The mystery of wireless charging: The exploration of electromagnetic induction and magnetic resonance With the rapid development of science and technology, wireless charging has penetrated into our daily life, from consumer electronics to industrial equipment, and even the automotive field, it is quietly changing our use experience. This article will delve into two mainstream wireless charging technologies: electromagnetic induction and magnetic resonance, to give you a deeper understanding of this convenient way to transfer power.
Now, let's explore the secrets of these two technologies! Electromagnetic induction technology is the first generation of mobile phone wireless charging representative,A certain frequency of alternating current is transmitted through the primary coil, and electromagnetic induction is used to generate current in the secondary coil to achieve wireless energy transmission. However, this technology can only achieve single-to-single, short-distance (within 1cm) charging, the power is limited to 5 watts, and can not achieve single-to-multiple charging like WiFi.
Explore the mysterious world of wireless chargers: schematic diagram reveals and waveform diagram analysis Wireless chargers, this seemingly invisible scientific and technological masterpiece, actually contains the mystery of electromagnetic induction. It is like a miniature electromagnetic magician, using the principle of transformers to transform the magic of electricity into wireless transmission
Wireless charging PCB, different functions, the required components are different. The required components are: resistor, capacitor, resonant capacitor, resonant coil, MOS tube, control chip, protocol chip.
Wireless charging requires a chip inside the device to receive electromagnetic waves and electromagnetic fields, and the nova8 does not have this chip. Also, wireless chargingEfficiency and speed are also not as good as wired charging, so wireless charging capabilities may not be needed by all users. The nova8 does not currently support wireless charging, but it does support 40W wired fast charging, which can be quickly charged in a short time. If you need wireless charging, you can choose other mobile phones that support wireless charging.
News on October 31, Xiaomi announced thatThe Mi 11 Pro Magic version broke two charging records, including wired support for 200W power, only 8 minutes to fill 4000mAh battery, wired charging for the first time into the 10-minute era. Specifically, taking the 4000mAh battery as an example, the 200W wired charge is charged to 10% in 44 seconds, 50% in 3 minutes, and 100% in 8 minutes.
And we should know that Xiaomi is not only selling mobile phones, it is more like an ecological chain. He also has a big idea for electric vehicles and wants to raid them, so its fast-charging technology can be referenced to electric carsIn the case of the car, it is really a three-hour journey, and it only takes three minutes to charge. This is a very scary concept, so for him, if you go into the electric car market, it will become a big selling point.