IRF830 traic - how it works_tutorial

IRF830

1) It's a type of transistor only 

2) Its mainly used for dimming the ac appilances

    for eg light,fan...

3) i dont want to explain deeply ,it will confuse you

4) pin(1) gate is a trigger pin ,when the trigger pin       is triggered by some minimum voltage either by       audrino's analog pin using ic(4n32) or some             other optocoupler.

5) the triac will activated .

6) the property of IRF830 ,drain(2) is a negative            pole and source(3) pin is a positive pole.

7) but the circuit is connected by negative for               source(3) and positive for drain(2).

8) because the traic will not make a closed loop           when there is no power supply(by its oposite           pole).

9) i done a dimmer light circuit using IRF830