Transistor behind the progress of the whole world: Working of a Transistor, Use of a Transistor.
If you want to know What is Transistor? working of a Transistor, Use of a transistor, What importance of Transistor? then this post will be helpful for you.
If I ask you what is the most important progress made by humankind. What will you say? Many people will say the case of fire, our species was in evolutionary rats unless we use our power. It gave us warmth to avoid harsh winter, this light has been extended on our days, these destructive forces have given us a weapon against the predators and this makes us cook our food, which allows our brain to grow. Our search of fire not only changed our technologies but our culture and way of life.
But, I will argue that we are currently living in equal or even more time of change. We are living in the time of incredible development, which has already started to change the way we live our lives. A huge percentage of our population linked to the Internet, the human race is much more intuitive than ever before. But what happened due to this amazing tool? What was an invention of our smartphone equipped generation? Transistor
The transistor is information itself, even this post is just a series of ones and zeros beaming across the planet to be interpreted by the processors in your computers. Without the transistor, you would not access the wealth of information online to do gain your knowledge, and you wouldn�t be able to read this post. You would not be able to see any videos on YouTube, You would not be able to chat with your friends on social sites. I would not able to share this post on the internet. So actually, the whole technology depends on the transistor.
The transistor is so simple, but it is the foundation of all our modern computers, Smartphones, Tablets. Digital circuits cannot be made without transistors.
If you do search on the internet 'how a Transistor works ?', you will get many answers. So in this post, I am not saying the deeply about working Transistor. I am only trying to explain the importance of Transistor for the growth of the world.
What is a Transistor?
A Transistor is an Active Device. A transistor is a three terminal semiconductor device. A simple Description about construction and working of Transistor is given below.
A simple Description about construction and working of Transistor:
Silicon is a semiconductor, which means that its operational properties can be prepared by presenting impurities in the crystal structure. The silicon has 4 electrons in its valence shell, it is an outer orbit for electrons and it determines the many chemical properties of the atom. Atoms want 8 electrons in that shell, because of which they are made very stable.
Therefore silicon easily creates covalent bonding to 4 neighboring silicon atoms to achieve those additional electrons. Now if we present those pure impurities in this pure silicon crystal, then we can change how this present holds. If we add phosphorus, in which its valence shell has 5 electrons, then additional electron crystal structure is left free to rotate.
This extra electron charges N-type negatively, from which the name comes. P-type is positive charge because it is doped with boron, in which its valence shell has three electrons. This structure wants to achieve the ultimate electron and steals the electrons from its neighbor's atoms, this is a mobile positive charge, which is called a hole. Thus the conductivity of materials has increased because we have increased the number of mobile tariffs.
When we arrange the N-type and P-type semiconductor in this way and attach the terminal to each, we make the world's most popular transistors. Transistor works on the N-type and P-type junction, due to the interaction of those free electrons and holes. The free electron in P-Type will be migrated to fill those holes in P-Type. They form a boundary layer that is called a decreasing layer which prevents more electrons that pass through each other due to negative charges. But, when a positive voltage is applied on the base, then it rejects the layer of that deficiency and permits electrons to flow through the circuit to complete it.
Therefore silicon easily creates covalent bonding to 4 neighboring silicon atoms to achieve those additional electrons. Now if we present those pure impurities in this pure silicon crystal, then we can change how this present holds. If we add phosphorus, in which its valence shell has 5 electrons, then additional electron crystal structure is left free to rotate.
This extra electron charges N-type negatively, from which the name comes. P-type is positive charge because it is doped with boron, in which its valence shell has three electrons. This structure wants to achieve the ultimate electron and steals the electrons from its neighbor's atoms, this is a mobile positive charge, which is called a hole. Thus the conductivity of materials has increased because we have increased the number of mobile tariffs.
When we arrange the N-type and P-type semiconductor in this way and attach the terminal to each, we make the world's most popular transistors. Transistor works on the N-type and P-type junction, due to the interaction of those free electrons and holes. The free electron in P-Type will be migrated to fill those holes in P-Type. They form a boundary layer that is called a decreasing layer which prevents more electrons that pass through each other due to negative charges. But, when a positive voltage is applied on the base, then it rejects the layer of that deficiency and permits electrons to flow through the circuit to complete it.
Thank you for visiting the website. keep visiting for more updates.
Mr. Muhammad Saqib, M.Sc. (PAK), Research Fellow (PAK), a member of IEEE, is a Fulbright Alumnus and earned his Master’s Degree in Electrical and Power Engineering from University Of Engineering And Technology Taxila, PAKISTAN.
No comments:
Post a Comment