What is TRIAC?
TRIAC(Triode for Alternating Current) is a semiconductor device broadly utilized in power control and exchanging applications. It finds applications in exchanging, stage control, chopper plans, splendor control in lights, speed control in fans, engines, and so forth. The power control framework is intended to control the conveyance level of AC or DC. Such power control frameworks can be utilized to change the capacity of machines manually or when temperature or light levels go past a preset level.
TRIAC Symbol
It is identical to two SCRs associated in opposite lined up with the gates connected together. Subsequently, it capabilities as a Bidirectional switch to pass the ongoing in the two directions once the gate is triggered. It is a three-terminal gadget with the Principal terminal1 ( MT1), Fundamental terminal 2( MT2), and a Door. The MT1 and MT2 terminals are utilized to associate the Stage and Nonpartisan lines while the Entryway is utilized to take care of the setting off beat. The gate can be set off either by a positive voltage or negative voltage.
At the point when the MT2 terminal gets a positive voltage concerning the MT1 terminal and the gate gets a positive trigger, then at that point, the left SCR of the TRIAC triggers and circuit finishes. Be that as it may, in the event that the extremity of the voltage at the MT2 and MT1 terminals is switched and a negative heartbeat is applied to the Entryway, then the right SCR of TRIAC conducts. At the point when the gate current is taken out, the TRIAC turns off. So a base holding current should be kept up with at the entryway to keep the TRIAC leading.
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