This power supply circuit is simple, affordable, and uses only 5 components.
It converts 220V or 110V AC mains voltage to a stable 5V DC output, suitable for powering devices like USB chargers.
Components
- Transformer – 220V (or 110V) to 12V
- Diode Bridge Rectifier – 4 Diodes
- 470 µF (20V and upwards) Capacitor
- 1 µF (10V and upwards) Capacitor
- 7805 5V Regulator
Circuit Diagram
