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Newly Updated Circuit Projects:

High Voltage, High Current Buck Converter Circuit using Isolated Gate Driver

Last Updated on April 22, 2026 by Swagatam Leave a Comment

This is a high voltage 310V to 60V buck converter, so we have that big 310V DC coming in which we usually get after rectifying 220V AC mains. So now that high DC is there and we want to push it down to something like 60V or lower for battery charging or similar work. Audio/Video […]

Filed Under: SMPS and Converters Tagged With: Buck, Converter, Current, High, Isolated, Voltage

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

Last Updated on April 15, 2026 by Swagatam Leave a Comment

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

Make this Simple Set Reset Circuit using IC 555

Last Updated on April 15, 2026 by Swagatam 42 Comments

In this post I have explained a simple IC 555 set/reset application circuit for activating or deactivating a relay alternately. Audio/Video Representation Circuit Operation This electronic set reset circuit is very simple, easy to implement and very useful. It can provide you many applications options in cases where it may be necessary to toggle (switch […]

Filed Under: Mini Projects Tagged With: 555, Reset, Simple

220V AC to 56V DC SMPS Circuit for 48V Battery Charging

Last Updated on April 15, 2026 by Swagatam 2 Comments

In this article we will try to understand how to build a 220V AC to 48 V DC SMPS circuit for charging all types of 48V batteries, using the nice little IC IR2153. However, since 48V battery will require a 56V DC, so we will rather discuss a 220V to 56 V DC battery charger […]

Filed Under: Battery Charger Circuits, SMPS and Converters Tagged With: 220V, 48V, 56V, AC, DC, SMPS

Blood Electrification Circuit: Explanation And Working Principle

Last Updated on April 15, 2026 by Swagatam Leave a Comment

Here we are talking about one circuit which many people know by the name Blood Electrification Unit, and this circuit became known because of Bob Beck many years back in the 1990s time, so now people also call it Beck Blood Electrifier. This unit is nothing complicated looking but the idea sounds heavy because it […]

Filed Under: Health related Projects Tagged With: Blood, Electrification, Explanation, Principle, Working

How to Use IC LM393 as a Current Controller Circuit

Last Updated on April 15, 2026 by Swagatam Leave a Comment

In this post we will understand a current controller and current limiter circuit using the IC LM393 comparator. This circuit is using a low power voltage comparator integrated circuit LM393 and one power Metal Oxide Semiconductor Field Effect Transistor, so the idea is simple but the working looks a little deep when we see it […]

Filed Under: Sensors and Detectors, Voltage Control and Protection Tagged With: Controller, Current, LM393

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