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Electronics Theory

Difference Between Op amp and Comparator

Last Updated on May 20, 2026 by Swagatam 6 Comments

IC 741 and LM393 comparison compressed

In this article I have explained the main differences between op amp and comparator, and try to understand why op amps are not ideally suited to be used like compartaors. We also learn the main advantages of using compartaor ICs in comparator applications. Basically, you will find many electronic lectures or publications talking about using […]

Filed Under: Electronics Theory Tagged With: Between, Comparator, Difference

6 Simple AC Bridge Circuits Explained

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

Fig compressed

An AC bridge is a circuit which can be used for measuring parameters like capacitance, resistance, Inductance using differential method, by comparing them with known values of similar components, positioned diagonally across a bridge circuit, and through an analogue meter placed at the center of the bridge. Before we begin talking about the AC bridge […]

Filed Under: Electronics Theory Tagged With: AC, Bridge, Circuits, Explained, Simple

High Stability of Crystals in Oscillator Circuits

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

electronic model of a crystal

The stability of good quality RC oscillators can be expected to be around 0.1%, while normally we can assume the stability of LC oscillators to be up to 0.01%. When a much higher level of stability is required, we have to use a crystal based oscillator circuit. The main reason why crystals are so important […]

Filed Under: Electronics Theory Tagged With: Circuits, Crystals, High, Oscillator, Stability

Boolean Algebra in Logic Circuits Made Easy

Last Updated on May 20, 2026 by Swagatam 10 Comments

inversion compressed

Boolean algebra is a assortment of basic mathematical techniques applied to signify and communicate the logical procedures that happen within a digital circuit. Difference Between Boolean Algebra and Common Algebra Boolean algebra is much like common algebra. The main distinction is that in contrast to common algebra, in which we have parameters that can be […]

Filed Under: Electronics Theory Tagged With: Algebra, Boolean, Circuits, Easy, Logic, Made

12 Basic Digital Logic Circuits Explored

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

Fig1a

In the following paragraphs I will try to explain the most basic foundations of digital electronic circuits: namely logic gates and logic flip-flops. Whether it is a complex and larger digital circuits, or as simple as a BCD counter, for example the 7490, or a large-scale integration (LSI) microprocessor chip, eventually all of these comprise […]

Filed Under: Electronics Theory Tagged With: Basic, Circuits, Digital, Explored, Logic

Understanding MOSFET Current Rating in Datasheets

Last Updated on May 20, 2026 by Swagatam 22 Comments

MOSFET current limitation on datasheet compressed

In this post I will comprehensively explain the current rating of MOSFETs in their datasheets, and helps us to understand how it is calculated by the design engineers, keeping in mind the various external parameters, which potentially impact the current limitations of the device. In simple terms, MOSFET current rating can be defined as the […]

Filed Under: Electronics Theory Tagged With: Current, Datasheets, MOSFET, Rating, Understanding

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