The NFC charging standard is very suitable for small IoT devices with small battery capacity. Wireless charging can be achieved without additional coils and peripheral circuits, reducing costs and making the device smaller.
At present, the demand for wireless charging of smart wearable devices is very strong. Smart wristband watches and TWS headset charging boxes are basically equipped with wireless charging as standard. Most of these products have limited battery capacity and are not so sensitive to charging power, and they can even be charged with NFC. Current Android phones also basically support wireless reverse charging. Xiaomi Mi 10 Pro+ has reached a reverse charging power of 10W. It can easily charge TWS headset boxes and other small IoT devices. It can also give Apple a wireless "quick" by the way. Charge".
Instead of pursuing high-power private wireless charging standards, I think the introduction of the NFC charging standard is of greater significance to the entire wireless charging ecosystem. The NFC charging standard introduced in May uses a 13.56 MHz base frequency and supports four power transmission levels of 250, 500, 750 and 1000 milliwatts. The power of 1W is trivial, but it solves the problem of existence.
The NFC charging standard is very suitable for small IoT devices with a small battery capacity. Wireless charging can be achieved without additional coils and peripheral circuits, which reduces the cost and makes the device smaller. For mobile phones, the NFC charging standard It can also allow wireless charging to reach the thousand-yuan level. The current mobile phones equipped with NFC function are of great significance and make wireless reverse charging easier. The combination of wireless reverse charging and NFC charging should speed up the popularity of wireless charging. Wireless life, the future can be expected.