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Calculations

Capacitor Inductor Calculations

Last Updated on May 20, 2026 by Swagatam 4 Comments

function of I

Inductors can be imagined as the opposite of capacitors. The main difference between a capacitor and an inductor is that a capacitor carries a protective dielectric between its plates, which inhibits the conduction of current across its terminals. Here it acts like an open circuit. On the other hand the inductance of an inductor is […]

Filed Under: Electronics Theory Tagged With: Calculations, Capacitor, Inductor

How to Build a Boost Converter Circuit: Explained with Calculations

Last Updated on July 5, 2025 by Swagatam 186 Comments

boost

I have explained comprehensively how to build a boost converter circuit for converting a low level DC voltage inputs to a higher level DC voltage outputs. I have furnished all the required calculations s that you can design a customized boost converter circuit. A Practical Boost Converter Circuit Design using IC 555 This simple circuit […]

Filed Under: SMPS and Converters Tagged With: Boost, Build, Calculations, Converter, Explained

Opamp Hysteresis – Calculations and Design Considerations

Last Updated on September 12, 2026 by Swagatam 8 Comments

nohyst

In most automatic battery charger circuits in this blog you might have seen an opamp with a hysteresis feature included for some crucial function. In the following post I have explained the significance and design techniques for the hysteresis function in opamp circuits. To learn exactly what’s a hysteresis you can refer to this article […]

Filed Under: Electronics Theory Tagged With: Calculations, Considerations, Design, Hysteresis, Opamp

How to Design a Buck Converter Circuit: Formulas and Calculations

Last Updated on May 20, 2026 by Swagatam 71 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

Transistor Relay Driver Circuit with Formula and Calculations

Last Updated on May 20, 2026 by Swagatam 131 Comments

Relaydriver

In this article we will comprehensively study a transistor relay driver circuit and learn how to design its configuration by calculating the parameters through formulas. Importance of Relay Relays are one of the most important components in electronic circuits. Especially in circuits where high power transfer or mains AC load switching is involved, relays play […]

Filed Under: Electronics Theory Tagged With: Calculations, Driver, Formula, Relay, Transistor

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