Yep, wireless coffee is finally reality. Based on an EBV design one of our partners has build a coffeemaker using wireless power transfer to brew fresh treats for you in the morning!
The design is based on the tesla principle or more specifically on magnetic resonance. On the primary side a power source, a resonant controller and a coil are used to send power to the secondary side with power regulator, output and load controller. To make the design smart an embedded comunication system through an electromagnetic field is used to close the regulation loop among primary and secondary side.
The solution is capable of transferring energy of up to 500W; with some adjustments it is possible to achieve up to 3,5KW. Besides the very simple implementation the magnetic resonance principle allows for a high degree of tolerance regarding the mechanical positioning of the primary and secondary coils relatively to each other. The system works under water making it also suitable for applications like pool cleaners. To top of the exciting news: the system delivers efficiency of more than 90%!
No matter where you want to keep your devices – stop worrying about cables!
So what’s the point of this solution? Flexibility! For the already mentioned kitchen appliances the advantages are pretty obvious: no cables for more freedom when storing, using and cleaning appliances. Specifically the last point is very important as no cables mean the devices can be sealed and even be placed in your dishwasher.
For other electronic applications in your home like PCs, TVs, speakers or floor lamps the system creates further freedom when choosing or changing their location. Applications in which the secondary coil is installed on a moving vehicle like a lawn mower or cleaning robot can profit from the additional communication that can be exchanged between the primary coil (e.g. embedded in the power station) and the secondary coil. This feature can be used to “guide” the moving device back to the charging station autonomously. The distance that can be bridged by the communication system is up to 20 meters without the need to add any additional RF radio communication link.
Due to the high-power that can be transferred the system is also suitable for industrial, medical and waterproof applications and can even power small forklifts or charge motorbike battery packs.
To put it into a nutshell wireless power transfer offers possibilities way beyond coffeemakers (even thou coffeemakers are definitely amongst the top ten of cool use cases) and is also relatively easy to implement. For assistance and further information/specs feel free to contact us by clicking here.