Simplest DC power supply circuit using 78XX is shown below.
Parts
D1, D2, D3, D4 – 1N4007
IC1 – 7812
IC2 – 7805
C1 – 1000 mf
C2 – 330 mf
C3 – 10 mf
T1 – 12 v Step down transformer, 1 A.
Simplest DC power supply circuit using 78XX is shown below.
Parts
D1, D2, D3, D4 – 1N4007
IC1 – 7812
IC2 – 7805
C1 – 1000 mf
C2 – 330 mf
C3 – 10 mf
T1 – 12 v Step down transformer, 1 A.