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The difference between the built-in power supply and the external power supply

Issue Time:2019-05-13
For the charger, most people use more, but little is known, and many people still can't tell the difference between the power adapter and the charger. If you want to say the built-in power supply and the non-built-in power supply, you know There are even fewer people. In fact, these are things that we often touch in our lives. It is not difficult to understand. Next, Shenzhen Unicom Power Adapter manufacturers will explain to you what is built-in power supply and non-built-in power supply.

The built-in power supply and non-built-in power supply charger are distinguished by whether or not a built-in buck regulator module is built in. The operating voltage of the charger is usually 11~18V, and some are 24V, but only some ultra-high power models. And our household electricity is 220V, so we need a set of step-down equipment, which is the power adapter, to supply power to the charger.

Most chargers are not built-in power supplies. The reasons are generally as follows: First of all, because of the professional charger, most of the power is very large, and the high-power power supply will be more bulky and not suitable for being built into the charger. Therefore, the charger with built-in power supply generally does not have too much power, and there is less than 100W of charging power. Like our usual laptop, it is not a built-in power supply.

The built-in power supply charger has a built-in power adapter inside the charger, so we don't need to purchase additional power to use it. Generally, the power is not too large, but some built-in power chargers with relatively large power generally support external power supply at the same time, that is, both internal power supply and external power supply can be used.

The disadvantage is that an additional power adapter is required to use it, which is sometimes inconvenient to use. Advantages of the built-in power charger: It is easy to use for ordinary people. It can be used at any time with 220V, no need to connect the power adapter. In addition to these, the power adapter manufacturer also recommends to know more about some other power knowledge, so that when you use the power adapter, you will not get confused.

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