What is scr or Daic. traic and working

Question

Accepted Answer

SCR and TRIAC are semiconductor devices used for switching and controlling power in electronic circuits.

SCR stands for Silicon Controlled Rectifier and is a four-layer PNPN semiconductor device used for power control applications.
TRIAC stands for Triode for Alternating Current and is a three-layer PNPN semiconductor device used for AC power control applications.
Both devices work by controlling the flow of current through them using a gate signal.
SCR is a unidirectional device, meaning it can only control current flow in one direction, while TRIAC is a bidirectional device, meaning it can control current flow in both directions.
SCR and TRIAC are commonly used in applications such as motor control, lighting control, and power supplies.

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