|08-01-09, 10:56 AM||#1|
Taking over the universe
Join Date: Dec 2007
12v to 3.2v drop using resistor?
I was looking at putting in a few L.E.D's in different location of the case to light up some components each L.E.D going to be 5mm at 0.02 amps which is going to be the current drop.
Now going to use a current limited resistor at 1/4 watt instead of a voltage regulator because L.E.D's are current controlled and not voltage controlled.
My question is how many ohm's sure the resistor be was going to go with 470 ohm's or 560ohm's, don't what it to be to bright, just to light up the waterblocks and do under light for the bottom of the case and for some back lighting. going to power off the 12v side due to installing some lighted flip switchs in front to controlled light's and ETC. Was also going to do a RGB LED Controller for two modes one for on always and other mode to flash with music.
Asus P6T, Intel I7 965 extreme 3.2 ghz
12gb CORSAIR DDR3 1600
2X 256gb Samsung SSD Raid 0, 1x 1.5tb seagate
2x XFX 4890 Crossfire
Visiontek 650 TvTuner, Sound X-Fi Titanium Fata1ity
LG GBW-H20L Blu-ray, Samsung SH-S203N DVD-RW
OCZ ProXStream 1000w, Case Coolermaster HAF 932
swifttech 655 pump, Apogee GTZ Ci7, MCR220-QP,
ek-fc4890 x2 video waterblocks Antec vers elite disply
Sunbeam 4ch 20w fan controller
MSI K9A2 Platinum, AMD 9950 X4 Phenom
8gb dominator 1066MHZ
2x500gb Western digital raid 0, 2x1tb Western digtal
1x EVGA 250 videocard
hauppuage 1600 TV Tuner, Creative X-FI
LG GBW-H20L Blu-ray, Silverstone 650w PSU
Netgear wifi a/b/g/n card