AC-DC

An AC-DC power supply module is an electronic device that converts AC (Alternating Current) from a mains power source into low-voltage DC (Direct Current) for electronic circuits. The module shown contains a transformer, capacitors, diodes, and other electronic components that work together to reduce, rectify, filter, and regulate the input voltage. It can provide a stable DC output, such as 5V DC, for powering devices like Arduino boards, sensors, LED circuits, and other low-voltage electronic projects. These modules are compact and useful for providing power to electronic circuits, but they must be handled carefully because the input side can carry dangerous mains voltage.