What’s the difference between Electrical & Electronics Engineering?

October 17th, 2014 | Make a comment | Posted in Others
Tags: , ,

One of our member sent us this article few weeks ago. He wanted to debate on this question: the important differences between electrical and electronics. Check the main differences according to this member…Will you agree?

These are very different areas of engineering discipline which are easily confused and hard to differentiate. This is because they both involve the intensive application and transfer of electricity around numerous mechanical components.

However, that is where their similarity comes to an end. To adequately know the proper distinction of the two, there are quite a number of factors to be analyzed about the two relatively comparable disciplines.

Definition

Difference Between Electrical & Electronics Engineering 1

Basically, Electrical engineering is the engineering field that handles the study and the application of electrical power, electronics, and electromagnetic forces.

Electronics engineering is the discipline in which active electrical and non-linear components, for instance semiconductor devices, particularly integrated circuits, diodes, and transistors, are applied in the design of electronic devices, systems, and circuitry.

Read the rest of this entry »

Diode Characteristics

October 13th, 2014 | Make a comment | Posted in Electrical distribution
Tags: , ,

Last time our devoted member Nasir introduced you to semi conductors, now let him tell you about the characteristics of the diode, an important component.

Diodes are the basic types of power semiconductor switching devices. In this article we are going to discuss some of the basic characteristics of diodes and their properties. It is a two terminal device with one terminal marked as positive and the other one as negative.

If we talk with respect to the semiconductor properties of the diodes, the two terminals are the terminals of the pn-junction. The p region is known as the anode electrode and the n region is known as the cathode electrode.

Diode Characteristics 1
Read the rest of this entry »

How to Work Around Common Low Voltage Problem Areas?

October 10th, 2014 | Make a comment | Posted in Electrical Safety
Tags: , ,

Last month, one of our members’s contribution had told you how to work around LV systems as an electrical engineer. Now enjoy the part 2 with more details…

Introduction

Low electrical voltage is any voltage at or below 750V. In some regions, it can be used to define extra low voltage that is at or below 1000V. Common low voltage areas include residential utility lines, as well as light industrial application. With proper precaution, working around LV is safe. However, as with all matters electricity, sometimes things go horribly wrong. The following are key problem LV areas.

Working Alone

In most of the cases, small projects only require a solitary person to sort it out, to reduce the interruption of routines that result from switching off the mains. Danger abounds in working alone, regardless of the size of the project.

While space restrictions and number of staff may deem working alone a necessity, there are some measures that should be adopted. They include the following:

  • Clear written procedure for checking on someone working in isolation
  • Emergency responses in case the worker cannot be contacted, especially those working on the rooftops or underground
  • Clear liaising on the check up times. This should be done between the engineer in charge, the person designated for the check up and the worker in isolation

Read the rest of this entry »

Ancient Electrical Myths and Facts – open to debate

October 7th, 2014 | Make a comment | Posted in Others
Tags: , ,

New article in our mailbox from last week about the use of electricity in the ancient civilizations. Pretty interesting isn’t it? But do you believe in it or not? You can also send us articles by mail.

Introduction

What is the purpose of this article? It’s pretty simple, actually. In this article, I wish to reinforce the fact that the ancient civilizations were far more technically developed than what most people think. And, most important of them all, I want to discuss about the existence of electricity in the ancient times.

Though the debate between the ‘so called experts’ in finding whether ancient electricity is a myth or fact continues, let us have a look at the following evidences that show the traces of existence of ancient electricity:

Read the rest of this entry »

Introduction to Semi Conductors

October 3rd, 2014 | Make a comment | Posted in Electrical distribution
Tags: , ,

New series of articles by our devoted member Nasir. This time he will talk about Semi Conductors in almost 10 articles.

Remember you too can send us articles about whatever you want by sending us a mail!

Introduction

Here we are going to start a detailed tutorial on power semiconductor switching devices, which will give you a brief but explanatory overview of semiconductors and the semiconductor switching devices used in power electronic circuits. So taking a traditional start with the definition of Power semiconductor switching devices, the first question that comes to our mind is that ‘what basically power semiconductor switching devices are’?

The term is self-explanatory and speaks for itself, that power semiconductor switching devices are the semiconductor switching devices which can have only two states, i.e. on or off, hence acting like a switch.

  • They are used in power electronic circuits and like a switch they cannot have a third state.
  • They are becoming extremely popular now a days due to their fast switching frequency and appealing properties
  • Some commonly used examples of power semiconductor switching devices include diodes, transistors, thyristors etc. But first I would like to revise what basically semiconductors are.

Introduction to Semi Conductors 1
Read the rest of this entry »

Electrical engineering Community is proudly powered by WordPress
Entries (RSS) and Comments (RSS) and license Creative Commons License