Electronic is fun to learn, especially if you can learn it by building your own circuits. To help you with that, Circuit Digest provides you with a list of popular Electronic circuits and Electronic projects with well illustrated circuit diagram and detailed explanation for a complete do-it-yourself experience. All projects are tested and verified with a working video for a hassle free learning experience. Whether you are an expert or beginner in electronics, we have something interesting for all of you. Below is our huge collection of 200+ free electronic circuits that you can build today.
Many Analog Electronic circuits require dual power supply rails for proper balanced operation one being the Operational amplifier circuit. Negative supply voltage is also required in digital systems like A/D converters, op-amps, and comparators. In our previous tutorial, we built a +12V and -12V Dual Power Supply Circuit and a +5V and -5V Dual Power Supply Circuit but the…
Quad copter is a type of unmanned aerial vehicles (UAV) or drone being used on large scale. These are used for rescue operation, delivery, surveillance, defense, medical and agricultural purposes, etc. The main advantages of drones are compact size and easy controlling. In this article, we will learn how to design the quad copter…
One of the main applications for Schmitt triggers is interfacing signals between Analog electronics and Digital electronics, and translating levels within different logic families.
One major problem encountered during this process is the pickup of noise. Digital signals are inherently fast because they deal with high frequencies and fast-…
Operational Amplifiers or op-amps for short are perhaps the most widely used component amongst all analog electronics. Because of their versatility, only a few external components are needed to configure them to perform a wide range of tasks like amplification, addition, subtraction, multiplication, integration and so on, hence the name operational amplifier,…
Raspberry Pi is a small or mini-computer that can be used in different types of small to large embedded, IoT, Industrial IoT applications. As this is a computer that could run different operating systems, a shutdown of this minicomputer is an important thing to ensure that everything is saved, the operating system properly ended all required tasks, and it is safe to turn the…
A generic AC fan regulator circuit is essentially used to vary the speed of the fan. In this project, we will build our own fan regulator with minimum components and for better efficiency. Generally, the fan generates a humming noise when brought to use with different fan regulator circuits, our circuit uses DIAC and a TRIAC and produces minimum…
There are a large number of injuries resulting from electrical shocks especially while maintaining and repairing electrical lines and towers. It is very difficult to isolate and check the presence of voltage in the wires without cutting it. A contactless voltage detector could come in very handy when dealing with such situations to be sure about no presence of voltage…
Doorbell is a very common and useful device used in every household. Among electronics students and hobbyists, the doorbell circuit project is quite popular. So, in this tutorial, we are going to build a simple musical doorbell using UM66T melody generator IC. This a very simple and interesting project that requires very few components. The main feature of this doorbell…
A MOSFET is a type of transistor that uses an electric field to control current flow, and is widely used in switching and amplification circuits. MOSFET stands for Metal Oxide Semiconductor Field Effect Transistor, which has a gate. For simplicity, you can imagine this gate like a water tap. You rotate the tap counter-clockwise the water starts flowing out of the tap.…
In the field of DC-DC Converters, A single-ended primary-inductor converter or SEPIC converter is a type of converter that uses a boost type control topology to step up or step down the input voltage. After reading this, the first question that will come to your mind would be, is it like a glorified Classic Buck-Boost Converter? The answer is yes and no. A classic buck-…
If you are an electronics hobbyist then you must have heard about the 555 timer IC and its 3 popular circuits viz. astable multivibrator, bistable multivibrator, and monostable multivibrator. Apart from these, there are other popular circuits like 555 timer IC as a switch and police hooter that we have talked about previously. Adding to the list,…
The bistable multivibrator is one of those basic circuits which you might have learnt about in your high school or college, and you probably have built one with 555 timers or with discrete components like OP-amp, transistors, or resistors. These circuits are often viewed as simple educational circuits, but not so surprising they are also used in practical designs…
