What is a Wireless battery chargers?
Wireless battery chargers is refers to the use of electromagnetic induction principle of charging equipment,the principle is similar to transformer. At sending and receiving end each have a coil, the sender coil connect cable power produced electromagnetic signal at the receiving end coil induction send the electromagnetic signal which generate electricity to recharge the battery.
How Does wireless battery chargers Work?
Physicists have long known that in two resonant frequency between the same object can effectively
transport energy, and different frequency interaction between objects are relatively weak. Singer can beequipped with different water bottles in a shatter, not affect other bottle is this truth. This also is like we swing, just sit above let droop legs synchronous swinging can swing to bring power as well. wireless battery chargers technology is made use of this principle. By the same token, wireless technology is applied the charging electromagnetic induction principle, and the related ac induction technology, in sending and receiving end use corresponding coil to send and receive induced the ac signal to recharge one technology, the user need only will charging equipment in a “flat” can charge such charging ways past had
appeared in watches and razor, but was not able to large capacity rechargeable lithium ion battery effectively. Wireless charger technical principle composition as shown.
What should I be careful about?
The MIT researchers have said, the body of the electric field reaction of strong, but the body of magnetic field reaction is almost no, so the system will not affect human health. But it is just speculation, researchers view expressed concern that in real life, applied before need further testing. As the electronics charging products, charger itself cannot avoid radiation and so wireless charger has radiation is inevitable. But now the power is small, wireless charger recharge time longer, which causes radiation is small, should not have great harm to people.
