Low-power power supplies are widely used in the electrical and electronic industry. In the process of application, some power failures, such as poor start-up, low output voltage, and overheating of the module, often occur. problem? This article will be announced for you.

The principle of choosing a power adapter 1. The maximum output current of the adapter shall be consistent with the maximum current required by the notebook as far as possible; if it is different, it shall be equal to or greater than the current required by the notebook;Note: as long as the current is large, you do not have to worry about how big, no matter how big you are, you do not have to worry about burning the machine!However, the current should not be too small, because unstable conditions such as screen flicker may occur.For example, the adapter of IBM T30 (16V, 4.5a) can be used on IBM ThinkPad T20 (16V, 3.36a) or ThinkPad X31 (16V, 3.5a).Here's how it works: the power adapter adjusts the output current according to the load, not the same.