![]() ![]() ![]() Because of the power rating and the type of plug on the end, an AC adapter is not universal and can only be used with devices with the same requirements and connector.International Plug Power SuppliesSome plug-in power supplies come with interchangeable input connectors that you can swap when traveling to areas with different plug types such as the United Kingdom, USA, Europe, Japan and Australia. Each AC adapter has a specific power rating, measured in volts or watts that it can handle and the output of a device. You can learn more in our complete guide to AC/DC adapters.For popular Raspberry Pi power supplies, visit our sister site and all thing Raspberry Pi and SBC.How does an AC/DC adapter work?An AC/DC adapter is made up of a central unit which draws power from an AC outlet, it then converts the power to DC that is used to charge the device. A plug-in power supply resides outside the main unit, unlike a computer power supply which is internal. ![]() These are suitable for applications such as chargers, set-top boxes, motor control and other office automation products. Main power supplies provide power to devices that run on batteries or have no other power source. AC/DC Adapters An AC/DC adapter, or plug-in power supply, is an electrical device that takes input power from a mains power supply and converts or derives the right current, frequency and voltage to power the component it is attached to. ![]()
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