Its tiny but hyperefficient receiving circuits can adjust
>   to variations in load and field strength while maintaining a
>   constant DC voltage. Thanks to the fact that it transmits only safe
>   low wattages, the Powercast system quickly won FCC approval--and $10
>   million from private investors.
>
>   Powercast says it has signed nondisclosure agreements to develop

Jan Whitaker
JLWhitaker Associates, Melbourne Victoria
jwhit at janwhitaker.com
business: http://www.janwhitaker.com
personal: http://www.janwhitaker.com/personal/
commentary: http://janwhitaker.com/jansblog/

'Seed planting is often the most important step. Without the seed, 
there is no plant.' - JW, April 2005
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