What is Dimmer? How the Dimmer Circuit Works and How It's Built

The Dimmer circuit is a power control circuit powered by alternating current. They are widely used for brightness control in lighting systems. In addition, they are used in various electronic devices according to the needs such as temperature control and engine speed control.

What is Dimmer?

Dimmers are devices that are usually used to adjust brightness in lighting systems. Dimmer circuits change the waveform of the voltage applied to lighting systems, adjusting the brightness of the light. Although Dimmer circuits are used in a wide variety of places such as heaters and universal motors, the term dimmer is usually used for lighting control circuits. In 1896, Granville Woods patented the safe dimmer circuit with a circuit structure that transferred the desired amount of energy to the load and eliminated the rest of the circuits. GYfKw In today's specialist lighting industry, the change in light intensity provided by dimmer is called dampening. Modern dimmers are built with semiconductors instead of variable resistors because the efficiency of semiconductors is much higher. When there will be heat loss and stress induction in variable resistors, their efficiency is lower than in semiconductor materials. Switching of semiconductor or solid state dimmers occurs between low-resistant transmission and high-resistant obstruction. These switchings expend very little load when used in a system with controlled loads.

Dimmer Circuit Operating Principle

Dimmer circuits have circuit elements such as resistance, adjusted resistance, deacon, triage and capacitor, except for the lamp or other stimulus that is required to be controlled. Adjusted resistance in the circuit (usually used a ponciometer) and settings such as brightness level and engine speed are checked. The most critical circuit element in the circuit is triage. The triage is put into a trigger state and the principle of operation of the circuit is based entirely on this. Let me talk long and long about this process: When the resistance value of the posiometer changes, the phase angle of the current passing through the dialysis changes with the help of the capacitor. The deacon provides the necessary pulse signals to trigger the triage. When the triage is triggered, control of the load connected to the circuit (bulb/motor, etc.) is provided.

How to Connect Dimmer Socket to City Network?

The Dimmer connection, as we call it, has a very simple connection, what you need to pay attention to when connecting the Dimmer circuit is to connect the phase cable from the live/live connection line with the word "L" written on it. The other connection cable to the lamp is connected to the other clinger, completing the dimmer connection.

What are the Advantages of Dimmer Circuit?

The Dimmer circuit can be used to create a pleasant atmosphere, dimmer circuits, which are usually seen in foreign films and then become widespread in newly made houses, are also used to save money, thanks to the light you will turn on enough to meet your need, you do not use more than necessary. With Dimmer circuits, you can create beautiful reading rooms, and thanks to the lights you will adjust to your eye taste, you can create a pain-free reading environment and ensure your reading process in a comfortable environment.

Dimmer Circuit Construction

You can use two different circuit diagrams, AC and DC, directly, or you can use it by purchasing a pre-made circuit.

Dimmer Circuit Bill of Materials

  • 10K Resistance
  • 500K Posiometer
  • 100nF Capacitor
  • BT137 Triage
  • DB3 Deacon

The circuit diagram seen below is a dimmer circuit for 220V. That is, a Dimmer circuit with triage that works with AC (Alternating Current). The circuit symbol you see in the circuit called L1 represents a load. This load lamp can be a circuit element, such as an engine. 4Y9D2 The circuit in this image is the 12V Dimmer circuit. So it's a DC Dimmer circuit. You can do this application with Arduino, you may not use many materials in a circuit designed from scratch.