Alternate Current Driver

COMPONENTS	Quantity
Resistors (1/4W, 5% carbon):
2K2 red red red	1
10K brown black orange	1
180K brown violet yellow	1
150nF/400V dipped polyester	1
47nF/630V dipped polyester	1
0.22uF/250V AC dipped polyester	1
Potentiometer 250K	1
Triac 2N6075 or BT136-500D	1
Diac (HT-32)	1
Choke coil (100uH)	1
Terminal Blocks	2
2A or 3A fuse + holder	1
3019 PCB	1

   Alternate Current Driver

1. AC motor drives can be broadly categorized into two types, thyristor based and transistor based drives. Thyristors possess the capability of self-turn-on by means of an associated gate signal but must rely upon circuit conditions to turn off whereas transistor devices are capable of both turn-on and turn-off. 
2. Because of their turn-off limitations, thyristor based drives must utilize an alternating EMF to provide switching of the devices (commutation) which requires reactive volt-amperes from the EMF source to accomplish. 
3. This AC drive is build to control the speed of water pump so that we can manipulate the amount of water that entering the water tank.