Those who want to have the
power supply circuit for use in experiments such as logic circuit and/or the Microprocessor types that use voltage size 5 volt And the amount of current consumption very much. This circuit will respond your needs did well.
Due to this circuit is very simple with the IC-LM323K (or LM123 or LM223) only one. But the can supply 5V fixed output voltage, and can be connected load current up to 3 Amp.
In sometimes friends have power supply 12V 3A , but want Voltage 5V 3A for digital
Circuit. This circuit can meet the demand of friends get , by it uses normal electronic part and have 7805 integrated circuits perform to control Voltage 5V Regulate alone it gives current get just 1A. then must have an assistant is transistor MJ2955 perform enlarge current tallly go up be 3A besides. When be born over load or shot circuit as a result still have LED1 bright warn with. And still make Q2 – BD140 work cause Q3 – MJ2955 stop work with. The circuit then safe have no a problem friends may like this circuit. Because the equipment seeks easy ,