NOT Gate using a transistor

with an NPN BJT (bipolar junction transistor) and two resistors you can create a Not gate.

BJT not gate.jpg

Logic Gates – NOT gate

A NOT gate (Inverter), is a single input logic gate. The output is simply opposite to that of the input.

NOT gate logic tableNOT gate (inverter)

You can simply create a NOT gate by using an NPN transistor and two resistors as shown here: ‘’


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