Triacs Belong To The Thyristor Family And Are Closely Related To Silicon-Controlled Rectifiers (Scr). However, Unlike Scrs, Which Are Unidirectional Devices (I.E. Can Conduct Current Only In One Direction), Triacs Are Bidirectional And So Current Can Flow Through Them In Either Direction.
Another Difference From Scrs Is That Triacs Can Be Triggered By Either A Positive Or A Negative Current Applied To Its Gate Electrode, Whereas Scrs Can Be Triggered Only By Currents Going Into The Gate. In Order To Create A Triggering Current, A Positive Or Negative Voltage Has To Be Applied To The Gate With Respect To The A1 Terminal (Otherwise Known As Mt1).
Once Triggered, The Device Continues To Conduct Until The Current Drops Below A Certain Threshold, Called The Holding Current.
The Bidirectionality Makes Triac Very Convenient Switches For Ac Circuits, Also Allowing Them To Control Very Large Power Flows With Milliampere-Scale Gate Currents. In Addition, Applying A Trigger Pulse At A Controlled Phase Angle In An Ac Cycle Allows One To Control The Percentage Of Current That Flows Through The Triac To The Load (Phase Control), Which Is Commonly Used, For Example, In Controlling The Speed Of Low-Power Induction Motors, In Dimming Lamps And In Controlling Ac Heating Resistors
Two Modes Of Led Panel Light Dimming:
Mobile App Based Dimming- The Customer Sitting In Any Part Of The Room/ House Can Control The Intensity Of The Light By Using His Mobile App
The Manual Mode Facilitates Control By Varying The Triac Manually Through The Knob Provided In The Control Unit.
Optional:
Wifi App Based Dimming
Occupancy Based Dimming
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