Skip to main content
Glite Dictionary
💡 An electronic part 🧬 A thyroid hormone
triac

triac

1 9.1
A small electronic part that controls current flow in both directions in a circuit
  • noun
  • /ˈtraɪæk/
  • Specialized
: triac
  • This device features a triac, allowing it to manage power flow in both directions.

Examples

  • Maybe the motor has blown and it took the triac out and the resistor.

  • I searched the net and found that a lot of people do this by controlling A triac an optotriac with the Arduino.

  • So everyone, not just the DC side, the AC side as well, everything to do with this triac I've been unsoldering and checking.

  • When they went to the SS models, they began to use a triac (two silicon-controlled rectifiers with a common gate) to modulate how much of each half-cycle of AC current was fed to the motor.

    Blog text (6)

  • The light dimmer uses a triac to control the brightness of the bulb.

  • In the circuit design, we incorporated a triac for efficient current switching.

Synonyms

thyristor
vstriac
  • Specialized
1 8.5

An electronic part that acts like a switch for electric current

controls electrical flow in both directions rather than just allowing or blocking it

Surface Forms

triac singular
triacs plural

Etymology

Triac comes from the name TRIode for Alternating Current, where tri- suggests 'three' and AC means 'alternating current'. So a triac is a device that can switch AC power in both directions, which is why it is used to control lights and motors.