Xor Gate Circuit Diagram Using Transistor. In which we have used two npn transistors 4 diodes and the resistor between diode bridge and npn is used in series configuration because bjts operates on input current not input voltages. Construction and working mechanism of xor gate xor gate using bjt and diodes.
The logic low voltage is approximately 0v but the sink current limited by the collector resistance 10k ohm. Thus an approximate logic high voltage v h 0 6v v ce is available at output terminal y. What you need a breadboard a bunch of 5k and 10k resistors and transistors a led you can use any npn type transistor for example 2n3904 bc547 bc548 bc549 etc these are basic circuits so they can be improved with diodes for reverse voltage protection for example or can be simplified xor xnor gates.
If you look at the circuit diagram for any logic gate you will notice that these gates share a lot of the same building blocks.
The xor gate we just built is a neat application of this idea. Make an xor gate out of transistors. Schematic of xor gate using diodes and bjt npn transistor is given below. Hi guys in this tutorial i will show you some npn transistor based logic gates.
