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Newly Updated Circuit Projects:

IC LM393 Complete Datasheet with Circuit Diagram

Last Updated on October 20, 2025 by Swagatam 3 Comments

Here we are going to discuss about LM393 that is a very popular dual voltage comparator IC. I will try to explain everything step by step so you can understand. We will see the ratings, the pinout, the electrical values, the formulas and also the way we can use it in real life circuits. General […]

Filed Under: Datasheets and Components Tagged With: Complete, Datasheet, LM393

How a Relay Works – How to Connect N/O, N/C Pins

Last Updated on October 16, 2025 by Swagatam 81 Comments

how to connect a 6 pin relay

An electrical relay consists of a electromagnet and a spring loaded changeover contacts. When the electromagnet is switched ON/OFF with a DC supply, the spring loaded mechanism is corresponding pulled and released by this electromagnet, enabling a changeover across the end terminals of these contacts. An external electrical load connected across these contacts are subsequently […]

Filed Under: Electronics Theory Tagged With: Connect, Pins, Relay, Works

Making a Time Machine – Concept Explored

Last Updated on October 16, 2025 by Swagatam 3 Comments

Wondering how to travel in time? Learn it with great Sir Stephen Hawking, according to whom time warp may be an option but seems pretty impractical, the reason being the feed back loop which will just oppose the feasibility of making a time machine and the concept using this theory. Are you intrigued by the […]

Filed Under: Electronics Theory Tagged With: Concept, Explored, Machine, Making, Time

3.7 V Li-Ion Battery Charger Circuit with Automatic Cut-off

Last Updated on October 14, 2025 by Swagatam 401 Comments

Li ion USB charger circuit

In this article we study a simple 3.7V li-ion battery charger circuit with auto-cut off, which can be charged from your computer USB port or any other 5 V regulated source. Simplest 3.7V Li-ion Battery Charger with Auto Cut-off using LM393 IC If you do not wish to read the following long explanation, you can […]

Filed Under: Battery Charger Circuits Tagged With: Automatic, Battery, Charger

LM567 IC Calculator Tool

Last Updated on October 11, 2025 by Swagatam Leave a Comment

LM567 application circuit

We can use this small LM567 calculator tool for finding the right frequency, Rt, and Ct values for our tone decoder circuit. Now we know that this IC works on one simple relation which is, f = 1 / (1.1 × Rt × Ct) So we can see that this frequency depends only on the […]

Filed Under: Electronics Theory Tagged With: Calculator, LM567, Tool

IC LM358 Datasheet and Specifications

Last Updated on September 28, 2025 by Swagatam 2 Comments

home protector circuit using LM358

In this post you will find the complete datasheet, pinout specifications of the IC LM358. This datasheet is written in simple language so that even the new hobbyists are able to grasp the technical details of the IC quickly. The IC LM358B offers two high-voltage (36V) amplifiers in a single chip making them cost-effective for […]

Filed Under: Datasheets and Components Tagged With: Datasheet, LM358, Specifications

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