Dimmer Circuit Using Triac And Diac. Ac light dimmer circuit using triac and diac update from the previous circuit operation of the circuit. Triac is a semiconductor device belonging to the family of thyristors.
A basic power control circuit using a triac and diac is shown in fig. The time delay after which the diac fires decides for how much time the triac remains switched on during each cycle of the phase. Using a basic design such as that shown in fig 6 4 1 adjustment of the power output is possible by.
This light dimmer circuit is built with various electrical and electronic component s like resistors r1 68 kilo ohms r2 280 kilo ohms and r3 10 kilo ohms variable resistors vr1 100 kilo ohms and vr2 200 kilo ohms capacitors c1 c2 and c3 0 33 uf 400v triac is bt136 and diac is er900.
A basic power control circuit using a triac and diac is shown in fig. The diac gains its name from the contraction of the words diode alternating current. A basic power control circuit using a triac and diac is shown in fig. Then this charging voltage will control the works of triac.
