Category: semiconductor, electronics, holes
-
Bipolar Junction Transistors (BJT), Lecture-XV and XVI.
Today we will discuss another line of application of the pn semiconductor diodes: the so called bipolar junction transistors or BJT in short. There are two ways in which pn junction diodes can be joined together sharing a common P or N terminal. This produces 3 layer, 2 junction, 3 terminal devices. Such devices are…
-
Photo-diodes, lecture-XIV.
In our last lecture we discussed the concept and working of a particular type of diode which gets an immense application in solid state lighting technology in today’s world: the light emitting diode or the LED in short. There we saw how its capable of converting the electrical energy into optical energy. There is yet…
-
The Light Emitting Diodes, Lecture-XIII.
We have been discussing a lot about what are diodes, their characteristics and their application in the electrical and electronics industry. You must have heard about the durable and power efficient LED bulbs. Do you know they are made from diodes? YES. Semiconductors: they are ubiquitous. Today we will discuss about the light emitting diodes.…
-
Center tapped full wave rectifier, Lecture-X
In our last two lecture we discussed in all detail the half wave rectifier which is constructed from an ideal diode and studied its various parameters such as its rectifier efficiency and transformer utilization factor. Please have a look at these lectures as the same will have an indubitable bearing on what we will discuss…
-
Diodes as half-wave rectifiers, Lecture-VIII and IX.
Rectification is an arrangement where AC current is converted into unidirectional current by employing diodes. Such devices are known as “rectifiers” and they offer low resistance to the current in a specified direction, while offering very high resistance in the opposite direction. If a semiconductor diode is supplied with AC current it is “forward biased”…
M Dash Foundation: C Cube Learning 