Logic gates using transistor

Logic Gates using transistor

Earlier we see how to make Logic Gates using Switches and Symbols, Truth Table of Logic Gates. Now we see how to make logic gates using transistor. One more interesting thing is IC’s are made of logic circuits and logic circuits are made up of logic gates so basically IC’s have capacitors, resistor & transistors on chip for logical circuits, that’s why IC’s understand logic 1 & 0 as logic high and low only.

1) NOT Gate

Logic Gates - NOT Gate Using NPN Transistor
NOT Gate Using NPN Transistor

2) AND Gate

Logic Gates - AND Gate Using NPN Transistor
AND Gate Using NPN Transistor

3) OR Gate

Logic Gates - OR Gate using NPN Transistor
OR Gate using NPN Transistor
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