Everybody knows Induction wireless power transfer, based on coils and magnetic field. Despite all the efforts done by numerous highly qualified engineers this technology will remain limited by the need of the coils and the limit of improvement on their critical characteristics. To be integrated in a device the coils must be very thin but then become very inefficient and expensive.

A video worth a thousand words. Watch below the first application using the capacitive coupling technology to charge wirelessly the well-known iPad.

Few years ago a French Engineer, Mr Henri Bondar, had the idea to return to square one and look at the origin of the problem. Instead of looking at the Magnetic field he looked at Electric field. With the help of his friend Patrick Camurati and after some consolidation work under TMMS he was able to demonstrate a new technolgy capability to TMMS’s Japanese customers.

Under the project code “FLIRT”, wireless energy transfer by capacitive coupling between very thin electrodes (copper foil) with very high positioning freedom and efficiency was demonstarted. Prototypes were made by Mr Bondar and TMMS using standard components demonstrating from 3W and up to 50W with more than 90% efficiency.
This patented technology allows to keep the electronic module where their is space in the device and just place a thin conductive layer in the most convenient area for energy transfer. TMMS partnered with Murata Co Ltd in 2008 to develop and industrialize the module, it was publicly announced the 28th of June 2010. At this occasion were presented several demonstration prototypes including a iPad and iPhone wireless charging casing and stand, a mobile phone wireless charger kit and the charging sheet going with it.

At Tokyo CEATEC Show from 5th to 9th October 2010, Murata boy was showcasing this wireless technology with it’s see through charging stand and a demo kit for professional evaluation. A demo of see through wireless charger integrating Murata module and TMMS technology was also presented at Hosiden booth.

Now TMMS and Murata are working with several companies to bring to the market the first products integrating this technology in Spring 2011. Contact us now !