Construction of TRIAC
The construction of TRIAC is shown in below. It incorporates four layers as well as six doping regions. The planning of its gate terminal should be possible with an Ohmic contact utilizing two regions specifically the P region and N region so this device can initiate through both the polarities. Despite the fact that it is a bidirectional device, where the current and voltage of this can be indicated with MT1 like the reference to lessening confusion.
In case of SCR, the terminals of the TRIAC can be meant with MT1 and MT2 like an anode and cathode, and the gate terminal can be addressed through ‘G’ like the thyristor. The door terminal ‘G’ is associated with both P2 and N4 regions through a metallic contact and it is near the MT1 terminal.
The association of MT1 should be possible to both the locales of P2 and N2 though MT2 can be associated with the areas of both P1 and N3. Consequently, the two terminals like MT1&MT2 are associated with both the districts of P and N of the gadget. In this way, the ongoing stream between these two terminals can be chosen through the layers in the device.
MT2 is associated with positive by the gate open when contrasted with MT1 for a TRIAC which is associated in forward biased. Accordingly, TRIAC works in the mode of forward blocking until the voltage across the TRIAC is low as compared with forwarding break overvoltage. Similarly, the MT2 terminal is made negative when a TRIAC is associated backward predisposition concerning the MT1 terminal through entryway open, then this gadget works in the method of opposite obstructing mode. A TRIAC can be made conductive through either positive in any case negative voltage on the gate terminal.
TRIAC
We know that a unidirectional device like a SCR incorporates the characteristics of the reverse blocking current since it stops the progression of current in a reverse-biased state however for a few applications, this sort of current control is essential, particularly in AC circuits. So this can be accomplished through SCRs, where the association of two SCRs ought to be finished in enemy of lined up for controlling over both positive as well as bad information half cycles. However, this game plan can be changed through a unique semiconductor device called TRIAC, used to accomplish bidirectional control. This device controls the air conditioner unequivocally and every now and again utilized in controlling the speed of the engine, AC control devices, AC circuits, light dimmers, pressure control systems, and so on.
In this Article We will be Going Through TRIAC (Triode for Alternating Current), We will go through the Types of TRIAC, Characteristics of TRIAC, How to Trigger the TRIAC, TRIAC Dimming and at last we will Conclude our Article With its Applications, Advantages, Conclusion and Some FAQs.
Table of Content
- Construction
- Triggering of TRIAC
- Types
- TRIAC Dimming
- Advantages
- Disadvantages
- Applications
- TRIAC Vs Thyristor