AUG, 2010 ·
Following the foot step of Sony’s and like, Murata Manufacturing has made an announcement on development of a wireless power transfer technology ,namely field-coupled wireless power transmission system capable of supplying power to devices wirelessly, where the devices can be charged by simply placing them on the charger without any needs for power cords or other physical connections.The filed-coupled system is a wireless power transmission method, where the electrodes are positioned at the power-sending and power-receiving ends, where the energy can be transmitted through the electric filed that has been generated between these electrodes. Due to the fact that capacitance is generated between two electrodes, the system is also called a capacitance coupling system. The system has been developed based on Murata’s circuit design know how and the power transmission technology of TMMS. The new system can be targeted for various applications such as charging of cell phones, mobile music players, digital still cameras, notebook PCs, light fixtures, decorations, etc. Also by incorporating the new charger into an office desk, the desk will turn into a “smart” desk capable of charging notebook PCs, and other such devices. That’s not all, by incorporating the system throughout transportation and accommodation facilities, devices can be charged anywhere without any needs for AC adaptors. The new system comes with transmitted power of 1 to 10 W. Murata is planning a mass production by 2011, with a monthly production of 10,000 units. The target price for pair power-sending and receiving module is 980 JPY. There are 10 patents pending relating to this transmission method
