AND Gate in Terms of Transistor
The AND gate is one of the main building blocks of Digital Logic Circuits. Its operation can also be explained via the concept of transistors
In the above diagram, transistor will act as a switch. When we apply the voltage through a collector terminal, the voltage reaches to emitter terminal when base terminal voltage between 0 and collector voltage.
Let us take an example when both the inputs are 0. When the voltage is supplied through the collector terminal of transistor Q1, emitter terminal does not receive any input value because base terminal value is 0. Similarly, emitter of Q1 is connected to collector of transistor Q2, provides no current or voltage. Hence the emitter output of transistor 2 is 0 and as a result final output (Q) is also 0.
AND Gate
Logic gates are small digital switching circuit that determines the output of two or more inputted functions in Binary format. Logical ‘1’ means ‘True’ or ‘High’ in nature, whereas logical ‘0’ means ‘False’ or ‘Low’ in nature. Based on different logical operations, the output differs. There can be many inputs in a logic gate but there will be only one output. Each logic gate has its own truth table which represents all the combinations of input and output.
Table of Content
- AND Gate
- Operation
- Types
- Symbol
- Truth Table
- AND Gate in Terms of Transistor
- Applications
- Advantages
- Disadvantages
- Solved Example