Hi.
I'm currently working on a project involving approximately 80 UV LED. It would be great if someone checked my math before I go any further.
This is what I have:
R = (Vs - Vl) / I
Vs = 12v
vl = 3,3v
I = 20mA
R = (12v-3,3v)/0,02A = 435 Ohm
I need a 435-ish resistor.
And now for the part I'm not quite sure I've got right:
20mA x 80 = 1600mA
1600mA / 1000 = 1,6A
I need a power supply that give me at leas 1,6 A.
Correct or not?
I'm currently working on a project involving approximately 80 UV LED. It would be great if someone checked my math before I go any further.
This is what I have:
R = (Vs - Vl) / I
Vs = 12v
vl = 3,3v
I = 20mA
R = (12v-3,3v)/0,02A = 435 Ohm
I need a 435-ish resistor.
And now for the part I'm not quite sure I've got right:
20mA x 80 = 1600mA
1600mA / 1000 = 1,6A
I need a power supply that give me at leas 1,6 A.
Correct or not?