Skema adaptor 5 Volt tanpa Trafo.

Komponen adaptor 5 Volt tanpa Trafo.

R1 = 1 M / 1 Mega Ohm
R2 = 10 Ohm
R3 = 100 Ohm
R4 = 150 Ohm
D1-4 = Dioda 1N4007
D5 = Dioda Zener 5V
C1 = Kapasitor Milar/ Mika 105K / 400V
C2 = Elco 220uF / 25V
L1 = Lampu LED

Sumber : https://www.divaiz.com/cara-membuat-adaptor-5-volt-tanpa-trafo/