ElectroMaster
Administrator
ElectroMaster submitted a new article:
Computer Voltage Monitor - This is an illustrated tutorial on building a voltage monitor for fan control circuits - rheostats,
Read more about this article...
Computer Voltage Monitor - This is an illustrated tutorial on building a voltage monitor for fan control circuits - rheostats,
This is an illustrated tutorial on building a voltage monitor for fan control circuits - rheostats, linear regulators like the LM317/350, and some PWM circuits. It requires a single chip, and can drive 10 LEDs with even divisions from 0V to 12V.
View attachment 53434
The LM3914 is a chip made specifically for driving LEDs based on voltage. A few notes about the circuit above:
- Pin 9 (the Mode pin) sets whether dots or bars are used. We've tied it to +12V so it'll be on...
Read more about this article...