How to select a power adapter?

How to select a power adapter

When we choose a power adapter, we often consider what brand? What about the quality, the price and so on. In fact, we have to consider its stability, convenience and effectiveness

1： whether the interface of the adapter is fully matched with the device;

2： the output voltage must be the same as the rated input voltage of the load (mobile equipment), or in the voltage range that the load (mobile equipment) can withstand, otherwise, the load (mobile equipment) may be burned;

3： the output current of the power adapter should be equal to or greater than the load (mobile device) current to provide sufficient power

4： according to the use of the situation, determine the output voltage and current demand; Power supply size, installation method and installation hole position; There are several output, each output needs electrical barrier; Input voltage planning; Determine the derating degree of the power adapter and power supply based on the ambient temperature Rate; Whether certification and safety standards are required; Cooling method of power supply: natural cooling or forced air cooling; Electromagnetic compatibility standards.