This is a 5v linear voltage regulator circuit.Input voltage should not be more then 35V.
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Step 1: Test It on the Breadboard
Parts List :
2) 100 nF (ceramic capasitor)
3) 10 uF (electrolite capasitor)
4)100 uF (electrolite capasitor)
Step 2: Connecting the Parts
Now put your LM7805 on your breadboard pin 1 is input voltage pin 2 ground pin 3 is output voltage
positive part of the 10uF capasitor should be connected with pin3 and a 100nF capasitor will connected with this in parallel. Then the positive part of the 100uF capasitor should be connected with pin1. The circuit is done.