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Design

How to Design a Buck Converter Circuit: Formulas and Calculations

Last Updated on May 20, 2026 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

How to Select MOV – Explained with a Practical Design

Last Updated on May 20, 2026 by Swagatam 114 Comments

MOV

MOVs or metal oxide varistors are devices designed for controlling mains switch ON surges in electrical and electronic circuits. Selecting an MOV for a particular electronic circuit might require some consideration and calculation, I have explained the procedures here. What are MOVs Metal oxide varistors or simply varistors are non-linear surge suppressor devices which are […]

Filed Under: Electronics Theory Tagged With: Design, Explained, MOV, Practical, Select

Automotive LED Driver Circuits – Design Analysis

Last Updated on May 16, 2026 by Swagatam 38 Comments

telltale lights automotive

In cars or automobiles, LEDs have grown to be the preferred choice of lighting. Whether it’s the rear tail-lights or the tell-tale indicators in the cluster as indicated in Figure 1 below, all incorporate LEDs nowadays. Their compact dimensions helps versatility in design and offers the prospective to be as durable as the vehicle’s life […]

Filed Under: Automobile Electronics Tagged With: Analysis, Automotive, Circuits, Design, Driver, LED

How to Design High-Pass and Low-Pass Filter Circuits Quickly

Last Updated on May 15, 2026 by Swagatam 34 Comments

high2Bpass2Bgraph

In this post I have explained how to design audio filter circuits such as high pass filter and low pass filter circuits effortlessly without going through the hassles of complex simulation and calculations. The presented designs will enable creating filter circuits only for the desired specific frequency bands and block all other unwanted frequencies. What’s […]

Filed Under: Audio and Amplifier Projects Tagged With: Circuits, Design, Filter, High, Pass, Quickly

How to Design MOSFET Power Amplifier Circuits – Parameters Explained

Last Updated on May 15, 2026 by Swagatam 15 Comments

BJT vs MOSFETs

In this post I have explained various parameters that must be considered while designing a MOSFET power amplifier circuit. We also analyze the difference between bipolar junction transistors (BJT) and MOSFET characteristics and understand why MOSFETS are more suitable and efficient for power amplifier applications. Contributed by Daniel Schultz Overview When designing a power amplifier […]

Filed Under: Audio and Amplifier Projects Tagged With: Amplifier, Circuits, Design, MOSFET, Parameters, Power

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

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