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<p> As the functions of smart devices continue to increase, their power consumption also begins to grow faster and faster. People are getting used to carrying portable chargers or<a href="https://www.fuyuanpower.com/power-adapter" rel="noopener noreferrer" target="_blank"><strong> <a href="https://www.fuyuanpower.com/power-adapter" target="_blank">power adapter</a>s</strong></a> with them. For many people, the concept of the power adapter is only at the stage of the charger, but in fact the power adapter is a transformer, which is widely used in the charger. People who are not familiar with power adapters often need to face which power adapter to use for charging.</p><p><br></p><p> The parameters of the power adapter are various, so it is not possible to use the adapter for charging at will. Before selecting a power adapter, first determine three adaptation conditions.</p><p><br></p><p> First, the interface of the adapter matches the device;</p><p><br></p><p> Second, the output voltage must be the same as the rated input voltage of the load (mobile equipment) or within the voltage range that the load (mobile equipment) can withstand; the load (mobile equipment) may be burned;</p><p><br></p><p> Third, the output current of the <a href="https://www.fuyuanpower.com/power-adapter" rel="noopener noreferrer" target="_blank">power adapter</a> should be equal to or greater than the current of the load (mobile device) to provide sufficient power; the following will analyze the above three adaptation conditions.</p><p><br></p><p> First, mismatched interfaces must not be plugged in without professional knowledge, or it will be dangerous.</p><p> </p><p> Second, as to why the voltage needs to be consistent, in principle it is like this-the voltage is not enough to drive the load, and the battery cannot be charged normally. The popular point is that the supply is in short supply.</p><p><br></p><p> Third, as to 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 greater the internal resistance, the greater the loss. Therefore, when the manufacturer produces this adapter, it will determine the no-load output voltage within a certain range according to the internal resistance, and the current critical value corresponding to the voltage critical value is the nominal current value we see, the more the nominal current value The larger shows that the better the loading capacity of the adapter. Therefore, choosing an adapter with a slightly higher current will not damage the battery, but will make charging faster.</p>
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