The Stability Of The Output Voltage Of The Cottage Car Charger Is Not As Good As The Original Car Charger
Apr 06, 2018| This can cause problems such as slow charging and serious heat generation
Why does this happen? The reporter consulted with the gold master who has long been engaged in electrical repair work. Master Jin said that the stability of the output voltage of the cottage car charger is not as good as that of the original car charger, which may cause problems such as slow charging and serious heat of the car charger.
Master Jin said that there are many electronic components inside the car charger. Its main function is to convert 220 volts of AC power into a 5 volt DC power supply through a rectifier bridge, and then charge the phone through the data cable. In this process, if the input 220 VAC breaks down the rectifier bridge and the switch, and the short-circuit protection and insulation of the on-board charger itself fails, the on-board charger may output 220 volts directly to the data line and the mobile phone. Of the AC, resulting in accidents.
"From the appearance point of view, the original and the cottage car charger no difference, but after dismantling, the difference is very obvious, the original car charger safety is significantly higher." Gold master said, from the design point of view, the original car charging The device has circuit protection, and it is internally filled with glue to improve the heat dissipation and insulation of the on-board charger. "These are important methods to improve the safety of the car charger, but there is basically no car charger for the cottage."
At the same time, in addition to the car charger itself, the original and cottage equipped with data lines are also very different. The original data line probably uses 20 copper wires, even if the current is 1-2 amps, it won't be hot and safe; while the data cable in the cottage basically has only 7 copper wires, its ability to pass current is only original. One third of the data line.
Master Jin said that some of the data lines themselves are relatively fragile. After they are used for a long time, the exposed parts of the connectors connected to the mobile phones may be exposed. If the bare wires are exposed by the live line of 220 volts, then the public is in this situation. If you use a cell phone to make a phone call, you may accidentally get an electric shock.