Switch To Potentiometer Wiring Diagram

The only connection is mechanical.

Switch to potentiometer wiring diagram. The ground is all the way off terminal 2 is the switch itself and terminal 3 is the switch turned all the way up. To use the potentiometer as a rheostat only two pins are used. Wiring illustration for using a potentiometer as a rheostat. They re on the same shaft so the switch gets closed as the wipers on the potentiometer wafers start to move away from one end of their travel.

Lessons in electric circuits volume 1 chapter 2. Keep that in mind and have a look at the following three examples on how to wire a potentiometer. If it helps think of a potentiometer as a dimmer switch. If you need a simple resistor that you can change the resistance of you only need two pins.

Instructions for potentiometer wiring. A potentiometer is almost always used to throttle an input signal so that it can be adjusted. The above image shows a simple circuit to dim an led. Dpdt means the switch has two separate poles or sides to it.

One outside pin and the center pin. A push pull pot in its most basic definition is a potentiometer attached on top of a switch. We refer to the switch as a dpdt double pole double throw switch. When a potentiometer is used as a voltage divider all three terminals are wired separately.

The middle pin and one of the side pins. The potentiometer can work as a rheostat variable resistor or as a voltage divider. For this experiment you will need a relatively low value potentiometer certainly not more than 5 kω. Using the ptr902 only as a potentiometer would be unusual because of the detent at one end of the rotation but you d get used to it.

Ohm s law schematic diagram. The position of the wiper determines how much resistance the potentiometer is imposing to the circuit as the figure demonstrates.