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How To Solve The Heating Problem of Power Adapter?

Views:79     Author:Site Editor     Publish Time: 2019-11-27      Origin:Site


The power adapter heat is inevitable. The heating of power adapter will lead to the slow charging speed of battery, poor charging contact and other faults, which will affect the normal use of notebooks and reduce the service life. So how to solve the heating problem of power adapter?



Classification of Power Adapters

There are two main types of power adapters, switching power supply and linear power supply.


Switching power supply is a kind of power supply which uses modern electronic technology to control the time ratio of switching on and off and maintain stable output voltage. The adjustable switching power supply of power adapter is generally composed of pulse width modulation (PWM) and MOSFET.


Advantages: high work efficiency, small size, it can work in a wide voltage range.

Disadvantages: large interference to the power supply circuit, it is difficult to repair when the fault occurs.



The linear power supply converts the alternating current through the transformer, and the rectifier circuit rectifies and filters to obtain the unsteady DC voltage. To achieve the high-precision DC power supply, the power adapter must adjust the output voltage through the voltage feedback circuit.


Advantages: this power supply technology is mature, the circuit is simple, and there is no interference and noise of the dc switching power supply.


Disadvantages: the voltage feedback circuit works in a linear state, the power consumption of the adjustment tube is large, and the conversion efficiency is low. Because of the use of inductance transformer, the weight of the device is large.



The Method of Solving the Power Adapter Heating


Create a good heat dissipation environment and place the power adapter in a location that is not exposed to sunlight and is ventilated. Remember that it can not be used for too long at high temperatures. If you have to use it for a long time, be sure to pay attention to heat dissipation. You can put the fan aside to help dissipate heat.


A narrow plastic block or metal block can be placed between the adapter and the surface of the table to speed up the heat dissipation of the adapter.


In the high temperature environment, the adapter is placed on the side to reduce the contact with the ground area, so that the adapter can dissipate the heat better.


The power adapter heating is generally caused by battery charging and computer consumption. You can set it in the battery management software. For example, select the best battery maintenance mode in Lenovo's battery management software, select the disable charging mode in Dell's battery management software.


You can often use a dry soft cloth or paper towel to wipe the surface of the power adapter dust, to prevent dust from entering the gap and reduce the heat dissipation performance.


The above is about the method of solving the heating problem of power adapter. Power adapter heating is a normal phenomenon. The greater the power of the power adapter, the more energy is lost, and the heat generated by the power supply is greater. It is also very important to choose a brand with a guaranteed quality.



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