Triac Dimmer Circuit Diagram. When sw1 is closed gate current is applied to the triac from the battery supply v g via resistor r and the triac is driven into full conduction acting like a closed switch and full power is drawn by the lamp from the sinusoidal supply. The circuit diagram presented above is an classic illustration of a dimmer switch where a triac continues to be employed for managing the depth of light.
Ac 100w lights triac dimmer circuit. We will use it in the dimmer circuit. This is the form of circuit that is widely used in circuits for incandescent light dimmers in domestic applications.
We can dim the lamp up to 100 watts.
When sw1 is closed gate current is applied to the triac from the battery supply v g via resistor r and the triac is driven into full conduction acting like a closed switch and full power is drawn by the lamp from the sinusoidal supply. This is a simple ac triac dimmer circuit. We can dim the lamp up to 100 watts. This circuit works great as a household light dimmer all parts could be fitted at the rear of a wall switch board and in case the load happens to be below 200 watts the triac could work without depending on a heatsink.
