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Know about Electronic Components, Displays, Power Source, Batteries and T&M Instruments

Know about Electronic Components, Displays, Power Source, Batteries and T&M Instruments
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Power Sources

DC Power Supply

Bench Power Supply is an important piece of equipment when it comes to working around electronic circuits. Electronic components majorly work on DC Power Supply and hence having a reliable source of DC Power Supply is very important.

There are many types of Power Supplies like AC – to – DC Power Supplies, Linear Regulators, Switching Mode Power Supply, etc.



An alternative to bench power supply is to use a wall adapter as per the project requirement like 5V or 12V.


Battery is a device that converts chemical energy in to electrical energy and provides power to devices like mobile phones, laptops, flashlights, etc. In electronics, we often use batteries to power our circuits, either to make the circuit portable or just to test the functionality of the circuit.


Batteries come in different sizes and voltage. Batteries are also classified as Primary and Secondary. You can use Primary Batteries until they are drained out and discard them later. In case of Secondary Batteries, you can use them even after they are drained out by recharging them.

In electronic circuits, we often use 1.5V AA Batteries or 9V PP3 Batteries.


Display Devices

16 x 2 LCD

The most commonly used display module in electronic circuits is an LCD Display and in particular, a 16 x 2 LCD Display. It is an alpha – numeric display with two rows and 16 columns and can display a maximum of 32 characters.


7 – Segment Display

Another common display module is the Seven Segment Display. It can be used to display decimal numerals in different electronic devices like clocks, meters, calculators, public information systems, etc.



Basic Test and Measurement Equipment

When it comes to designing electronic circuits, testing and measuring various parameters like current, voltage, frequency, resistance, capacitance, etc. is very important. Hence, the Test and Measurement Equipment like Oscilloscopes, Multimeters, Logic Analyzers, Function Generators (or Signal Generators) are often used regularly.


The most reliable Test Equipment for observing continuously varying signals is an Oscilloscope. With the help of an Oscilloscope, we can observe the changes in an electrical signal like voltage, over time.

Oscilloscopes are used in a wide range of field like Medical, Electronic, Automobile, Industrial and Telecommunication Applications.


Originally, Oscilloscopes are made up of Cathode Ray Tube (CRT) displays but nowadays, almost all Oscilloscopes are Digital Oscilloscopes with advanced features like storage and memory.


A multimeter is a combination of Voltmeter, Ammeter and Ohmmeter. They provide an easy way to measure different parameters of an electronic circuit like current, voltage etc.

Multimeters can measure values in both AC and DC. Earlies Multimeters are Analog and consists of a pointing needle. Modern Multimeters are Digital and are often called as Digital Multimeters or DMMs.


DMMs are available as handheld devices as well as bench devices. A Multimeter can be very handy in finding basic faults in a circuit.

Function Generator or Signal Generator

A Signal Generator, as the name suggests, generates a variety of signals for testing and troubleshooting electronic circuits. The most common types of signals are Triangular Wave, Sine Wave, Square Wave and Sawtooth Wave.


Along with a bench power supply and oscilloscope, a function generator is also an important piece of equipment when designing electronic circuits.

In this article, we have seen few Basic Electronic Components and Test Equipment that we come across very frequently when designing or testing electronic circuits.

There are a lot more components like Transformers, Buttons, Switches, Connectors, etc. which we can explore as we move forward with a project.

The post Basic Electronic Components appeared first on Electronics Hub.


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