As described above, potentiometers and rheostats are basically two approaches to the same problem. For both, the end result is the same, i.e. reducing voltage through a circuit. For a 120mm fan, you ...

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Download the full article as a .PDF, sponsored by Analog What are digital potentiometers, and how are they used? Digital potentiometers are integrated circuits that implement a resistive ladder and a ...

Adjusting the volume dial on a sound system, sensing your finger position on a touch screen, and knowing when someone’s in the car are just a few examples of where you encounter variable resistors in ...