TRIAC AND ITS ADVANTAGES

TRIAC

• TRIAC is an AC switch with three terminals that lets current flow in both directions.
• A low-energy gate signal sets these off and makes them conduct.
• The name TRIAC comes from the letters triode for Alternating Current.
• The device is a thyristor and works in both directions. It is basically a diac with a gate input that controls when the device turns on.
• In TRIAC, Tri stands for the device's three connections, and ac stands for a device that controls alternating current. It is easy to find a triac with a 16-KW grade. In the field of power circuits, these are often used for controlling purposes.

Construction of TRIAC

IMAGE SOURCE

The following picture shows how a triac is put together:

• The general shape of a triac
• As we've already talked about, it's a three-terminal, four-layer device made up of two SCRs connected in inverse parallel, each having a gate terminal. It is doped in 6 places, and the gate makes an ohmic connection with both the N and P places. So, the conduction in the device can begin in either direction of the trigger pulse.

Let’s have a look at the electrical equivalent of the basic structure of a triac.
The electronic counterpart of a triac

Since the gadget works in both directions, the terms "anode" and "cathode" don't mean anything. In this case, the terminals are shown as MT1 and MT2, and the gate port is shown as G.

Advantages of TRIAC

• It's easy to put together because it only needs one switch for safety.
• Both positive and negative electricity can activate the triac.

Disadvantages of TRIAC

• In Triac, ratings are not as easy to find as they are in SCR.
• These don't work as well.
• It's not even at both ends of the waves when it fires.
• Switching that isn't equal makes it more likely to have troubles.
  
  

Uses of TRIAC

• It's used to deal with AC.
• It's used to control the lights.
• Electric engines are one place where triacs are used.

IMAGE SOURCE (THUMBNAIL)