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How to choose the right power adapter
time2019/05/11
- The power adapter has a variety of parameters, so you can't use the adapter to charge it at will. Before selecting a power adapter, first determine the three adaptation conditions.
The power adapter has a variety of parameters, so you can't use the adapter to charge it at will. Before selecting a power adapter, first determine the three adaptation conditions.
1.The interface of the adapter matches the device;
2.The output voltage must be the same as the rated input voltage of the load (mobile device), or the voltage range that the load (mobile device) can withstand, otherwise the load may be burned (mobile device);
3.The output current of the power adapter should be equal to or greater than the current of the load (mobile device) to provide sufficient power;
The following three conditions are analyzed.
1.The mismatched interface should not be inserted without professional knowledge, otherwise it will be dangerous.
2.Why the voltage is consistent, in principle, this is the case - the voltage is not enough to drive the load, the battery can not be charged properly, the popular point is that supply is in short supply.
3.For the reason why such a current configuration is required, this involves the principle of the circuit. Everyone knows that the power supply has an internal resistance, and the larger the internal resistance, the greater the loss.
This article outlines how to select the power adapter according to your needs, and gives three easy-to-understand selection conditions, and then explains the three conditions separately, which is very suitable for novices to read. I hope that everyone can gain something after reading this article. Shenzhen Lianyunda Xiaobian will also bring you more basic knowledge.