Electronics

Constant Current Driver Design based on LM317

Using a resistor to limit the current can be used for small LEDs. For such low power LEDs, where the ...
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What Are Current, Resistance and Voltage?

Voltage, current, and resistance are three properties that are fundamental to almost everything you will do in electrical and electronics ...
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How Multicolor RGB (Red Green Yellow) LEDs Work?

A Light Emitting Diode that emits one color when forward biased and another color when reverse biased is called a ...
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Working of Light Emitting Diode (LED)

A light-emitting diode (LED) is a diode that gives off visible light when forward biased. Light-emitting diodes are not made ...
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Arduino DC Digital Voltmeter

A voltmeter is an instrument used for measuring electrical potential difference between two points in an electric circuit. Analog voltmeters ...
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What is Ladder Diagram and How to Draw a Ladder Diagram?

This is a continuation of the previous article (Introduction to PLC Ladder Programming) in PLC Programming series. Please go through ...
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Introduction to PLC Ladder Programming

We have already discussed the introduction to programmable logic controllers. Please go through it before reading this. In this article, ...
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Types of ROM | PROM, EPROM, EEPROM, Flash EPROM & Mask ROM

What is ROM? ROM stands for Read-only Memory. It is a type of memory that does not lose its contents ...
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Controlling a Servo Motor with Arduino

A servomotor is also defined as a rotary actuator that allows for very fine control of angular positions. This article ...
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Electric Potential, Potential Difference and EMF

In this article, you will study what are electric potential, the potential difference (PD) and electromotive force (emf) and the ...
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Different Types of Capacitors and their Uses

Basically, a capacitor is formed from two conducting plates separated by a thin insulating layer. There are different types of ...
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Arduino based Automatic Light Controller

The automatic light controller offers energy saving and convenience in the areas with a photosensor (LDR). LDR senses the ambient ...
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Difference b/w Microprocessor and Microcontroller

The term microprocessor and microcontroller have always been confused with each other. Both of them have been designed for real-time ...
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How to Make a Digital Lock Using Arduino?

Digital code locks are most common in security systems. An electronic lock or digital lock is a device which has ...
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Design a Power Supply Circuit – Simple to Complex

No electronics can run without power, to be precise a low voltage DC power, and a power supply unit is ...
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Stroboscopic Effect in Fluorescent Lamps

Fluorescent materials when subjected to electromagnetic radiations of particular wavelength, get excited and in turn, gives out radiations at some ...
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An Introduction to the Arduino for Beginners

What is Arduino? Arduino is an open-source platform used for building electronics projects. Arduino consists of both a physical programmable ...
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Insulators, Conductors and Semiconductors (with Band Diagram)

Solid state materials can be classified into three groups: insulators, semiconductors conductors. Insulators have no free charge carriers available with ...
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Inside Parts of a Miniature Circuit Breaker

MCB (Miniature Circuit Breakers) – Types, Working and Trip Curves

What is MCB? MCB or Miniature Circuit Breaker is an electromechanical device which protects an electric circuit from an overcurrent. The ...
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29 Important Electrical Interview Questions you must Go through

Nervous about an upcoming Electrical Engineer interview? Check out this well-curated list of frequently asked Electrical interview questions and answers ...
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