A Samsung patent has been published online, which describes an interesting small device. This is a wireless charger for
That is, the device does not have a battery like we dogot used to it. Instead, it is equipped with a magnetic disk that moves following the movements of the hand and creates electricity. The device also has a tiny generator. Even more curious is that it uses not only the kinetic energy of movements, but can also transform body heat into electricity.
It should be noted that a small battery is still hereyes - for storing generated electricity. The main advantage of such wireless charging is perhaps that it is a ring. If you pay attention to how you hold the phone, you will notice that the part of your finger where the ring is worn is in contact with the cover opposite the coil.