Circuit Diagram Of Digital Potentiometer

Circuit Diagram Of Digital Potentiometer A potentiometer is a simple mechanical device that comes in many different forms. It provides a variable amount of resistance that changes as you manipulate it. The examples in this article uses a potentiometer with a twisting shaft, one of the more common versions of a potentiometer you will find.

That means they are difficult to use in place of a potentiometer which might be sitting anywhere in a circuit. If one end of the pot needs to be to ground and current only flows in one direction through the pot, then it will be a lot more straightforward. Way to make a simple digital Potentiometer Searching I found that there are digital Look for a digital potentiometer with 1024 steps. Another solution is to use two potentiometers in series. For example, one pot could have a span of 100kΩ (course setting) while another pot could be 1kΩ (fine setting). You can also replace the course setting pot with high precision fixed resistors to span different test temperatures.

2 Digital Potentiometer Circuits Explained Circuit Diagram

Potentiometer as a Rheostat. A potentiometer and a rheostat may seem similar but are not. Rheostat is one of the many applications of a potentiometer. Let's see what a rheostat is and how it differs from a potentiometer. What is a Rheostat? A device that is used to vary the resistance in a circuit is called a Rheostat.

Digital potentiometers are just like any analog potentiometer with three terminals with only one difference. Whereas in analog one you have to manually change the wiper position, In case of digital potentiometer wiper position is set according to the signal given to potentiometer using any microcontroller or microprocessor.

Circuit and Code Example Circuit Diagram

The digital potentiometer It will show how their functions, features, capabilities, and options can be used to simplify circuits, make circuits processor compatible, and reduce or even eliminate the need for bulky, less-reliable mechanical potentiometers. the digipot's internal topology consists of a simple serial string of resistors