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Can SCR be replaced by TRIAC?

Anonymous

∙ 12y ago

Updated: 4/28/2022

Yes since the SCRs act as the real thyristors

Wiki User

∙ 12y ago

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Q: Can SCR be replaced by TRIAC?

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Continue Learning about Electrical Engineering

Contrast the scr and the triac?

Essentially an Scr is a solid state switch that will only allow current to flow in one direction. A triac is essentially two scr's in Anti- parallel that allows current to pass in both directions.

Why antiparallel SCR are preferred over TRIAC?

For power control of inductive load.They can be successfully used for resistive load as well.

What is LED characteristics curve?

A: Any device whether it be diode, led, scr, triac and so forth has characteristic of current/voltage behaviour as these I/v are varied

What is an electrical switch that opens and closes under the control of another electrical circuit?

If it is a physical switch, this is called a "relay" or a "contactor". If it is a semiconductor device, it is typically a triac, SCR or a thyristor.

What is the difference between a DIAC and a TRIAC?

A DIAC is simply a diode that breaks down at predictable voltage.A TRIAC is a 3 terminal device that will conduct whether the anode is at a positive or a negative potential, controlled by a gate.Another answerThey are AC versions of the SCR and diode respectively. Do you need more details?

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Related Questions

What is the difference between triac and scr?

== == == ==

State two advantages of a triac as compared to an SCR?

triac act as a ac contactor

How does a triac differ from SCR?

An SCR is a rectifier and can only conduct in one direction (half wave).A Triac can conduct in both directions (full wave).

Contrast the scr and the triac?

Essentially an Scr is a solid state switch that will only allow current to flow in one direction. A triac is essentially two scr's in Anti- parallel that allows current to pass in both directions.

Is a diode controllable?

The SCR and TRIAC are essentially controlled diodes.

Where does a SCR differ from a power transistor in operation?

thyristor can be scr or triac scr is strictly dc a triac is back to back scr's with a common gate two scr's back to back can be gated independently scrs cost less than triacs an scr can be combined with a full wave bridge to make an equivalent to a triac but this gives an additional 1.5V forward voltage drop

Why we don't use triac in case of ac controlled rectfier rather than scr?

A TRIAC does not have a symmetrical turn-on point in the opposite quadrant. This will introduce a DC bias, which you probably don't want. You can use an SCR, and then add diodes to allow it to operate in the opposite quadrant, or you can use two SCR's. Alternatively, you can use a DIAC in the TRIAC's gate circuit to balance the turn on point.

What is the major disadvantage of a free-running oscillator used to trigger an SCR or TRIAC?

One major disadvantage of a free-running oscillator is that it may not synchronize properly with the AC line frequency, causing timing errors and potential malfunction of the SCR or TRIAC. This can lead to inefficiencies and erratic behavior in the circuit.

What is the name of the scr or triac triggering system that triggers the output device at the same point on each ac cycle?

Diac

Why antiparallel SCR are preferred over TRIAC?

For power control of inductive load.They can be successfully used for resistive load as well.

What is LED characteristics curve?

A: Any device whether it be diode, led, scr, triac and so forth has characteristic of current/voltage behaviour as these I/v are varied

What is an electrical switch that opens and closes under the control of another electrical circuit?

If it is a physical switch, this is called a "relay" or a "contactor". If it is a semiconductor device, it is typically a triac, SCR or a thyristor.

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