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Newly Updated Circuit Projects:

Emergency Incubator Heater Circuit with Battery Charger

Last Updated on January 1, 2024 by Swagatam 1 Comment

incubator2Bheater

In this post I have explained a 12V power supply with battery charger circuit which can be implemented as an uninterruptible emergency heating system for incubator chambers. The idea was requested by Mr. Arya. Technical Specifications I’ve read all your good article, but can you help me to design an Linear PSU that provide 12 […]

Filed Under: Temperature Controllers Tagged With: Battery, Charger, Emergency, Heater, Incubator

Rechargeable LED Lantern Circuit Using Dynamo

Last Updated on June 8, 2026 by Swagatam 17 Comments

dynamo2Bcharger

In this post we study a simple rechargeable LED lantern circuit which features battery charging option from a dynamo as well as from a mains 220V source. The idea was requested by Mr. Chidimonday. Technical Specifications I like what you doing here, i have even put in work some of your circuit and it functioned […]

Filed Under: Lamps and Lights Tagged With: Dynamo, Lantern, LED, Rechargeable

How to Identify Component Specifications in Schematics

Last Updated on May 17, 2026 by Swagatam 11 Comments

In this post I have explained the correct way of understanding and identifying component specifications in a given circuit schematics, even if the details are missing in the document or the schematic. Schematics without Part Specifications When a new hobbyist searches for a particular electronic circuit of his choice, the internet provides him with a […]

Filed Under: Datasheets and Components Tagged With: Component, Identify, Schematics, Specifications

Solar, Wind, Hybrid Battery Charger Circuits

Last Updated on October 20, 2023 by Swagatam 225 Comments

two2Binput2Bsolar2Bwind2Bcharger2Bcircuit

In this article I have explained a dual input hybrid solar and wind battery charger circuit using cheap and ordinary components. The idea was requested by one of the interested members of this blog. Technical Specifications Good after noon sir am designing a ” Solar and Wind energy harvest regulator circuit” which has two inputs […]

Filed Under: Solar Controller Circuits Tagged With: Battery, Charger, Circuits, Hybrid, Solar, Wind

How a Connect a Potentiometer

Last Updated on May 20, 2026 by Swagatam 10 Comments

use2Bpots

In this article we study how potentiometers work and try to understand how to connect potentiometers in electronic circuits. How Potentiometers Work Potentiometers, or pots as these are called in short form are passive electronic devices which are basically just variable resistors, or resistors whose values can be altered from zero maximum within the given […]

Filed Under: Electronics Theory Tagged With: Connect, Potentiometer

3 Stage Timer Circuit for Industrial Camshaft

Last Updated on July 6, 2019 by Swagatam Leave a Comment

cam2Bshaft

In this post I have explained a simple sequential timer designed for implementing a specified set of actions involving a 3 step relay activation which in turn is used for executing the desired mechanisms. The idea was requested by Mr. Ali.  Technical Specifications I look at your site occasionally and this time round I am […]

Filed Under: Timer and Delay Relay Tagged With: Camshaft, Industrial, Stage, Timer

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