Hello everyone, how are you? It is a pleasure to greet you. I hope you are in good health. I am professor
Reiner Mairena and today I am meeting with you to talk about a very interesting topic.
Our topic today has to do with basic electronics. I hope
this knowledge that I bring you will really help you today. We will be talking about diodes
in all the small devices that surround us. We will find small
components that are very important to we will call them diodes
2 the topics that we will be developing today around electronics would be
a brief historical review of what diodes are we will be looking at what the concept is
and we will also be studying the main parts of this component that we will see
that the operation of diodes and we will also be looking at the types of polarization
at the beginning we will be talking about the history of diodes who discovered it well in the year
1872 73 a physicist Frederick Rutger discovered a principle of predation of thermal diodes
yesterday discovered that a electroshock positively charged opium could be discharged
upon approaching a hot piece of metal without the need for The fact that it touched it did not
happen the same with a negatively charged opium electroshock, reflecting this that
the flow of the current possibly only occurred in one direction
as a concept we have that a diode is a two- terminal
electronic component that works as a device semiconductor
of electric current or electrons allowing the circulation
of electric current through it in a single use with only one sense
so that we understand this if we have a real image of what an iodine is
this means that if the electrical consciousness For in a sense of left of right
the electrons will flow instead if the electrons have of right and left
thing and there will not be as electrons so that we understand this we need to study
well now we will see the main parts of components a diode will be composed of a hand
and a cathode in the case of the nova is symbolized with the date on which it is symbolized with the
vertical treatment in physics it is said that the canon is the terminal of a battery or a source of
true positive current and the cathode would be the negative terminal well now we know that diodes
are semiconductors and that it also converts into alternating current and direct current and that Its
main parts are composed of one that is the anode, the positive part and the negative part that
is the cathode.Now how we could polarize it so that polarization occurs in any semiconductor
device , a voltage is needed to apply an electric current so that it
can work in a certain way in this case we will use the diodes we can
polarize them in two different ways in a direct way and inversely this phenomenon occurs
when we have a material type d or a material type p are the two areas of a diode well now
so that Let's analyze the phenomenon in each area, we will install some terminals now so that
the transfer or nontransfer can occur. nsference of electrons or electric current to this
a voltage must be applied so when we polarize a diode the positive charge of the
battery we are going to connect it to the area n and the negative charge of the battery to the side p the phenomenon that
occurs here has to do with the law of charges, in this case, the positives attract the negatives in
the area of ​​n and the negative charge of the battery will attract the positive charge in the area p of the diode,
this will cause a barrier to form in the center of the diode and not electrons will be able to pass
from one area to the other and in this way as there will be no transfer there will be no
electric current and this polarization will be known as reverse polarization of a whole now we
reverse the polarity of the battery in this case we will find that the positive charge
of the battery will be connected to the positive charge of the diode this will cause the positive charge of
the battery to repel the positive charges of the diode causing a transfer before the
pole positive alcohol or negative the same happens at the other end the negative charge
of the battery will repel the negative charge of the negative part of the diode thus causing
a transfer by transferring electrons from pole n to pole p of the god
will be given a transfer and it is there where the circulation of the electric current occurs in
an effective way, this type of polarization is called polarization of a direct diode
in short an industrial diodes are used to rectify the current as well
as closed contacts and open to turn on and off some very young
industrial equipment I say goodbye to you but you liked this video and the next one we will be
seeing the classification in parts of 22 I say goodbye wishing you all luck