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Would This Circuit Work For My Hdd?

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#1 Siege36


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Posted 10 April 2008 - 11:22 PM

Just wanted to make sure that this circuit will work for my HDD which is 5V before i wire them all together

the circles are blue LEDs. sorry i didnt want to get to fancy with the drawing.

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#2 ausmods


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Posted 11 April 2008 - 01:13 AM

The wiring looks fine, youll just have to check the value of the resistor... I would work it for you, but im far too lazy.. Its just a simple application of ohms law... You dont know the resistance, you have 5v, and you want 15-20mA running though the LEDs (Check that one, cause it depends on the LED's you have)

I do know though that if you connect the LED's to 12v a 100 ohm resistor will work fine.

#3 jopotus


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Posted 11 April 2008 - 06:58 AM

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do it like this. it should work best.
resistors are 27 ohm 1/8 watt.

resistor calculator

Edited by jopotus, 11 April 2008 - 07:00 AM.

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