GETTING STARTED WITH ELECTRONICS, MAKING A 5 VOLT REGULATOR

Making a 5 volt regulator is often necessary when you want to do an electronics project, for example your cell phone and many electronics development board like Arduino, Raspberry Pi, BeagleBone Black require a 5 volt power supply (although in case of development boards, the manufacturers admit that they have included the regulation circuit on board but it is a safer and better idea to feed them with a regulated supply).

Parts needed to make the 5 volt regulator:

1. 9-12 Volt AC To DC transformer
2. 7805 5 Volt Regulator
3. 10 uF polarized electrolytic capacitor (C1)
4. 0.1 uF non-polarized monolithic capacitor (C2)
5. 1 uF polarized tantalum capacitor (C3)

      (Schematic from LTSpice)

Also you would need to make sure to connect proper leads using right polarity (Usually, longer lead is +ve always)

               

(Polarized capacitor)

It would be a better idea to test the output with multimeter and also don't use it too heavily since 7805 chip might get very hot (in case you want to use it heavily, make sure that when you buy 7805 chip, it has proper heat sink attached to it or else you buy the heat sink separately).

Now you would be ready to experiment with the 5 Volt : like playing with LED's, DC Motors and various other digital stuffs!