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Build this 85V–265V AC to 12V 5A SMPS Design Using UC3843 (With Calculations)

Last Updated on June 10, 2026 by Swagatam 2 Comments

This thing is a full SMPS design using UC3843, which takes wide AC input from 85V AC to 265V AC, then gives out 12V DC at 5A, so now it is like a universal input supply, which can be used for 110V AC supplies and also for 220V AC input supplies… Input Protection Stage At […]

Filed Under: SMPS and Converters Tagged With: 12V, 265V, 85V, AC, Build, SMPS

Build Customized 220V Flyback SMPS Circuits: 12V, 5A, 60W Example Discussed

Last Updated on June 8, 2026 by Swagatam Leave a Comment

In this post I will explain you all the simple formulas, step by step, which you can use for designing and building professional grade 220V AC SMPS flyback converter circuits. As we know the SMPS transformer is the heart of an SMPS design, so here we will learn all the steps, one by step, using […]

Filed Under: SMPS and Converters Tagged With: 220V, Build, Circuits, Customized, Flyback, SMPS

How to Build a Grow Light Circuit

Last Updated on June 1, 2026 by Swagatam 7 Comments

growlightcircuit

In this post I have explained a typical grow light circuit application for plants in order to stimulate photosynthesis effect in an artificially lit environment using multicolored LEDs. The idea was suggested by Mr. Jack. The Circuit Objective I would like to donate to your site and pay you also for work you do on projects […]

Filed Under: Lamps and Lights Tagged With: Build, Grow, Light

How to Build a Simple Cloth Dryer for Rainy Season

Last Updated on May 28, 2026 by Swagatam 12 Comments

cloth1

In this post I have explained a simple homemade electric cloth dryer circuit using iron heater coil assembly which can be used for drying clothes at home during rainy season or overcast conditions. The idea was requested by Mr. Nelson. Circuit Objectives and Requirements I have read through some of the topics explained at your […]

Filed Under: Home Electrical Circuits Tagged With: Build, Cloth, Dryer, Rainy, Season, Simple

How to Build an Ozone Water/Air Sterilizer Circuit – Disinfecting Water with Ozone Power

Last Updated on May 28, 2026 by Swagatam 49 Comments

We are all familiar with thundering and lightning during stormy weathers and know how the effect is responsible of producing a lot of ozone and negative ions in the atmosphere. The same concept has been employed in the proposed water and air sterilizer circuit. Properties of Ozone Ozone is a pale blue gas having a […]

Filed Under: Home Electrical Circuits Tagged With: Build, Disinfecting, Ozone, Power, Sterilizer, Water

Build a Homemade GSM Car Security System

Last Updated on May 16, 2026 by Swagatam 54 Comments

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This super simple circuit design of a gsm car security system really works.Don’t believe it? Find out and learn the simple method of constructing it. How would you feel if you had the power of controlling your vehicle through your own cell phone, from any part of the world? Learn more how to build a […]

Filed Under: Automobile Electronics Tagged With: Build, GSM, Homemade, Security, System

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