3.Components Required - Rutujakage1/DC-Voltage-Adapter GitHub Wiki

The components required for the project are listed below:

Sl NO. COMPONENTS SPECIFICATIONS QUANTITY
1 Transistor(PNP) 2N2905 1
2 Transistor(NPN) 2N2222 1
3 LED ---- 1
4 Transformer(step down) 220V AC to 12-0-12 AC, 1.5A 1
5 Resistors 220Ω, 330Ω, 4KΩ, 22Ω, 10KΩ, 1KΩ -
6 Capacitors 1nF,470uF 1,1
7 Diode 1N4007 4
8 Connecting Wires ---- Assorted

Voltage regulator :

As we require a 5V we need LM7805 Voltage Regulator IC. 7805 IC Rating :

  • Input voltage range 7V- 35V
  • Current rating Ic = 1A

Rectifying circuit :

  • The best is using a bridge rectifier
  • 1N4007 diodes are used to form the bridge rectifier circuit.