Basic Theorems in Digital Electronics

Digital Electronics is a core and important subject of Electronics and Communication Engineering. Its simple and easy to understand. The theorems used in Digital electronics minimizes the switching function of digital circuits.

The main theorem is "De-Morgan's Theorem"

Voltage-Current (V-I) Characteristics

Voltage and Current (V-I)characteristics of many devices are useful to know the nature of the device. Here are some V-I characteristics

Switches in Electronics

This time we shall be dealing with the practical application of the basic transistors; be it BJT or MOSFET each of these act as a switch in vivid applications. By the not just a switch!! These are high performance switches which work at very high switching speeds...may be in fraction of secs or milli secs!

Now, What do you understand by the term Switch??

Definition:  A switch is a device for making and breaking the connection in an electric circuit.

Diodes: Types and Applications

Diodes is a two terminal electronic device which allows the flow of current in only one direction and high resistance in opposite direction. The most common diode used currently are p-n junction diode. The diodes are of different types as illustrated below:

• p-n junction Diodes
• Avalanche Diodes
• Zener Diodes
• LED(light emitting diode)
• Photo Diodes
• Sckottky Diodes
• Tunnel Diodes
• Gunn Diodes
• Laser Diodes
• Pin Diodes

Analog and Digital Communication...!

The essence of communication is an exchange of information. From the very dawn of human civilizations it has been an endless effort to find means and ways of sharing thoughts, ideas, expressions and messages conveying much value. Language was the first means of communication, be it Arabic or Latin; which was gradually enriched to make the mode of communication more effective. This made possible the exchange of written messages or documented information that could not only be sent to distant locations but could also be handed down the generations and preserved for posterity. Many other modes of sending messages evolved from the early days of human interaction. Tireless endeavors at finding ways and means of conveying information effectively evolved gradually into many time-tested communication techniques.

 The History...

Basic Electronic Devices

The blog will deal with all your basic doubts of basic electronics, so here in this post you will learn some basic electronic devices.
Ever wondered while your faculty suddenly asks you to tell some basic electronic devices, then what you should reply....! The answer is below....

Here is the list of basic electronic devices:

• Resistors
• Capacitors
• Diodes
• Transistors
• Transducers
• Sensors
• Switches
• Detectors 

Resistors: A Resistor is a element which restricts the flow of current and dissipates that energy into heat.

So when a current flows through a resistor then it restricts the flow of current but that energy is converted into heat as energy can neither be destroyed nor created. We can take example of a resistor connected in series with LED (Light emitting diode) to limit the current passing and hence protecting the LED to get damaged.

Resistor Color Coding

In the present day scenario where most of us have digital gadgetry right in our pockets we tend to forget our basic need for understanding of "Color Coding".

Despite us being able to use the handy multi-meter it is faster and easier to just look and give the ohmic value of the Resistor. Well, here guys we'll be giving you the very famous jargon of color coding which has been in use since time immemorial.
So herez the thing just like we read from left to right, this resistor coding is also done in a similar fashion. The niche is to read it right. Since most of the tolerance band is either gold or silver in color. So keep that to your extreme right and hold it in your hand as depicted in the above figure.