Image via Wikipedia: Faradays induction experiment
This will be a significant step forward but if only I could also charge my laptop wirelessly as well………
From Asahi News:
Kawasaki, Japan, September 13, 2010 — Fujitsu Laboratories Limited today announced the development of wireless recharging technology that enables the design of magnetic resonance-based wireless charging systems that can simultaneously recharge various types of portable electronic devices. Details of this technology are being presented at the 2010 conference of the Institute of Electronics, Information and Communication Engineers (IEICE), opening September 14 at Osaka Prefecture University.
Electromagnetic induction and magnetic resonance are the methods most often used for wireless charging. With electromagnetic induction, a magnetic flux is induced between the power-transmitting and power-receiving coils, and operates based on electromotive force. This method has been used in cordless phones, among other equipment. The drawbacks are that the method only works over short distances, and the power transmitter and power receiver need to be in alignment, so it is effectively no different than using a charging station with a wired connection. By contrast, the magnetic resonance method, which was first proposed in 2006, uses a coil and capacitor as a resonator, transmitting electricity through the magnetic resonance between the power transmitter and power receiver. This method can transmit electricity over a range of up to several meters, and because a single transmitter can power multiple receiving devices, developments are under way for a broad range of potential applications, charging everything from portable electronics to electric cars.
What Fujitsu Laboratories has done is to develop technology that dramatically shortens the time required to design transmitters and receivers for magnetic resonance charging systems and, in addition, enables accurate tuning of resonant conditions in the design phase, even for compact transmitters and receivers that are prone to influences from nearby metallic and magnetic objects.
Fujitsu plans to continue using this analysis and design technology in research and development on wireless charging systems for mobile phones and other portable devices, and plans to bring products using it to market in 2012. The company is also looking at applying the results of this work to fields other than portable electronics, including power transmission between circuit boards or computer chips, and providing mobile charging systems for electric cars.
Tags: Electronics, Fujitsu, magnetic resonance charging, Research and development, wireless charging
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