☑ How Trimmer Resistor Works

It is meant to be set correctly when installed in some device and never seen or adjusted by the devices user. A trimmer is a miniature adjustable electrical component.

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An example might be the feedback loop of an op amp in common mode.

How trimmer resistor works. An example might be the feedback loop of an op amp in common mode. For example they are used to control the volume in a radio. If you wanted a gain of two you might use a resistor divider with a two to one ratio.

If you wanted a gain of two you might use a resistor divider with a two to one ratio. When they are used as a variable resistance wired as a rheostat they are called preset resistors. The trimmer resistor is a calibration device used to correct trim the resistance of some other resistor.

A potentiometer or pot for short is also known as a variable resistor. It is meant to be set correctly when installed in some device and never seen or adjusted by the devices user. Variable resistors are used to dynamically change the resistance to control the current in a circuit and may also be used as a voltage divider.

Trimpots or presets are normally mounted on printed circuit boards and adjusted by using a screwdriver. The trimmer resistor is a calibration device used to correct trim the resistance of some other resistor. A trimpot or trimmer potentiometer is a small potentiometer which is used for adjustment tuning and calibration in circuits.

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