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The characteristics, classification, and selection methods of desktop power supplies

Article Source：Kinri Energy | Author：Kinri Energy | Issuing Time：2024.05.27
With the development of technology and the improvement of people's living standards, electronic products have become an indispensable part of our lives. And desktop power supplies are becoming increasingly important. This article will introduce the characteristics, classification, and how to choose a suitable desktop power supply from three aspects, to help you better understand and use this important electronic device.


48W Desktop Power Adapter

The characteristics of desktop power supplies

Desktop power supply is a type of power supply that converts AC power into DC power, with the following characteristics:

1. Efficient and stable: The desktop power supply adopts switch mode power supply technology, which has the advantages of high efficiency, low heat generation, and good stability.

2. Multi interface design: Desktop power supplies typically have multiple output interfaces that can simultaneously power multiple devices.

3. Energy saving and environmental protection: Desktop power supplies have intelligent energy-saving functions, which can automatically adjust the output power according to the different needs of the device, reducing energy consumption.

4. Safe and reliable: The desktop power supply has multiple safety protection functions such as overcurrent protection, overvoltage protection, short circuit protection, etc., ensuring safe and reliable use.

Classification of desktop power supplies

Desktop power supplies can be classified according to different standards, and common classification methods include:

1. According to the output voltage: Desktop power supplies can be classified into different specifications such as 5V, 9V, 12V, etc. based on the different output voltages.

2. According to power: Desktop power supplies can be classified into types such as low power, medium power, and high power based on their power.

3. According to interface type: Desktop power supplies can be classified into USB-A USB-C and other types.

4. According to function: Desktop power supplies can be classified into ordinary, intelligent, and other types based on their different functions.

How to choose the appropriate desktop power supply

When choosing a suitable desktop power supply, the following aspects need to be considered:

1. Output voltage and power: It is necessary to choose the appropriate output voltage and power according to the equipment used, to ensure that it can meet the power supply needs of the equipment. Generally speaking, for typical mobile devices, the output specifications of 5V/1A or 5V/2A are sufficient to meet the requirements. If you need to charge your tablet or certain special devices, you may need a higher power supply. Also, pay attention to whether the output voltage of the power supply matches the input voltage of the device.

2. Interface type and quantity: It is necessary to choose the appropriate interface type and quantity based on the device used to ensure smooth connection to the device. For some old devices, traditional USB-A interfaces may be required; For some newer devices, USB-C interfaces may be required. At the same time, attention should also be paid to whether the number of interfaces meets the requirements to avoid affecting the convenience of use.
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