Converting AC (Alternating Current) to DC (Direct Current) is called **rectification**. This process is typically done using a device called a **rectifier**.
There are different types of rectifiers:
- **Half-wave rectifier**: Uses only one half of the AC cycle.
- **Full-wave rectifier**: Uses both halves of the AC cycle for more efficient conversion.
Rectifiers can be made using diodes, which allow current to flow in one direction only, effectively converting AC to DC.