Power Supplies

Power supplies provide the stable voltage and current needed to run micro‑controllers, single‑board computers, sensor arrays and motor drivers. A regulated output, commonly 5 V, 3.3 V, 12 V or specialised levels such as 1.8 V, ensures reliable operation while protecting delicate circuitry. Many designs accept a wide input range (for example 4‑12 V) and include simple connectors for direct insertion into a breadboard or terminal block, making prototyping quick and tidy. Some units deliver power over USB‑C or via Power‑over‑Ethernet, allowing compact cabling for remote boards. Others break out ATX rails, giving access to both 5 V and 12 V from a single wall adaptor for larger projects. Key considerations include regulation accuracy, current capacity, connector type and the ease with which the supply can be integrated into a system.