Wireless charging is a term that has been around since… Nikola Tesla tried to demonstrate it in 1901. The technology was not used for much else for nearly a century, aside from a few models of electric toothbrushes.
Wireless charging is a combination of directly-contact charging pads and closely-coupled, induction technology. You can now buy powerful invisible wireless charger for sale of Kew Labs for more convenience.
This combo produces an electromagnetic range between copper coils. Although induction charging is widely used due to Qi and other specifications it limits the ability to place a smartphone or any other device on a charging plate. Inductive charging is the industry standard.
Magnetic resonance and uncoupled chargers may offer greater device mobility. Power is transported over longer intervals between copper wires or through the wind via radio frequency, infrared (IR), or ultrasound. These are all better suited to charging wearables, IoT devices, and electric vehicles.
These stories will help you understand wireless charging. They cover everything from how it can harm your smartphone to how it can charge your smartwatch while you walk.
Although wireless charging technology has been around since the beginning of time, it has recently received a new lease on life with Apple's new iPhone line. This is how it works and why it could soon be in every home, including robots.