# Voltage

How to make 12-voltage SMPS

This is the 12-voltage SMPS circuit diagram. this is an easy circuit. used here KLY MK-21C Universal Power as the MOSFET. first makes ac 220 to Dc voltage 350. then the dc voltage goes to the transformer using this KLY MK-21C Universal Power. the transformer has 140 turns for the primary side and 14 turns for the secondary side. 14 turns also make ac voltage. in the secondary used one diode and one capacitor.

How to make 5 voltage

This is a circuit diagram to make strong 5 voltage. normally we use 7805 to make 5 voltage for audio Bluetooth cards or others. but 7805 makes 500ma amperes. but sometimes we need 2 amperes. then we can use this circuit. this circuit can make 6 amperes. TIP41c is an NPN transistor. this transistor runs with 100 volts and 6 amperes. the transistor will make hot. for this, we use a heatsink.