Home > News Center > Industry News

News Center

Related news

No search results found!

The historical development of wireless charging
2019-10-24 13:39:46

In 1890, Nikola Tesla, a physicist and electrical engineer, conducted a wireless transmission test to realize AC power generation. The SI system of magnetic induction intensity is also named after him. Tesla's idea of wireless transmission method is to take the earth as the inner conductor and the earth's ionosphere as the outer conductor, to establish a low-frequency resonance of about 8Hz between the earth and the ionosphere by amplifying the transmitter in the mode of radial electromagnetic wave oscillation, and then use the surface electromagnetic wave around the earth to transmit energy. However, due to lack of financial resources, Tesla's bold idea has not been realized. Although the future generations have fully confirmed the feasibility of this scheme in theory, the world has not yet achieved great harmony, and it is impossible to carry out energy broadcasting and free access in the world. So a great scientific idea is born dead.

wireless charging wholesale


On June 7, 2007, the MIT research team published the research results on the website of science. The research team applied resonance to the transmission of electromagnetic wave and successfully "grasped" the electromagnetic wave, using copper coil as the electromagnetic resonator, one coil attached to the transmission power side, the other in the receiving power side. After a certain frequency of electromagnetic wave is sent out by the transmitting party, the electromagnetic field diffuses to the receiving party, and the electric power can be conducted wirelessly. The technology, which they call "wireless power," has been tested many times and has been able to power a 60 watt bulb two meters away. The technology's long-distance transmission can reach 2.7 meters, but the researchers believe that the power supply can already charge the battery in this range. And only need to install a power supply, you can power the whole house.

In February 2014, Dell, the computer manufacturer, joined the a4wp camp. At that time, the relevant senior leaders of the camp said that they would upgrade the technology and support the ultrabooks of Dell and other computer manufacturers for wireless charging. Most of the traditional laptops on the market have a power supply of more than 50 watts, but the ultrabook uses Intel's low-power processor and will be the first batch of laptops to be charged wirelessly. Before that, wireless charging technology was only related to "small" mobile devices such as smart phones and small-scale tablets. However, a4wp ("wireless charging alliance"), one of the three camps of wireless charging, recently announced that its technical standards have been upgraded, and the charging power supported has increased to 50 watts, which means that high-power devices such as laptops and tablets can also realize wireless charging.

In October 2017, the mobile phone family that supports wireless charging features welcomed three new members: iPhone 8, iPhone 8 plus and iPhone X - all of which support the Qi wireless charging standard, in order to bring greater convenience to users and make the mobile phone itself look cooler.


Connect With Us

Your email address