Recently, Apple announced the environmental protection transcripts in the past two years in the official public account. Apple completely eliminated the plastic film covering the iPhone case, reducing the amount of plastic used by 600 tons. The charger is no longer included, and Apple is estimated to have saved 550,000 tons of copper, tin and zinc ore.
Many netizens have had a heated discussion about this. Some people think that it is very environmentally friendly, and some people think that it is inconvenient to not include a charger, especially for people whose mobile phone models are different from those used before. We all know that non-original chargers charge much slower than original ones. Why is this, and how are chargers made?
A small charging head consumes a lot of labor and material resources, and it takes more than 20 steps to make it. The common charging is divided into two parts: the internal circuit board and the external shell. First, it will be placed on a fully automatic printing machine and brushed with a layer of solder paste. Then enter the next process: SMT patch, which is mainly used for the installation of electronic components without pins or short pins.
The installed circuit board enters the reflow soldering machine for reflow soldering, and blows heated air or nitrogen gas to the circuit board with the installed components to connect the circuit. Each qualified charger needs to be powered on and tested before leaving the factory, so that bad products can be screened out in advance during the testing process.
Knowing the production process of the charging head, how does it achieve fast charging? Because they are both Gallium Nitride (GaN) chargers. In the past, the higher the charging power of the charger, the larger the volume of the charger, but gallium nitride solves this problem.
Gallium nitride is also known as the third-generation semiconductor material, which makes the efficiency of alternating current to direct current higher, and has the characteristics of high pressure and high temperature resistance and strong thermal conductivity, so it can withstand higher voltage when charging, and can also Reduce fever. Therefore, gallium nitride chargers provide people with a new option due to their small size and fast charging.
Post time: Jul-26-2022