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Design

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

Design your own Sine Wave Inverter Circuit from the Scratch [Tutorial]

Last Updated on November 30, 2025 by Swagatam 48 Comments

the right way to interface SPWM with inverter MOSFETs

In this article I have explained comprehensively regarding how to design a sine wave inverter without any form of coding or complex circuit designs. The included designs are simple yet extremely precise with their sine waveform structure. You might have often felt discouraged, thinking that making a sine wave inverter from the scratch can be […]

Filed Under: Inverter Circuits Tagged With: Design, Inverter, Scratch, Sine, Tutorial, Wave

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

How to Design Simple LED Driver Circuits

Last Updated on July 5, 2025 by Swagatam 101 Comments

capacitive LED driver with 50 LEDs

In this article I have explained how to design your own customized, simple LED driver circuits at home. We will learn how to calculate specific LED configurations for applying the LEDs with appropriate LED driver power supplies. In these driver power supplies I have explained two concepts one by using SMPS boards and the other […]

Filed Under: Lamps and Lights, SMPS and Converters Tagged With: Circuits, Design, Driver, LED, Simple

How to Design a Flyback Converter – Comprehensive Tutorial

Last Updated on July 5, 2025 by Swagatam 54 Comments

1

A flyback configuration is the preferred topology in SMPS application designs mainly because it guarantees complete isolation of the output DC from the input mains AC. Other features include low manufacturing cost, simpler design and uncomplicated implementation. The low current DCM version of flyback converters which include output specification lower than 50 watt are more […]

Filed Under: SMPS and Converters Tagged With: Comprehensive, Converter, Design, Flyback, Tutorial

How to Design a Buck Converter Circuit: Formulas and Calculations

Last Updated on January 9, 2025 by Swagatam 67 Comments

pwm2Bcheck

In this post I have explained the method of designing buck converter circuits by calculating all the required parameters, in order to ensure an optimal performance from these devices. We take the example of IC 555 buck converter typologies, and try to understand the optimizing techniques through equations and manual adjustments, for achieving the most […]

Filed Under: Electronics Theory Tagged With: Buck, Calculations, Converter, Design, Formulas

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