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NEWS
09
2022-06
Can the power adapter be checked in?
Release time:
2022-06-09
Hits:
32
When it comes to consignment, I believe everyone is familiar with it. In the process of traveling, especially if you need to take a plane, it is inconvenient to carry a lot of luggage at this time. Consignment has become the best choice. Through consignment, the burden of travel can be reduced. However, although it is convenient to check in, there are many items that cannot be checked. So, can the power adapter be checked? Let's take a look at it together!
Read more09
2022-06
Why are power adapters and chargers getting smaller and smaller?
Release time:
2022-06-09
Hits:
36
In the past, power adapters generally used linear power supplies, which required a very bulky transformer to provide sufficient inductive reactance, so the power adapter was very bulky. Today's power adapters and chargers generally use modern electronic technology. The switching power supply technology directly rectifies the 220V AC power to obtain a signal similar to a square wave. Without the bulky transformer, the volume can naturally be made smaller.
Read more09
2022-06
Distinguish between power adapter and charger
Release time:
2022-06-09
Hits:
36
Many people are confused about what is a charger and what is a power adapter, especially after the power adapters are made smaller and smaller, they not only look alike, but also have similar parameters, which makes us foolishly divided. Not sure.
Read more09
2022-06
The nominal voltage of the power supply is much higher than the voltage of my laptop battery, so it won't happen?
Release time:
2022-06-09
Hits:
40
First of all, you need to know that the power supply to the notebook is different from the battery power supply to the notebook.
Read more09
2022-06
Exactly the same machine, other people's power supply is warm, mine is always very hot, why?
Release time:
2022-06-09
Hits:
42
Don't suspect that there is a problem with your power supply, first check what your notebook is doing, whether it is like the two USB hard drives mentioned above, the CPU runs at full speed, the hard drive reads and writes frantically, the optical drive reads the disk at full speed, while charging the battery, playing loudly It is very important to make good use of power management and reasonably adjust the working state of the notebook according to the task.
Read more09
2022-06
What does the nominal voltage and current of the power adapter (hereinafter referred to as the power supply) mean?
Release time:
2022-06-09
Hits:
39
What does the nominal voltage and current of the power adapter (hereinafter referred to as the power supply) mean? First of all, the nominal voltage of the general power supply refers to the voltage of the open-circuit output, that is, the voltage when there is no external load and no current output, so it can also be understood that this voltage is the upper limit of the output voltage of the power supply.
Read more09
2022-06
They are all power supplies with the same nominal voltage and different output currents. Can they be used on the same laptop?
Release time:
2022-06-09
Hits:
43
The power supply voltage is the same, the output current is different, can it be used on the same notebook. The basic principle is that a power supply with a large nominal current can replace a power supply with a small nominal current. It is estimated that some people will think this way, thinking that a power supply with a large nominal current will burn out the notebook because the current is too large. How much current actually depends on the load for the same voltage. When the books are running at high load, the current is larger, and when the books are in standby, the current is smaller, and the power supply with a large nominal current has sufficient current margin. On the other hand, there is no problem with using a 56w power supply instead of a 72w power supply. The reason is that the design of the power adapter usually leaves a certain margin, and the load power is smaller than the power supply power, so this kind of replacement is feasible in general use. But the remaining power margin is very small. Once your notebook is connected to a lot of peripherals, such as two usb hard drives, then the cpu runs at full speed, and there is a base with an optical drive on it to read the disk at full speed, plus at the same time Charging the battery can be dangerous. Therefore, it is best not to replace the high-current power supply with a low-current power supply.
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