Brief Trimmer Potentiometer Trimpot Variable Resistor Voltage Divider Circuit Fragment

Trimpots (trimmer potentiometers) are resistors with 3 terminals.

Simple trimmer potentiometer trimpot component as voltage divider circuit fragment diagram by electronzap electronzapdotcom
Simple trimmer potentiometer trimpot component as voltage divider circuit fragment diagram by electronzap electronzapdotcom

2 of the terminals are the ends of a resistive element.

The third terminal is a wiper, that slides up and down the resistive element.

Therefore, you can vary the resistance to from just one end terminal, to the wiper, making a variable resistance.

Or, you can put a voltage across both far ends of the resistive element. Which gives a divided voltage at the wiper terminal. Giving you an adjustable voltage divider.

Video:

Brief Circuit Schematics with Short Video List of Pages

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