Analog vs. Digital: A Comparative Study is more Effective with Video Tutorials


I know well that most of my readers who are in Electronics study face somewhere lost in their course when it comes to the question of understanding the core functioning of Digital Circuits. Especially when it’s about deciphering the oppositions of Analog to Digital circuits, the brain gets more twisted like a circuit than ever before.

When such is the case, a live video tutorial is essentially helpful as it can minimize the pain involved in understanding the crucial functioning of Logic Gates, different variable of Karnaugh Maps or CMOS. An affordable subscription to the video tutorial packages can render value to your Electronics learning.

Fundamental Facts of Digital Electronics:

Digital circuits and systems are considered to be the foundation of electrical engineering. Digital circuits functions using digital and discrete signals. These circuits are usually made combining transistors and logic gates, and at higher levels, with the combination of microcontrollers or other computing chips. Mostly the processor, whether it’s a big processor in your computer or tiny microcontroller, operate in the digital territory.

Analog vs. Digital Circuits:

It is obvious that the way Analog and Digital electronics process a signal is different as the information encoding system is different in them. Here I have included a comparison chart to make easy understanding the apparent disparity between Analog and Digital electronics.



Signal Analog signal is built with constant signal which represents physical measurements Digital signals are distinct time signals produced by digital modulation
Waves Signified by sine waves Signified by square waves
Representation Uses continuous series of values to indicate information Uses discrete or irregular values to indicate information
Technology Analog technology accounts waveforms as they are Illustrates analog waveforms into a partial set of numbers and accounts them
Data transmissions Subjected to decline by noise throughout transmission and write/read cycle Can be noise-resistant without decline throughout transmission and write/read cycle
Response to Noise More possible to get affected dropping accurateness Less affected given that noise response are analog in character

Seek Help from Online Video Tutorials to Learn Digital Electronics:

It is quite difficult to find a tutorial that gives minute explanations with practical demonstration on various arrays of electronics. Learn Digital Electronics Tutorials available online which are generally intended to retain the structure similar to a professional course. The video tutorials are comprised of almost all types of devices and circuits from very basic to advance. They are made clear and easy to grasp with modern informal style. Thus, put together fun and quality, these online video tutorials are best to learn electronics.

Learning Karnaugh Map Made Easy with Digital Electronics Video Tutorials


Even a few years ago when computer-aided tools did not become a part of our everyday life, engineering still was not dependant on EDA tools like simulators and logic synthesis. Back then students used to make out their designs as gate-level schematics using pencil and paper. These DIY techniques in a way made them rather good for things like logic minimization, and one of these techniques was Karnaugh maps.

Karnaugh maps vs. the Modern Technology

Nowadays with the emerging availability of computer-aided tools like logic synthesis, Karnaugh maps are perhaps one of the most underused tools in the electronics industry. But whether you need it or not, it is always a suggested to understand basic techniques, because you never know when you will feel the need of something from first principles.

What is a Karnaugh map?

To put in one simple statement, the ‘Karnaugh map’, also known as the ‘K-map’, is a method to simplify Boolean algebra expressions. Its history tells us that it was first originated by Maurice Karnaugh who introduced it in 1953 as a refinement of Edward Veitch’s 1952 Veitch diagram.

Karnaugh maps are predominantly used for their ability to resolve race conditions by adding redundant logic terms that “overlap” adjoining groups. But once again, this sort of thing is handled by logic synthesis these days, but as I told earlier that you never know when you might need to understand this fundamental stuff.

Learn Digital Electronics Tutorials to understand Karnaugh map better

Now, the question arises at first, why we need video tutorials. The technical study of a crucial subject like Digital Electronics requires understanding of its core functioning. To serve this particular purpose, these video tutorials are made. They are the vivid source of useful information on varied topics of Digital Electronics like Karnaugh map.

Video tutorials also allow students to get video tutorials on digital electronics by a monthly subscription at a very affordable price. Video tutorials have now become an important part to students because they add an extra dimension to learning, whether recorded or live, that makes a student’s educational experience more valuable. Transforming a classroom setting to a live scene, these videos add different perspectives and mechanisms that students might not be able to take advantage of in their regular textual learning.

Electronics Guide to LED Flashers Circuits—for Beginners


Giving the common dim, poorly flashing headlights a miss, LED alters the mode of vehicle communications. An LED requires very little electrical current—hence this is very energy-efficient. But it dazzles brightly to a fault! Almost a passerby can stop and stare blank for a few moments, bemused by its sheer intensity. Learning electronics is easier when you have a nitty-gritty guide.

One main difference between incandescent bulbs and LED for your car is filament presence. In the traditional bulbs, electricity runs through the circuit and applies heat to tungsten filament—one for the car’s rear-light and the other is, brake-light. In LED flasher, filament is missing. Here electrical charge forms an arc, leaping across a gap. A ‘reflector’ channelizes the power to glow it up.


How it lights up is very simple. In sharp contrast to the earlier bulbs that used to toss down a large bulk of power, the current consumed by LED immediately runs into flashers and applies heat to a switch inside, of bimetal constituent. When heat twists the shape of bimetal, it prompts the circuit to break—compelling the light to switch off. As a result, the switch in its “off” mode, cools off and turns back to its original shape. Again when you switch on the heat, the circuit is again ‘on’—recreating the cycle. Thus learn electronics always with more applications and less jargon.

Sometimes you may face a little problem with LED flashers if you don’t have sufficient amount of current delivered through the circuit. Inadequate heat bends the bimetal, without deforming them to the right amount. It may lead the signal to glow on—without optimally flashing the circuit on and off.

LEDs viewing angle is very narrow generating a focused stream of light. What happens with regular bulb, is their light disperses all way in irregular pattern, on the contrary, LED element has a light spread range of 20- ,30- degree. Therefore it hits stark light just ahead, but the light loses intensity if you’re viewing it at a bent angle. In order to get a clear radiance, place the LED point exactly towards the car’s rear; don’t keep a tail-light on an angle. Online electronics learning is oozing with fun if you have the right tutorial to guide you.

What Career to Choose after Electronics Engineering Study?


Electrical engineers have career prospects in plenty. Electronics technician with “associate’s degree” in USA earns more than 57 thousand dollars. USA pays incredibly handsome sum to engineers. In Australia, unemployment for aspiring electrical engineers drops below average—the salary increases year after year. Career forecast favours engineers as job growth will rise in 2015-16. Digital electronics video tutorial can also help immensely to be prepared for the shinning future ahead. Similarly UK industry needs more engineer graduates to fill their vacancies.

The reason is quite simple. Electronics power up modern society. Electrical engineers and technicians are needed every day to maintain the enormous networks, circuits and systems. Obviously engineers armed with Electrical knowledge have ushered in a new era of advanced technology in 21st century and this is obviously the one of the most prominent degrees of our time.

Most favoured Employment Sectors for Electronics Engineers

Job sectors where electrical engineers dominate are:

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  • Research/ technology
  • Manufacturing electrical products
  • Hardware/software creation
  • Transport networks development/maintenance
  • Power Supply/maintenance
  • Healthcare

The jobs you’re likely to engage in there are various—you can develop computers, software or maintain hardware. You can also apt for taking care of communication equipments for media. Healthcare sector might recruit you for keeping devices fit for medical monitoring. With an associate’s degree you can also be hired for product evaluating and testing. You may require to measure and adjust equipments.

Electric Engineer Specialization

Of course the job you’ll plump for depends largely on your specialization. Most electronics engineering degree gives you a chance to opt for several specific fields. In general, engineering degree provides you with topics of electronics study as—generation and supply of power. You learn to deal with Electrostatic and Magnetostatic charges. Electronics Science syllabus may also include—analog and digital technology, wireless technology, network theory, computer programming etc. Paying attention to the basic is an essential need of electronics studies. Online video tutorial on Digital Electronics can benefit you more to have practical applications for your project.

For handling electronics science specialization, students need Technical expertise on related topic. General knack for IT, aptitude to deal with numbers. In addition, to be a successful engineer, you also have to have professional communication skills to enhance your potential to be spotted. You need to be comfortable with technical diagrams as well.

10 Ways to Have a Grand Home Theatre Experience


Your TV Experience sucks. Thanks to bunch of cables, huge boxes, poorly-handled connections, endless outputs, input that you have no idea how to deal with. It’s a dreaded job each time to call up for help and snub-nosed mechanics that don’t show up for such “petty issues”.

But, to tell you the truth, it’s no giant work. Home theatre set-up is easier when you have a glimpse of guidelines by digital Electronics video tutorial to check if everything’s well-connected so that your channels runs smooth and you make the most of the system. Do away with the hassles and optimize your cinema experience.

Speaker Positions Simple Guidelines

Follow our electronics tutorial to position your speakers strategically to have the best home theatre experience.

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    If you want the best sound quality, understand the position and role ideally assigned to each speaker. Select the centre of room.

  • Position the speaker’s angles at this focal point. If you’re sitting, the height of the Front Right and left speakers should be kept in ear’s level—45 degree angle form the central seat. It widens the range of sound, surrounding you with the thrill of the big screen.
  • Centre Channel Speaker should be placed either below the display or above.
  • Surround Right/Left speakers should be kept at least 2 and a half feet higher than the viewer. This covers the room with strong special effects.
  • If you have several Sub-woofers, place them on the walls—exactly at the middle. And if you have only one Sub, hang it on the front wall—the screen direction.

Tune Speakers to Boost Sound

Even if you follow the rules mentioned above, you may not get the best of what your speakers might offer. Because, one room may not be similar to the other.

  • You have to give it a listen quite a few times to familiarize with the speakers position, angles and height.
  • Online Electronics video tutorials would suggest you to experiment by repositioning to enhance the sound kick of a home theatre.

Clear Way

  • Make sure that no piece of furniture blocks the path between the centre viewer’s seat and the speakers. The path should be unobstructed.
  • Keep the walls dark to have a rich visual delight. Keeping walls dark and windowless would make you real room fade into black when you dive in the cinema world.
  • Acoustic panels to soundproof the room can give a groovy sound quality completely obliterating the noise and commotion from the world outside. In addition, your neighbours would not complain!

So, pamper your senses with the chill of booming sound system and keep checking electronics video tutorials for more fun stuff. Happy movie-time!

3 reasons why Blue LED shook the Earth

Japanese Genius Trio Wins Nobel—hope of better illumination comes real


Shuji Nakamura, earlier had been just another scientist with a “hopeless project” as labelled by his employer. So, in order to pursue it, he chose spare time. But it proved people wrong, as it always did in the history of innovations, as one call woke him up at the dead of night and announced that he was to receive world’s most prestigious prize for it! Akasaki, Amano and Nakamura—have been awarded 2014 Nobel Prize for Physics for their ground-breaking invention of “Blue Light-Emitting Diodes”.

So, how Efficient is the Latest Blue LED really to bag a Nobel?

    • Traditional lightbulbs that we have been using since the 18th century are inefficient. How they work is by heating up the flimsy filament inside. It is literally a waste of energy as a substantial amount of heat is lost during this conversion. Fluorescents are more economical, in comparison, but nothing comes close to LED. Digital Electronics videos Tutorial shows that an LED produces light as negative electrons get hooked to “positive holes” It happens in the paper-thin semiconductor layer.
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      Scientists stuck to endless experiments for decades but failed to produce blue-light—the one with the highest detectable frequencies—which if converted into light will turn in more energy-saving that burns brighter with less power consumption. LED advantage is singularly outstanding! While the 19th century light-bulbs shone with 16 Lumen/Watt, the 20th century Fluorescent beat it with 70 Lumen per watt. Digital Electronics videos Tutorial illustrates with diagram that a LED glows with 300 Lumens! Blue LED has been just a distant dream for long. Now it has indisputably turned into reality.

  • Why has it been the stumbling point that blocked the path of energy-efficient Blue LED? While red LED already came to the market around 1960 and lit up digital watches and calculators, scientists kept brainstorming for a better solution. Something more cost-effective and powerful. Green and Red LED possess long and medium wavelength. The hardest part of the experiment was to find a material that would emit light with wavelength as short as blue. No one knew how to modify gallium nitride crystal to coax blue light. But these 3 Physics heroes cracked the hitch by sapphire coating aluminium nitride. What this digital electronics experiment did is to usher in a new era of light.