This article show how to make one Sound Activated Relay Circuit. It uses sound for turning device ON and OFF. Relays are special parts and they control big power things like lights and motors. Here are some ways to use it: This article tell how to build and use this type of circuit. of circuit. […]
Simple Transistor Relay Driver Circuit
Small switch we call transistor is inside almost all electronic thing. But transistor cannot handle big power by itself. So we have used Simple Transistor Relay Driver Circuit which is like a special adapter for transistor. This help small signal from transistor to control big relay switch. With this we can turn ON or OFF […]
LED Chaser Circuit using IC 4017
This LED Chaser Circuit using IC 4017 project make LED lights turn ON one by one like chasing. It is fun way to learn electronics. One chip of IC 555 makes pulse again and again. That pulse connects to other chip IC 4017 and it turn ON and OFF each pin one by one. All […]
Simple Temperature Indicator Circuit using a Single Transistor
To make a Simple Temperature Indicator Circuit using a Single Transistor is not so hard like people think. This article tell how anyone can build this easy circuit using one diode, one transistor and some other small parts. What is a Temperature Indicator Circuit using a Single Transistor: Using one transistor, temperature indicator circuit is […]
Simple Current Limiter Circuit using Transistors
Simple Current Limiter Circuit using Transistors gives tutorial to show how to make a circuit that stop giving too much power to other electronics. It helps to protect from overload by using two transistors and one special resistor. What is a Current Limiter Circuit using Transistors: A transistor current limiter circuit stops too much current […]
Simple Voltage Regulator Circuit using Transistor and Zener
This Simple Voltage Regulator Circuit using Transistor and Zener work like bodyguard for electricity. It uses one transistor like door keeper and one special Zener diode to keep voltage not going up-down. Zener diode gives fixed voltage and transistor follow that voltage to keep same for our device. This project is good when voltage goes […]