Wireless power transfer sysytem prototype 2 Sony Develops Highly Efficient Wireless Power Transfer System

Tired of messy power cables connecting all your electrical devices? Sony’s latest innovation, the “Wireless Power Transfer System”, eliminates the need to use power cables and may be the solution everyone has been looking for.

Read more…

Wireless power transfer sysytem prototype 2 Sony Develops Highly Efficient Wireless Power Transfer System

Tired of messy power cables connecting all your electrical devices? Sony’s latest innovation, the “Wireless Power Transfer System”, eliminates the need to use power cables and may be the solution everyone has been looking for.

Sony has  managed to develop a wireless power transfer systemthat delivers a very good level of efficiency, around 60 Watts of power over a distance of 50cm (equivalent efficiency of approximately 80%; approximately 60% including rectifier). The system incorporates a form of contact-less electrical energy transmission technology based on magnetic resonance. With magnetic resonance, “electromagnetic energy is only transferred to recipient devices that share the identical resonant frequencies as the energy source, so energy transfer efficiency is maintained, even when misalignment occurs. Furthermore, even if there are metal objects located between the transmitter and receiver, no heat induction occurs.”

Sony also claims that the transfer distance can be increased, with passive extender units placed between the transmitter and receiver units, without any degradation in efficiency. Based on their research, it was possible to extend the distance from 50cm to 80cm by using extenders – which implies in theory, relatively larger transmitter and receiver units are required over longer distances so that “passive extender units can be used to relay power between small-sized transmitter and receiver units.”

Sony’s Wireless Power Transfer System is certainly an impressive technological feat and if it does take off, truly wireless homes and offices may in time become a reality. Looking forward to the day our television, home entertainment equipments etc are all powered wirelessly from a single source…

“Sony Corporation today announced the development of a highly efficient wireless power transfer system that eliminates the use of power cables from electronic products such as television sets.  Using this system, up to 60 Watts of electrical energy can be transferred over a distance of 50cm (at an efficiency of approximately 80%, approximately 60% including rectifier).”

News via [Sony]