![]() ![]() In this project I used the LM393 (dual comparator IC) for the zero crossing events detection. Q1 and Q2 base terminals are respectively connected to Arduino pin 9 and pin 10 through 1k ohm resistor. I’m using the KSC2383 in my hardware circuit! ![]() The two transistors Q1 and Q2 are NPN type, each one can be KSC2383 ( datasheet) or equivalent. The diodes D3, D4, D5 and D6 are simple diodes, each one may be 1N4007 or 1N4148. ![]() The LM7808 gives a regulated 8V from an external power source of 12V.Įach KMB472-101 transformer is connected to the LM7808 regulator output (8V) through a resistor of 1 ohm. The KMB472-101 transformer works with voltage of 8V, so to get 8V I used LM7808 voltage regulator. TR1 and TR2 are identical, their full name is: KMB472/101 (KMB472-101) from YHDC ( datasheet). The two transformers TR1 and TR2 are pulse transformers which are used for triggering the 2 thyristors T1 and T2. ![]() The diodes D1, D2 and D7 may be 1N4007 or equivalent. In this project I used TYN1225 thyristor ( datasheet) for T1 and T2. Transformer TR3 is a step down transformer that reduces the 220V into 12V (rms values) which is the same as DC motor nominal voltage. The input voltage of the circuit is 220/230V 50Hz alternating current (AC) from home outlet (single phase). ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |