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PostPosted: 29 Jul 2010, 12:58 
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Joined: 03 Oct 2008, 20:40
Posts: 360
Location: софия
Aвтомобил: accent
Формула за изчисляване на съпротивлението, необходимо за връзване на светодиод (LED) на 12 волта
R=(V-vf)*1000/mA
R = стойност на необходимия резистор (съпротивление)
V = захранващо напрежение
vf = волтаж на LED (обикновено около 2v)
mA = мощност на LED (обикновено между 20-50)

**СВЕТОДИОД d5x8мм,ЧЕРВЕН CLEAR,3000 mcd,1.6-2.7V/Imax=20mA**

R=(12-2)*1000/20
R=10*1000/20
R=500

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