A human touch can do magic! This Simple Human Touch Sensor Circuit with Transistor shows how a tiny finger touch can switch ON a light. No switch, no button just a skin current makes it work. It is a cool and educational mini project for learners. Circuit Working: Parts List: Component Name Specification Quantity Resistor […]
Transistor Circuits
Logic XNOR Gate Circuit with Transistors
XNOR gate is one of the basic logic gates. It gives HIGH output when both inputs are same. If both inputs are 0 or both are 1 then output is 1. If one input is 0 and other is 1 then output is 0. It is also called an “Equivalence Gate”. This Logic XNOR Gate […]
Logic XOR Gate Circuit with Transistors
This is project is for Logic XOR Gate Circuit with Transistors It uses transistors and resistors. It shows how XOR logic works. Output is high only when inputs are different. Good for students and beginners to learn digital logic. Truth Table for Logic XOR Gate: Input A Input B Output Y (A ⊕ B) 0 […]
Logic NOR Gate Circuit with Transistors
NOR gate is a universal logic gate. It gives output HIGH only when all inputs are LOW. It performs both OR and NOT operation together. In this circuit two NPN transistors are used to make NOR logic. Truth Table for Logic NOR Gate: Input A Input B Output Y 0 0 1 0 1 0 […]
Logic OR Gate Circuit using Transistors
Logic OR Gate Circuit using Transistors is simple digital logic gate. It give HIGH output if any input is HIGH. We can make Logic OR Gate using two NPN transistor like BC547. It uses small current and is easy to build. Truth Table for Logic OR Gate: Input A Input B Output Y 0 0 […]
Logic AND Gate Circuit using Transistors
Logic AND gate is a basic digital logic gate. It gives high output only when both inputs are high. In this Logic AND Gate Circuit using Transistors is easy to make. This is a simple example of transistor logic gate. Truth Table for Logic AND Gate: Input A Input B Output Y 0 (LOW) 0 […]