5V Regulated Power Supply Using 7805

Almost every electronics circuit requires 5volts DC supply in one or more sections that make up the circuit. To this end, I will be teaching you how to build a 5V regulated power supply with DC input. I will attach a simulation video at the end.

Components Used

• 7805
• 100uF Capacitor

The main component here is 7805. It basically receives voltage supply between 6V to 30V as input and gives out a regulated 5V. Any voltage less than or equal to 5V does not apply.

The type of capacitor used here is the electrolytic capacitor. It stores charges thereby stabilizing the output voltage. The time it takes for the capacitor to discharge is dependent on the value of the capacitor. A 10microFarad capacitor will discharge faster than a 47microFarad capacitor under the same load.

Have you seen some television sets that the power indicator does not go off immediately it is switched off? This stored charges is responsible for this.

Below is a simulation to demonstrate this.