Power adapters, also known as external power supplies, are power supply voltage conversion devices for small portable electronic devices and electronic appliances. Power adapters are commonly used on small electronic products such as mobile phones, LCD monitors, and laptops.
Here is the content list:
What is a power adapter？
Proper use of the power adapter
How to dismantle the power adapter？
What is a power adapter?
The power adapter is a small portable electronic equipment and electronic appliances power supply power conversion equipment, generally by the shell, transformers, inductors, capacitors, and other components, the working principle of the power adapter from the AC input to DC output; according to the connection can be divided into plug-in wall type and desktop type. Power adapters are widely used in security cameras, set-top boxes, routers, light bars, massage instruments, and other equipment.
Proper use of the power adapter
1. Power adapters for different models of laptops should not be mixed
The power adapters of different brands of laptops have some differences in output interface, voltage, and current values, and therefore should not be mixed. Otherwise, the battery will not be charged, the screen will flicker, and the motherboard will be burned or other hardware will be damaged. The same brand of different models of notebook power adapters should also be used with caution, it is recommended to consult a professional technician before operating.
2. Reasonable charging of the power adapter
When the laptop's battery is charging, it is best not to run the program that makes the whole machine work heavily, lest the output power of the power adapter is not enough to cause the battery to charge slowly or not enough, the power adapter is overloaded.
3. The power adapter should be stopped in time when abnormalities occur
When the power adapter makes a large working noise or even smoke, it is often damaged or malfunctioning, and should be stopped immediately and put into use again only after the power adapter has been overhauled by a professional engineer.
How to dismantle the power adapter？
1. The upper and lower covers of the power adapter are injection molded or glued with strong adhesive, without any screws to dismantle.
2. Place the power adapter sideways on a white sheet of paper and use the blade of an electrician's knife to cut along the gap between the upper and lower covers of the power adapter, then strike the back of the electrician's knife with a hammer to cut in between the upper and lower covers of the power adapter.
3. At different locations in the gap between the upper and lower covers of the power adapter, run the tip of the electrician's knife along the gap and when a part of the upper and lower covers first splits, drive the tip of the knife deeper and then slowly separate the upper and lower covers of the power adapter.
4. Then open the shell of the power adapter, you can see that the power adapter circuit is wrapped with a copper shield, use a hobby knife to cut the shield on the tape paper, and then solder the shield with a soldering iron to connect the two solder joints with the internal circuit board, you can take down the shield of the power adapter.
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