Scientists have created an efficient system for transmitting energy at a distance. It allows you to charge electronic devices regardless of the distance between the device and its power source. This is stated in a study by scientists from Stanford University, published in the journal Nature Electronics.
Modern methods of wireless charging of electronic devices technology only work if the general parameters of the system are tuned to a certain transmission distance.
This has some limitations: for effective charging, the device needs to be constantly at a certain distance from the power source.
The natural frequency of the system is the frequency at which the system performs well and which facilitates efficient transmission of power to the device. In the system developed by the researchers, this oscillation frequency independently adjusts to changing conditions, which can be the movement of the device receiving the energy on a scale of less than a millisecond. Thus, the system maintains efficient transmission even when the device is in rapid motion.
In addition, the system allows you to charge your device almost no matter how far from the power source. During testing, it was able to steadily transmit 10 watts of power to a battery that was between 0 and 65 cm and moved at a constant speed.