stroomadapter
A stroomadapter, also known as a power adapter or AC adapter, is an external electronic device that converts alternating current (AC) from a mains socket into lower voltage direct current (DC) that electronic devices require to function. These adapters are ubiquitous in modern life, powering everything from laptops and smartphones to routers and external hard drives. They contain a transformer to reduce the voltage and a rectifier circuit to convert AC to DC. Some adapters also incorporate voltage regulators to ensure a stable output voltage. The specific voltage and current output of a stroomadapter is crucial, and using an adapter with incorrect specifications can damage the connected device. They typically feature a connector that plugs into the device and a plug that inserts into a wall outlet. Different regions use different plug types and mains voltages, so adapters are often designed for specific markets or feature interchangeable plugs. The efficiency of stroomadapters has improved over time, with many modern units meeting energy-saving standards.