Electronic Circuits

Switched-mode power supply circuits (SMPS) are most often required in many electronic designs to convert the AC mains voltage to a suitable level of DC voltage for the device to operate. This type of AC-DC converter takes in the 230V/110V AC mains voltage as input and converts it to low-level DC voltage by switching it, hence the name switch-mode power supply. We have…

In this article, we are going to test a 4s 40A BMS. We will first design a 4s battery pack and then attach the BMS with the battery pack to perform all the features of the BMS. Due to the high energy density of Li-ion cells and their rechargeable capabilities, Li-ion cells are getting extremely common to make battery packs for different applications. But we need to connect a…

In Part-1 of this tutorial, we have seen how to assemble and set up the quadcopter. In this tutorial, we are going to fly our quadcopter and we will discuss the challenges we have faced during fly. Before flying a quadcopter, you have to check UAV guidelines issued by the local authorities in your area. We are going to use the KK2.1.5 flight controller for our…

In this DIY project article, we will build a simple, cost-effective, powerful LED driver circuit that could be useful to power up an entire 12V light string that has more than 100 or even 200 LEDs. As there are many led driver projects that we have covered on our website, this is a very miniature version and can only be used for lighting a LED strip.

In this article, we will see how to design a simple 12V Li-Ion battery pack and how to use it with a protection circuit. A lithum-Ion battery is one of the most commonly used energy storage devices employed for powering equipment and gadgets in today’s time. Due to a high energy density and rechargeable capabilities, Li-ion cells are…

Line follower Robot (LFR) is a machine that follows a line, it may be a black line or a white line. The line following bot is beginner-friendly and interesting to understand and build. While Line follower bots are popular and common to be built with Arduino or other microcontrollers, let’s try to build the same without a microcontroller and actually understand the logic…

Incubation is a technology that provides farmers an opportunity to produce chicks from eggs without the help of the mother hen/bird. Incubating and hatching eggs is a simple task if you know the right way to do it. The most important difference between natural and artificial incubator is that in natural incubation, parent provides warmth by contact. But in the…

Switching Mode Power Supply, or simply SMPS, is a type of Power Supply Unit (PSU) that uses a switching device (such as a transistor or MOSFET) to convert the source, which can be AC or DC, to a constant DC voltage. Switched-mode power supply circuits (SMPS) are most often required in many electronic designs to convert the AC mains voltage to a suitable level of DC voltage…

In this project, we are going to make a 2S charger module using the MCP73844 module from the microchip. The charger is capable of taking voltage between 2-12Volts and charge Li-ion and Li-Po batteries in a 2S configuration. The aim of this project is to develop a charging circuit that can be used as a subsystem in any consumer-grade project. The charger module can be…

In this project we build a boost converter circuit using a 555 timer IC. Boost converter is a non-isolated type of switch mode power supply that is used to step-up the voltage. In other words, it gives a higher output voltage compared to the input voltage. The circuit is very similar to a buck converter we designed for controlling motor and LED strip which is used…

In this article, we will make a buck converter using 555 timer IC and a IRFZ44N N channel MOSFET and use it as LED dimmer circuit or as a motor speed controller circuit. This circuit is basically a simple power electronics DC-DC Buck converter which can be used to step down voltage, its efficiency results in better battery life due to reduced heat generation making it a…