Wireless mobile power refers to equipment and devices with built-in batteries that obtain power through wireless induction for charging. Wireless charging technology is derived from wireless power transmission technology. Its working principle uses the principle of induction cooker. When current passes through the coil, a magnetic field will be generated; and the generated magnetic field will form a voltage, and after a voltage, a current will be generated. You can charge with current, and now this technology has been used in wireless power banks.
Wireless charging is realized through the following three methods: electromagnetic induction, radio waves, electromagnetic resonance
At present, the most common wireless charging solution is: electromagnetic induction, which generates electric current through primary and secondary coils, thereby transferring energy from the transmission section to the receiving end. This solution provider includes companies such as Splashpower in the United Kingdom, WildCharge and Fulton Innovation in the United States . The industrialization of wireless charging technology based on the principle of electromagnetic induction is the most mature. There are three core technologies in electromagnetic induction wireless charging systems: resonance control, high-efficiency power transmission and data transmission. Several key technical problems have not been resolved until recent years, and the solutions are still evolving.
The principle of wireless charging mobile power: is the conversion of magnetic energy into electric energy, which is based on the principle of induction cooker
Because wireless charging requires a sending end and a receiving end, the wireless charging mobile power supply is equipped with a sending device on the basis of the conventional mobile power supply, and the charged mobile phone supports wireless charging and has a receiving coil for wireless charging. In the case of a coil at the transmitting and receiving ends, the transmitting end coil is connected to a wired power supply to generate electromagnetic signals, and the receiving end coil induces the electromagnetic signals at the transmitting end to generate current to charge the battery.
pros and cons
The advantages are convenient interactive data, fast transmission speed, easy operation, and multi-function integration, but the disadvantage is that charging can only be close
