5V Dual Power Supply Circuit with PCB

Introduction

In electronic devices and circuits, we consider the power supply one of the important and basic circuits. And, that’s why we have seen that many students start their learning about electronic circuitry through the understanding of power supply circuits. Fundamentally, the power supply converts the AC power into DC power. Therefore, the power supply includes the rectifier circuit in its circuit So, to understand them and to learn the whole circuit, In this tutorial, we are going to “5V Dual power Supply circuit with PCB”. It gives the positive and negative DC supply at the output side.

We are making this circuit on the Printed circuit board as it makes the circuit more secure. Thus, you can use any type of PCB-making software for this purpose. Also, make sure to use the better quality PCB to make an effective circuit.

Hardware Required

S.no	Component	Value	Qty
1.	IC	L7805	1
2.	IC	L7905	1
3.	Diode	2W10	4
4.	LED	–	2
5.	Capacitor	0.1uF, 10uF, 100uF	2, 2, 2
6.	Resistor	1KΩ	2
7.	3-Pin Connector	–	2

Circuit Diagram

Working Explanation

To make a 5V Dual power Supply circuit firstly, we give the 8V-0-8V, coming from the transformer to the full-bridge rectifier circuit, that we have made with the help of diodes. The rectifier converts the AC into DC but it has the DC ripples in it. These DC ripples are filtered by the capacitors C1 and C3 attached to the circuit. Now, this voltage is provided to two different regulators ICs. IC L7805 gives the positive DC voltage, while IC L 7905 provides the negative DC voltage. The voltages get filtered by the capacitors wired in this circuit and we get the dual supply at the output load.

Application and Uses

It is used in many electronic devices and circuits.