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Newly Updated Circuit Projects:

How to Calculate Ferrite Core Transformers

Last Updated on July 5, 2025 by Swagatam 273 Comments

center tapped transformer

Calculating ferrite transformer is a process in which engineers evaluate the various winding specifications, and core dimension of the transformer, using ferrite as the core material. This helps them to create a perfectly optimized transformer for a given application. The post presents a detailed explanation regarding how to calculate and design customized ferrite core transformers. […]

Filed Under: SMPS and Converters Tagged With: Calculate, Core, Ferrite, Transformers

Types of Arduino Boards with Specifications

Last Updated on May 14, 2026 by Swagatam 22 Comments

Arduino Uno WiFi rev 2

In this post we present a list of around 20 popular Arduino boards that are used by engineering students and professionals for their specific application needs. The types of Arduino boards discussed here are designed with a range of unique features and specifications to suit a desired application in the most effective way. The range […]

Filed Under: Arduino Projects Tagged With: Arduino, Boards, Specifications, Types

TL494 Datasheet, Pinout, Application Circuits

Last Updated on September 21, 2026 by Swagatam 53 Comments

pin layout for TL494 IC

The IC TL494 is a versatile PWM control IC, which can be applied in many different ways in electronic circuits. In this articles I have explained in detail regarding the main functions of the IC, and also how to use it in practical circuits. General Description The IC TL494 is specifically designed for single chip […]

Filed Under: Datasheets and Components Tagged With: Application, Circuits, Datasheet, Pinout, TL494

Understanding MOSFET Turn-ON Process

Last Updated on May 20, 2026 by Swagatam 8 Comments

gate threshold specs

A correctly calculated MOSFET turn-ON process ensures that the device is switched ON with optimal efficiency. While designing MOSFET based circuits you might have wondered what is the correct way of turning ON a MOSFET? Or simply what is the minimum voltage that should be applied across gate/source of the device to switch it ON […]

Filed Under: Electronics Theory Tagged With: MOSFET, ON, Process, Turn, Understanding

BJT Transfer Characteristics

Last Updated on May 20, 2026 by Swagatam Leave a Comment

image

In BJTs or bipolar transistors, transfer characteristics can be understood as plotting of an output current against an input-controlling magnitude, which consequently exhibits a direct “transfer” of variables from input to output in the curve represented in the graph. We know that for a bipolar junction transistor (BJT), the output collector current IC and the […]

Filed Under: Electronics Theory Tagged With: BJT, Characteristics, Transfer

How MOSFETs Work: Depletion Type, Enhancement Type

Last Updated on May 20, 2026 by Swagatam 6 Comments

constant k

Two main types of FETs that presently exist are: JFETs and MOSFETs. MOSFETs can be further classified into depletion type and enhancement type. Both these types define the fundamental mode of operation of MOSFETs, while the term MOSFET itself is the abbreviation of metal-oxide-semiconductor-field-effect transistor. Due to the fact that the two types have different […]

Filed Under: Electronics Theory Tagged With: Depletion, Enhancement, MOSFETs, Type

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