Potentiometer used as a light dimmer: AC application I will break them down into AC and DC applications. While a potentiometer can be used as a light dimmer, there are different applications and circuit configurations available. Different configurations of potentiometers as a light dimmer I shall cover these circuits in more detail in the rest of the article. It will need to replace the existing potentiometer in the light dimmer circuit. However, a note to be made is that a potentiometer by itself might not be able to replace existing light dimmer circuits already installed. These circuit configurations can include a microcontroller or be used without one. There are many different circuit configurations that a potentiometer can function as a light dimmer. Light Dimmers are circuits which are connected to lighting fixtures that give you the ability to adjust the brightness of the light from 0% to 100% by altering the power that is delivered to the lights.īut, can you use a potentiometer as a light dimmer? Yes, a potentiometer can be used as a light dimmer. Other than just varying resistance, the potentiometer can also vary voltage. This is why a potentiometer can sometimes be referred to as a Variable Resistor. Potentiometers are three terminal devices which have the ability to vary their resistance. You might be familiar with resistors and their ability to reduce current as well as voltage.īut, normal resistors have a fixed resistance which cannot be varied.
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