Date: 29/06/2010

Murata and TMMS jointly develop field-coupled wireless power transmission system

Murata has teamed up with TMMS to develop a field-coupled wireless power transmission system. This system allows the device to be charged simply by placing them on the charger without the aid of power cords.

Murata has utilized TMMS's field-coupled wireless power transmission technology to jointly develop a wireless power transmission system. With the use of this system, devices can be charged without having to be concerned about the location of the charging point.

The field-coupled system is a method that involves positioning electrodes at the power-sending and power-receiving ends and transmitting energy using the electrical fields generated between these electrodes. Since a capacitance is generated between the electrodes, it is also called a capacitive coupling system.

Some features of this wireless power transmission system are:
1. Multiple types of electronic devices can be charged using a single charging stand.
2. Developed using Murata's safety control methods.
3. Only a small amount of heat is generated by the transmission part.
4. Can be incorporated into the devices with the electrode parts serving as the interface to the power transmission.
5. Many different materials such as transparent and flexible resins can be used for the charging stands.

It is suggested for application in cell phones, mobile music players, digital still cameras, notebook PCs and other mobile devices, lighting fixtures, decorations, housing equipment and other related products.

Part Number

LXWSseries

Electrical Characteristics

Transmitted power 1~10W
Transmitting efficiency More than 90% by wireless transmission part alone

External Size

Power-sending module: 50 x 25 x10 mm (target size for 3W models)
Power-receiving module: 10 x 10 x 1.5 mm (target size for 3W models)

Production

Start of mass production targeted for 2011
Monthly production to start with 10,000 units

Price
Mass production target price of 980 yen for power-sending module and power-receiving module together for orders received when the monthly production runs to 100,000 units

To know more visit: www.tmms.co.jp