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docdivakar
Efficiency concerns will certainly make close proximity-based charging solutions ...
t.alex
Waiting for standards..
Wireless charging market is on 85% CAGR
Peter Clarke
8/9/2011 5:55 AM EDT
LONDON – The global market for wireless power components and accessories was $100 million in 2010 but will grow to be worth $4.5 billion, according to market research IMS Research Ltd. That is equivalent to a compound annual growth rate of 85.5 percent.
Palm and Powermat are the pioneers in wireless charging but with incompatible products and being challenged by the Wireless Power Consortium and its Qi standard, the firm said.
IMS (Wellingborough, England) said it expects rivalries to focus around two implementations of wireless power. Powermat and WPC's Qi are in the "tightly coupled" camp that requires close proximity. Qualcomm and Witricity use magnetic resonance to transfer power over greater distances.
"Our forecast assumes that while competition will be fierce in the near term, a combination of market forces and industry alliances will coalesce to form a de facto standard for interoperability in the next several years," said Jason dePreaux, research manager at IMS Research, in a statement.
Related links and articles:
MediaTek goes to startup for charging tech
Wireless Power Consortium adds seven members
An introduction to the Wireless Power Consortium and TI solutions
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iniewski
8/10/2011 10:07 AM EDT
It is amazing that wireless charging market is growing so quickly considering how inefficient the technology is...Kris
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mcardoso
8/10/2011 1:47 PM EDT
depends on what solution you're talking about. efficiency rates vary across the board.
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hm
8/10/2011 2:02 PM EDT
Soon there will be new big players - device manufacturer like Apple, Samsung and chip vendor like TI, Linear and others. It is nice to have more topology for this developing technology. How does wireless charger deals with EMI/EMC issue?
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t.alex
8/14/2011 1:02 AM EDT
Waiting for standards..
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docdivakar
8/24/2011 7:13 PM EDT
Efficiency concerns will certainly make close proximity-based charging solutions (mostly capacitive ones) to be more successful. Inductive close proximity-charging can be equally efficient as long as good alignment is maintained and high permeability materials are used.
Zero voltage switching (ZVS) which can mitigate switching losses and using high Q (greater than 25) components, one can realize 50% efficiency in capacitive charging.
MP Divakar
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