History of wireless charging
Wireless charging technology has been around since the early days of Nikola Tesla’s work in the 19th century. However, it wasn’t until recently, with the introduction of Qi wireless charging, that the technology has become commercially available and widely used. Qi, which stands for “quality of interaction”, is a wireless charging standard developed by the Wireless Power Consortium, a group of over 400 electronics companies. Qi technology is used by many of the world’s leading smartphone and tablet manufacturers, including Apple, Samsung, and LG.
So, how does wireless charging work? Well, it is based on the principle of electromagnetic induction. This is a process in which a voltage is induced in a coil of wire when it is placed in an varying magnetic field. In a wireless charger, an induction coil is embedded in the charger and the corresponding device (e.g., smartphone) has a second induction coil built in. When the two coils are aligned, a magnetic field is created and a current is induced in the device’s coil, allowing the device to be charged wirelessly.
The history of wireless charging technology can be traced back to the late 19th century, when Nikola Tesla first developed it. In the early 20th century, researchers began experimenting with ways to power remote devices wirelessly, leading to the development of radio-based charging systems. However, these systems proved to be inefficient and were never widely adopted.
In the late 2000s, the Wireless Power Consortium developed the Qi standard for wireless charging. This standard revolutionized the industry, as it provided a reliable and efficient way to charge devices wirelessly. Qi wireless chargers have become increasingly popular over the past few years, with many leading smartphone and tablet manufacturers now supporting the standard.
Today, wireless charging is an invaluable tool for many people. It eliminates the need to plug and unplug cables, allowing users to charge their devices quickly and conveniently. Furthermore, wireless chargers are becoming increasingly affordable, making them accessible to a wide range of consumers. With the continued development of wireless charging technology, it is likely that wireless charging will continue to become even more commonplace in the future.