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Newly Updated Circuit Projects:

How to Design Customized 220V SMPS Circuits

Last Updated on September 28, 2025 by Swagatam 4 Comments

We many times think that how we can make a SMPS circuit, and we feel that this is very complex. But that is not so because we can do this by following simple manual calculations step by step. We only need to know that SMPS design is always starting from the transformer. We cannot make […]

Filed Under: Power Supply Circuits, SMPS and Converters Tagged With: 220V, Circuits, Customized, Design, SMPS

Convert SMPS into a Solar Charger

Last Updated on September 27, 2025 by Swagatam 51 Comments

chargingbatteryfromsmpssolarchargercircuit.

In this post I have explained how to convert smps into a solar charger circuit. The method will result in an extremely efficient and fast solar charging of the connected battery. SMPS Solar Chargers SMPSs have become very common nowadays and we find them being used in the form of AC to DC adapters wherever […]

Filed Under: Battery Charger Circuits, Solar Controller Circuits Tagged With: Charger, Convert, SMPS, Solar

FET Current Source: Explained with Formulas

Last Updated on September 26, 2025 by Swagatam Leave a Comment

An FET Current Source is one special type of active circuit that is using a Field Effect Transistor for giving a steady and constant current into a circuit. We are doing this because sometimes we want that current should not change, it should remain fixed and stable. Why We Need Constant Current Now you may […]

Filed Under: Electronics Theory Tagged With: Current, Explained, FET, Formulas, Source

IC IR2111 H-Bridge Inverter Circuit with Shut Down

Last Updated on September 26, 2025 by Swagatam 10 Comments

This circuit is basically a H bridge inverter where two IC IR2111 are working for driving four MOSFETs that are connected in H bridge way. We also see that there is a overload and over current shut down using BC547 small transistors. So what happens is that we can run a load with AC waveform […]

Filed Under: Inverter Circuits Tagged With: Bridge, Down, Inverter, IR2111, Shut

How to Connect Resistors in Series and Parallel

Last Updated on September 26, 2025 by Swagatam 36 Comments

combining resistors in series and parallel

There are three ways to interconnect resistors: series, parallel and in combination of series/parallel. When resistors are joined in series, the current passing via one resistor also passes through the next. When resistors are joined in parallel, they are wired across each other, resulting in the same voltage across each resistor. When resistors are connected […]

Filed Under: Electronics Theory Tagged With: Connect, Parallel, Resistors, Series

Modified Inverter Circuits using 4049, 4093 ICs

Last Updated on September 26, 2025 by Swagatam Leave a Comment

The following inverter designs are unique modified sine wave inverter concepts designed me. The entire unit along with the oscillator stage and the output stage can be easily built by any electronic enthusiast at home. The present designed will be easily able to support 500 VA of output load. Let’s try to understand the circuit […]

Filed Under: Inverter Circuits Tagged With: 4049, 4093, Circuits, Inverter, Modified

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