Need Links to tutorials...
Thank you for taking time to read and reply to my question regarding the fan controller. As I mentioned earlier, I already build a fan controller using rheostats for my computer, and it's been running my fans for more than 6 month now without any problems. The power consumption of my fans does not exceed 3 Watts per fan. Each fan is attached to a dedicated rheostat that is ratted at 15 Watts so this project is relatively safe. Besides, I have a good Power Supply (Antec Safe Power 450Watts with overload, temperature, short circuit, over voltage and over current protections). I appreciate your suggestion regarding temperature controlled fans, but this is not what I want to do at this time. I am interested in building a fan controller with a voltage indicator. My obstacle at this time is the lack of information about the LM3914 CHIP. I looked at the technical data of the LM3914 and I still did not obtain enough information about the chip such as information regarding Voltage and Current Limitation through-out particular pins of the chip. The example circuits provided in the technical data are not fully explained (ex. Why is there a 3.3K Ohm resistor attached to Pins 4 through 6?? [No explanation what’s so ever]). The technical data sheet of the LM3914 CHIP probably contains enough information for an expert, but not for an average Joe who is looking at it for the first time.
Does any one know of any good links where information regarding the LM3914 CHIP can be understood by NOOBS and not just Experts and Pro’s? Or links to a tutorial for a voltage regulator?
Thanks,
Andrew