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Electronics Engineering

Electronics engineering plays a central role in modern electrical systems, automation, communication, and control technologies. This category provides practical tutorials and concept-driven articles designed to explain electronic components, devices, and circuit applications in a clear and structured manner.

You will find detailed explanations of semiconductors, diodes, transistors, amplifiers, digital circuits, and real-world electronic applications. Each article is written to bridge the gap between theory and practical implementation, helping students and professionals understand how electronic systems function in real environments.

For foundational knowledge of electronics engineering, review our Circuit Analysis section to understand current and voltage behavior within circuits. You can also assess your electronics knowledge using our MCQs & Practice Tests.

This category supports learners aiming to build strong fundamentals while also exploring advanced electronics topics relevant to industry and academic research.

PC817 High-Speed Optocoupler Working and Characteristics

August 2, 2025March 25, 2022 by Gul Faraz
High-speed-optocoupler-as-zero-cross-detector.

PC817 High-speed optocoupler is an electricity-light-electricity conversion device used for electrical signal transmission with light as the medium

Categories Electronics Engineering Tags capacitor, diode, Electronic Devices, Voltage Source Leave a comment

An Introduction of the TPA3116D2DADR Amplifier

August 2, 2025December 3, 2021 by Gul Faraz

The TPA3116D2DADR are digital amplifiers that are stereo-efficient. They can be used as a power stage to drive speakers with up to 100W / two in mono. Three devices share the same footprint which allows one PCB to function across multiple power settings.

Categories Electronics Engineering Tags Electronic Devices, Transistor Leave a comment

Testing Transistors in Circuits with Multimeters, and Curve Tracer

August 2, 2025June 12, 2021 by Gul Faraz
testing transistors in circuit with multimeter-min

Learn Testing Transistors in Circuits with multimeters, ohmmeter, and curve tracer to test functionality and gain of the transistor.

Categories Electronics Engineering Tags Electronic Devices, meter, Transistor Leave a comment

What is FET Transistor: Characteristics Curves, and Types

August 2, 2025May 23, 2021 by Gul Faraz
FET Biasing diagram and Working

Learn what is a FET? FET Transistor basics, characteristics curves, symbols, types, types of FET, construction, and how a FET works?

Categories Electronics Engineering Tags Electronic Devices, Power Electronics, Transistor 1 Comment

What is SCR? VI Characteristics of SCR and Construction

August 2, 2025May 21, 2021 by Gul Faraz
SCR Construction

SCR stands for Silicon-controlled rectifier. The SCR is a very important member of the thyristor family. It is more popular than another thyristor family members like TRIAC, and DIAC even though that thyristor is used interchangeably with SCR.

Categories Electronics Engineering Tags diode, Power Electronics 3 Comments

How to Choose Capacitor Value to Filter Power Supply Noise?

August 2, 2025April 1, 2021 by Gul Faraz

learn how to Choose Capacitor Value to Filter Power Supply noise reduction. The basic parameters for choosing a capacitor are voltage, frequency, temperature, and polarization.

Categories Electronics Engineering Tags capacitor, diode, Power Electronics 3 Comments

2 Ways of Testing an AC Capacitor with multimeter and Voltmeter

February 25, 2026February 20, 2021 by Gul Faraz
Testing a capacitor with multimeter and voltmeter

Electronics circuits use capacitors to store voltage. Every electrical and electronics circuit needs a capacitor. Troubleshooting an electronic circuit may involve testing a capacitor.

Categories Electronics Engineering Tags capacitor, meter Leave a comment

BJT Transistor regions of operation in the Characteristic Curve

August 6, 2025January 24, 2021 by Gul Faraz
transistor regions of operation in characteristics curve

The collector characteristic curve shows the behavior of the transistor. Based on the condition of the BJT transistor junction biasing, the transistor can be operated in four regions of operation.

Categories Electronics Engineering Tags Transistor 1 Comment

PIN Photodiode: Working, Circuit, Types, Sensitivity, and Uses

August 6, 2025January 21, 2021 by Gul Faraz
PIN Photodiode circuit diagram

Photodiodes is a semiconductor device that operates in reverse bias. The photodiode has a small opening on the top for light entering the light and energizes the PN junction

Categories Electronics Engineering Tags diode, Electronic Devices, led Leave a comment

The process of Printed Circuit Board PCB Assembly PCBA

August 6, 2025September 22, 2020 by Gul Faraz
pcb assembly process

. Every PCB has a component connected to it and is called PCB assembly and the process is called the PCB assembly process. In an assembled PCB, components are connected to each other by copper lines called traces for completing a specific circuit.

Categories Electronics Engineering Tags Electronic Devices, Fundamental of electrical engineering, PCB Leave a comment
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