What is a gallium nitride charger?
Before we know about gallium nitride charger, we need to know what gallium nitride is. Gallium nitride is an inorganic substance with the chemical formula GaN, which is a compound of nitrogen and gallium. Belonging to the third generation semiconductor material. The advantages of this material are high switching frequency, wide band gap and low on-resistance. The charger made of gallium nitride has the characteristics of small volume, high load, low loss and low calorific value.
Compared with the 60W charger of Apple's notebook computer, the gallium nitride charger with similar power is only half its size, while the gallium nitride charger with 30W power is only the size of Apple's "Five Blessingg-An" charger. Of course, because the process of gallium nitride charger is difficult, the price is higher than that of ordinary charger.
It is also a gallium nitride charger. What is the difference between Huawei and Xiaomi?
The weight of the two chargers is about 105g, and the cross-sectional dimensions are similar. The length of Xiaomi charger is about 72mm, and that of Huawei charger is about 62mm. Huawei charger is dominant in size, but the pins of Xiaomi charger support folding, which is considered to have their own advantages.
Huawei charger is equipped with three interfaces, two USB-A interfaces and one USB-C interface. However, it should be noted that there is a USB-A interface that is very close to the USB-C interface. According to Huawei's official introduction, these two interfaces can't supply power to the outside at the same time, otherwise the equipment may be damaged, so this design is adopted to prevent two wires from being plugged in at the same time. Xiaomi charger is equipped with USB-A and USB-C interfaces. Although both chargers can only charge two devices at the same time, Huawei chargers are more compatible.
In terms of charging power, the difference between the two chargers is only 1W, which is almost negligible. The USB-A (orange) interface of Huawei charger supports 5V3A( 15W), 10V4A(40W),1kloc-0/V6A (66w). USB-C (orange) interface supports 5V3A( 15W), 9V3A(27W), 12V3A(36W), 15V3A(45W) and 20V3.25a (65w); USB-A (purple) interface supports 5V4A(20W) and 10V2.25A(22.5W). It is worth noting that when two USB-A interfaces or USB-C and USB-A output at the same time, the power is 40W and 22.5W respectively.
The USB-A interface of Xiaomi charger supports 5V2.4A( 12W), 9V2A( 18W),12v1.5a (18w) in the case of single-port output. The USB-C interface supports 5V3A( 15W), 9V3A(27W),1/v5a (55w), 12V3A(36W), 15V3A(45W) and so on. It is worth noting that in the case of dual-port output of Xiaomi charger, the maximum output power of USB-A interface is 18W, and that of USB-C interface is 65W.
Although there is little difference between the two chargers in the maximum output power of a single interface, the scheme of simultaneous output of dual interfaces is quite different. Huawei is relatively conservative (high emotional intelligence) and Xiaomi is more radical. In terms of fast charging protocol, the two chargers not only support their own protocols, but also support fast charging protocols such as PD and QC 2.0, which are highly compatible.
Summary: Huawei's 399 yuan charger price is not cheap. The total output power of Xiaomi is only lower than that of Huawei 1W, and the simultaneous output power of dual interfaces is higher than that of Huawei. Not only that, Xiaomi charger also comes standard with dual USB-C interface data cable. Huawei charger only has a USB-C interface, and its size is smaller.
Do you think Huawei's charger is worth buying? If you had to choose, would you choose Huawei or Xiaomi? I look forward to your wonderful comments!