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Newly Updated Circuit Projects:

12V DC to 220V DC Boost Converter Circuit

Last Updated on March 17, 2026 by Swagatam 126 Comments

In this article I have explained a very simple method of acquiring 220V DC from a 12V DC source. The idea utilizes inductor/oscillator based boost topology with the help of the IC 555. Circuit Operation Now let us learn more about this simple 12V to 220V DC boost converter circuit, which is built around IC […]

Filed Under: Power Supply Circuits Tagged With: 12V, 220V, Boost, Converter, DC

SG3525 Inverter Circuits with Low Battery Cut-off and Overvoltage Regulation

Last Updated on March 16, 2026 by Swagatam 4 Comments

sg3525INVERTERCIRCUITWITHOVERLOADLOWBATTPROTECTIONCIRCUIT

In this post I have explained a 3 powerful yet simple 12V inverter circuits using a single IC SG 3525. The first circuit is equipped with a low battery detection and cut off feature, and an automatic output voltage regulation feature. You may also want to read how to design a sine wave inverter from […]

Filed Under: Inverter Circuits Tagged With: Explained, Inverter, SG3525, Simple, Sine, Wave

Make This 1KVA (1000 watts) Pure Sine Wave Inverter Circuit

Last Updated on March 8, 2026 by Swagatam 294 Comments

A relatively simple 1000 watt pure sine wave inverter circuit is explained here using a signal amplifier and  a power transformer. As can be seen in the first diagram below, the configuration is a simple mosfet based designed for amplifying current at +/-60 volts such that the connected transformer corresponds to generate the required 1kva […]

Filed Under: Inverter Circuits Tagged With: 1000, 1KVA, Pure, Sine, watts, Wave

How to Design a Bench Power Supply Circuit

Last Updated on March 4, 2026 by Swagatam 187 Comments

In this post I have explained how an effective and efficient, yet very cheap, and stabilized bench power supply can be designed by any electronic hobbyist for safely testing all types electronic projects and prototypes. The main features that a bench power supply must have are: Audio/Video Representation General Description The majority of the power […]

Filed Under: Power Supply Circuits Tagged With: Bench, Design, Power, Supply

Simple ESR Meter Circuits Explained

Last Updated on March 2, 2026 by Swagatam 83 Comments

In this post I have explained a few simple ESR meter circuits which can be used for identifying bad capacitors in an electronic circuit without removing them practically from the circuit board. The idea was requested by Manual Sofian… Technical Specifications Do you have a schematic about ESR meter. Technicians recommend me to check the […]

Filed Under: Meters and Testers Tagged With: ESR, Meter, Simple

Simple Solar Tracker System – Mechanism and Working

Last Updated on February 28, 2026 by Swagatam 88 Comments

The circuit and the mechanism I have explained in this article may be considered as the easiest and perfect dual axis solar tracker system. How the Dual Axis Solar Tracker Concept Works The device is able to track the daytime motion of the sun precisely and shift in the vertical axis accordingly. The device also […]

Filed Under: Solar Controller Circuits Tagged With: Mechanism, Simple, Solar, System, Tracker, Working

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