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ANN_ingenieur_Hannover_91x277_Mise en page 1 05.03.14 10:01 Page1 THE ORIGINAL MEDICAL PUSH-PULL CONNECTOR SEE US AT STAND D33 - HALLE 12 07-11 APRIL 2014 HANNOVER GERMANY LEMO SA - Switzerland Phone: (+41 21) 695 16 00 info@lemo.com More than 50'000 connector combinations The modular design of LEMO products provides more than 50'000 different combinations of connectors with a large choice of contact configurations: High and low voltage Coaxial and triaxial Quadrax Thermocouple Fibre optic Fluidic and pneumatic Hybrid Custom solutions Cable assembly Contact your local partner on www.lemo.com Wireless charging shift ahead By Jessica Lipsky At least four different approaches to wireless charging are vying to power billions of next-generation mobile devices. Today only one has a beachhead in about a million systems: the Wireless Power Consortium’s Qi inductive charging technology. By 2018, analysts say, the race will be all but over with one player dominating the 700 million systems using wireless charging. Experts expect a technology shift to resonant charging after a generation of hybrid inductive/resonant products currently coming on the market. Before it’s over, Apple is expected to debut what could be a wild-card proprietary approach. Wireless charging “standards have to converge, and I think this year they will figure out this market is not taking off until they get together,” Henry Samueli, the chairman and CTO of Broadcom, said at a company event in December in San Francisco. “It’s about much more than a smartphone market. The main driver is the Internet of Things.” Fig. 1: ConvenientPower’s dual-mode inductive/resonance multi-device charger. (Source: WPC blog) Ryan Sanderson, a wireless charging analyst at IHS, told us the mobile phone and tablet markets will be key to volume adoption of wireless charging in the coming years. IHS forecasts assume that at least one major cellphone manufacturer will integrate wireless power capability throughout its ecosystem by 2016. “Apple is probably not eager to adopt another standard for it. They’ll want to develop their own thing. They have a huge influence, along with Samsung,” IHS analyst Jason dePreaux told us. “It will take those two companies to create a standard, not just saying the standard or joining an alliance, but actually building it in. It’s several years away, though, especially on the Apple side.” Three types of main wireless charging technologies are contenders in the race to mainstream use - magnetic induction, magnetic resonance, and niche solutions such as radio frequency. Though dePreaux said there isn’t much difference in power or charging time among the technologies, an Ars Technica speed test of the Qi (pronounced chee) technology showed that Jessica Lipsky is Associate Editor of EE Times – www.eetimes.com www.electronics-eetimes.com Electronic Engineering Times Europe March 2014 25


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