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Triac working and simple explanation. By Yuvi - Study Point


Hey everyone, today we are going to learn about Triac in a simple or easy way.
So, without wasting any time lets get started.

What is Triac?
  • Triac is a semiconductor device which is widely used in switching applications & power controls.
  • In triac the SCR'S are connected in inverse parallel.
  • I have shown and elaborated the basic structure, electrical equivalent circuit & schematic symbol of the triac in my lecture whose link and video is given in the ending.
  • Now, let's start learning about triac by first knowing its introduction.
Introduction & information about TRIAC.
  • Traic is a three-terminal A.C switch which triggers into conduction mode when we apply low energy signal in its gate terminal.  
  • And how triac is different from SCR? 
How TRIAC differs from an SCR?
  • Let's study about it, SCR will conduct only in one direction when it gets turned on but Triac can conduct in either direction in the same circuit when it is turned on.
  • And triac can be triggered into conduction mode by a positive or negative gate signal but for the SCR the cathode is kept at negative and the anode at positive. 
  • Triac is a three-terminal, four-layer, bidirectional semiconductor device which controls the A.C power.
  • But SCR controls the D.C power or we can say that it controls the forward-biased half cycles of A.C in a load.
  • And because of Triac's bidirectional properties, it is mostly used in the power electronics field for control purpose.
What does TRIAC mean?
  • Triac means triode for alternating current or we can say that Tri indicates the three-terminal because Triac is a three-terminal device and A.C indicates that the device can control the alternating current or can conduct in either direction.
  • And the Triac's which has a rating of 16 kW are mostly available in the market.
  • If you want further more explanation about the Triac with its construction, working, etc. Then please go and check out my channel and this video. 
The video and link of TRIAC.


https://youtu.be/l5_6PmK_bDw

{ PLEASE GO AND CHECK OUT THIS VIDEO AND MY CHANNEL FOR FURTHER MORE EXPLANATION. }

 Thank you!

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