Posted by Circuits Arena on Tuesday, 6 January 2015
Transistor Code Locker Circuit Diagram is the artlcle explaining Transistor Code Locker : The circuit is nothing however a straightforward semiconductor switch with a relay at its collector as load. 5 s...
Transistor Code Locker :
The circuit is nothing however a straightforward semiconductor switch with a relay at its collector as load. 5 switches (S0 to S4) organized nonparallel with the present limiting electrical device R2 is connected across the bottom of the semiconductor and positive provide rail. Another 5 switches (S5 to S9) organized in parallel is connected across the bottom of the semiconductor and ground. The semiconductor Q1 are going to be ON and relay are going to be activated as long as all the switches S0 to S4 area unit ON and S5 to S9 area unit OFF. organize these switches in a very shuffled manner on the panel which it. The relay are going to be ON as long as the switches S0 to S9 area unit either OFF or ON within the correct combination. The device to be controlled mistreatment the lock circuit is connected through the relay terminals. electrical device T1, bridge D1, condenser C1 forms the facility provide section of the circuit. Diode D2 could be a freewheeling diode. electrical device R1 ensures that the semiconductor Q1 is OFF once there's no association between its base and positive provide rail.
fig.Transistor Code Locker Circuit Diagram.
