Transistor Circuits

NOR gate is a universal logic gate and it gives output HIGH only when all inputs are LOW; also it performs both OR and NOT operation together. This circuit uses two NPN transistors to implement a NOR gate. Truth Table for Logic NOR Gate: Input A Input B Output Y 0 0 1 0 1 […]

Logic OR Gate Circuit using Transistors is simple digital logic gate, it give HIGH output if any input is HIGH. We can make Logic OR Gate using two NPN transistor like BC547 and it also uses small current and is easy to build. Truth Table for Logic OR Gate: Input A Input B Output Y […]

Logic AND gate is a basic digital logic gate, as it gives high output only when both inputs are high. In this Logic AND Gate Circuit using Transistors is easy to make and this is a simple example of transistor logic gate. Truth Table for Logic AND Gate: Input A Input B Output Y 0 […]

NOT gate also name as inverter, it changes from 1 to 0 and 0 to 1 and we can also make Logic NOT gate circuit with one transistor. This is very simple and work with digital signal and it uses very less parts; moreover, output is opposite of input and it works fast and it […]