NOR Gate using Transistors
₹150.00
In StockA NOR gate using transistors is a basic digital logic circuit that outputs HIGH (1) only when all inputs are LOW (0). It’s built by combining an OR gate followed by a NOT gate, using simple NPN transistors.
Description
The NOR gate (NOT-OR) is a fundamental logic gate used in digital electronics. It gives a LOW (0) output if any of its inputs are HIGH (1). If all inputs are LOW, the output is HIGH.
Building a NOR gate using transistors helps you understand how logic gates function at the hardware level. The circuit works by using NPN transistors to detect the presence of HIGH signals at the inputs. If either transistor receives a HIGH signal at its base, it conducts, pulling the output LOW.
If both inputs are LOW, neither transistor conducts, and the output is pulled HIGH through a pull-up resistor.
Applications:
1.Digital Circuits
1.Used in logic control, decision making, and microprocessor systems.
2.Combinational Logic Design
1.NOR gates are universal gates – any logic gate (AND, OR, NOT, XOR) can be built using only NOR gates.
3.Educational Projects
1.Useful for teaching logic gate basics with discrete components.
4.Simple Alarms and Control Circuits
1.NOR logic can control outputs based on multiple inputs.
-
- A rain alert system with an LCD display and buzzer, controlled by an 8051 microcontroller, is designed to detect rainfall and provide real-time notifications. The system uses a rain sensor to detect moisture or rainfall, and the microcontroller processes the sensor data. When rain is detected, the 8051 triggers a buzzer to alert the user audibly and displays the rain status on an LCD screen.
-
A Battery High-Low Monitor is an electronic circuit or device that detects and indicates the voltage level of a battery — whether it’s too high (overcharged), normal, or too low (discharged). It helps protect batteries from overcharging or deep discharge, which can damage the battery or reduce its lifespan.
These monitors often use comparators, voltage dividers, LED indicators, or microcontrollers to track and display battery status in real time.
₹225.00 -
A heartbeat detector is an essential device for monitoring heart health, providing real-time data about a person’s pulse rate. Whether in a hospital, gym, or a DIY electronics project, it demonstrates how biomedical signals can be measured and processed using sensors and electronics. It’s a valuable tool for both personal health awareness and professional medical diagnostics.
₹450.00













