Working of the Circuit
Here in the above diagram, there are two transistors named Q1 and Q2, which are connected in a series configuration. The collector terminal of Q1 is connected with Vcc and also with the output terminal. The emitter of Q1 is connected with the collector of Q2, which makes the connection in a series configuration. The emitter of Q2 is connected with the ground which completes the entire circuit.
Lets take an case when the inputs A and B are 0. In this case, transistor will act like a switch and terminates the connection between collector and emitter. When 5V supply is ON, it reaches the collector terminal directly of the first transistor. The collector terminal is connected with output, so 5V supply directly goes to the output. Hence the output will be HIGH.
NAND Gate
Logic Gates are one of the most important topics in electronics, especially digital electronics. The concept of logic gates relies on the concept of Boolean functions. Logic gates take one or multiple binary values as input and return one binary value as output after doing the logical calculation on them. There are several kinds of GATEs available in Digital Electronics, some of them are known as basic gates, and some of them are known as universal gates.
A NAND gate falls under the category of Universal gates because the NAND gate can implement any Boolean function without the help of basic gates and also calculate the results of logical inputs without the help of any other logic gate.
Table of Content
- What is a Logic Gate?
Symbol of AND Gate- Truth Table of AND Gate
- NAND Gate in Terms of Transistor
- Applications of NAND Gate
- Advantages of NAND Gate
- Disadvantages of NAND Gate