The world is moving rapidly to wireless. In just a few decades, the internet and phones became wireless. Now, charging is wireless. Wireless charging is still in its infancy, but it is expected to improve dramatically over the coming years. Now you can even purchase invisible wireless charger for more convenience and efficiency.
This technology is now being used in a variety of practical applications, including smartphones, laptops, wearables, kitchen equipment, and electric vehicles. There are many wireless charging technologies available today that can cut cables.
Wireless charging is becoming more popular in the automotive, healthcare, and manufacturing sectors. It promises better mobility and advancements that could allow the Internet of Things (IoT), to be powered remotely.
Wireless charging works on the principle of magnetic resonance or inductive power transfer (IPT). The charger transfers energy via electromagnetic induction to the receiver at the back. An induction coil generates an electromagnetic field that the charger converts into electricity. Below are some wireless charging options.
Wireless Power Consortium (WPC), and Power Matters Alliance(PMA) are two of the most popular wireless charging technologies on the market. WPC and PMA both work on the same principle, but they differ in the frequency of operation as well as the connection protocols.
WPC Charging Standard is an open-member organization that maintains various wireless charging standards. This includes the Qi Standard which is the most widely used standard today.
Qi standards require that devices are physically connected to the source to be charged. Wireless power transfer is possible with the technology at present. The technology will soon be able to transmit up to 15 W and then 120 W over longer distances.