A laptop adapter is the main powering system of your laptop, but it always goes hot when you touch it. Don’t worry about that it is normal, it converts AC electricity from the electrical plug into DC electricity. Which used to charge the laptop battery or run the laptop if you removed the battery.
The heat produced is disposed of through that high temperature which you could feel when you touch it.
Most of the electricity sources are AC (Alternating Current) except the batteries are DC sources. The laptop adapter performs a transformation of AC electricity 110/220 V to a lower DC value (9,12,14…). So the amount of electricity lost in this process is transformed into heat which causes the adapter to be hot.
Since it contains electric dissipation elements like resistors, this process follows the fundamental of energy-saving ( total input energy = total output energy ).
Also, the heat produced in the AC-DC converting process must be disposed of. the most effective heat sink is Fluid (water or air). Because of that, your laptop has a fan and heat sink pins.
But in the adapter case, there is no disposal of the heat so the heat is transferred to the case from the air inside the closed adapter. The plastic case of the adapter will get hotter as long as it works.
If you touched the adapter anytime and it was cold you should know that it is not working fine. If you think that your laptop adapter is very hot, just unplug it and put it toward the air stream, it will cool down.
Laptop adapters are usually very hot, and this can be quite alarming for users. After all, we are used to our electronics not being too hot to the touch. So, why is it that laptop adapters get so hot?
There are a few reasons for this. Let’s take a look at some of the most common reasons why your laptop adapter might be running hot.
1. It’s working overtime
One of the most common reasons why your laptop adapter is running hot is because it’s working overtime. If you’re constantly using your laptop for demanding tasks, then your adapter is going to have to work harder to keep up. This can cause it to heat up quite a bit.
2. Defective hardware
In some cases, the reason why your laptop adapter is running hot could be due to defective hardware. If there is something wrong with the adapter itself, then it’s going to have to work harder to function properly. This can lead to a lot of heat being generated.
3. Overheating protection
In some cases, the reason why your laptop adapter is running hot is because it has overheating protection built-in. This means that if the internal temperature of the adapter gets too high, it will shut off to prevent damage.
4. Ambient temperature
The ambient temperature around your laptop can also play a role in how hot your adapter gets. If it’s very warm in the room where you’re using your laptop, then the adapter is going to have to work harder to keep the internal temperature down. This can lead to overheating.
Now that you know why laptop adapters get so hot, you can take steps to prevent your adapter from overheating. If you’re concerned about the heat being generated by your adapter, make sure to use it in a well-ventilated area. Additionally, you can try using a cooling pad to help keep your laptop cool. And, if you’re ever in doubt, don’t hesitate to contact the manufacturer of your adapter for more information.