Time to Ditch the Power Adapter,Fujitsu Shows off Wireless Charging System

By November 24th, 2010 AT 11:43 AM

Time to Ditch the Power Adapter Fujitsu Shows off Wireless Charging SystemFujitsu Laboratories Limited 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.

This technology not only promises more compact and more efficient power transmitters and receivers, it also offers the ability to design charging systems in 1/150th the time currently required.

In addition to dramatically shortening development times, this technology paves the way to integrating compact wireless charging functions into mobile phones and enabling multiple portable devices to be charged simultaneously without any restrictions on their position with respect to the charger.

The company unveiled a prototype system at an Institute of Electronics, Information and Communication Engineers conference at Osaka Prefecture University and it claimed that it was first of its kind in the world. Scientists at Fujitsu Laboratories plan to commercially sell products having wireless charging system by 2012.

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.

The new technology has the following characteristics:

1. A magnetic field analysis simulator which analyzes the coil model and a specialized circuit simulator which analyzes the resonance conditions, including the capacitor model, are combined, making it possible to quickly and accurately design wireless charging systems for multiple transmitters and receivers at once using a variety of coil sizes.

2. The design of the wireless charging system can be automated to precisely match the desired resonance requirements, based on an assessment function which maximizes the charging efficiency.

Together, these two technologies represent the world’s first practical magnetic resonance design simulator which enables rapid and precise designs for transmitters and receivers according to the desired resonance requirements.

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