Frequency Dividers are the circuits which divide the input frequency by n (any integer number), means if we provide some signal of frequency ‘f’ then the output will be the divided frequency ‘f/n’. Frequency dividers are very useful in analog as well as digital applications. Here we are building the circuit to divide the frequency by 2 or 4.
In this tutorial we are making a Temperature controlled DC fan using Thermistor, as it starts above the preset level of temperature and stops when the temperature return to normal condition. This whole process is done automatically.
In this project, we will use Triac to control the brightness of the AC bulb with a IR TV Remote. You can also control Fan speed with your TV remote using this Triac Dimmer circuit.
The name of the circuit itself infers the application. This circuit triggers the alarm if the door of Fridge is left open for the long time.
DIY Stun Gun
Here you can find a detailed tutorial to build your own stun gun with circuit diagram and PCB design files.
Simple LED Circuit for Beginners
Get started with electronics with this very basic circuit build on breadboard.
1W LED Driver Circuit
Design a high power LED driver circuit with current limiting using ICLM317.
Brake Failure Circuit
Make this simple brake failure circuit using 555 timer IC, which detects the continuity of wire and when it found the wire broken it shows the red LED glowing.