Transistors Operation
Transistors are controllers for electricity. They’re like a sandwiches with layers that either have extra electrons (the n-type) or missing some electrons (the p-type). These layers decide how easily electricity can move through the transistor.
NPN Transistor Operation
In an NPN transistor, electrons can easily switch from one side (the base) to the other (the collector) with very minute voltage. The base deciding how many electrons get to pass through to the other side.
It works like a water valve which control how much water flows through a pipe. When the transistor is fully ‘on,’ it’s like opening that valve wide —electricity flows freely. When it’s ‘off,’ it’s like shutting that valve tight electricity stops. Transistors can also adjust the flow of electricity between fully ‘on’ and ‘off.’
In an NPN setup, when you make one part of the transistor a bit more positive than the other, it excites the electron to move. Electrons cleverly move from one side to the other, avoiding obstacles. The movement creates a current that powers the circuit which is connected to the transistor. So, transistors control electric flow with precision.
PNP Transistor Operation
In a PNP transistor setup, the layers in the transistor are now p-type (with extra electrons) and n-type (lacking some electrons).
In a PNP transistor, the base, control the movement of “holes” (missing electrons) from one side (the base) to the other (the collector) with the application of voltage. When the PNP transistor is fully ‘on,’ it permits a flow of electricity. Conversely, in the ‘off’ state, it tightly restricts the flow.
By making one part of the transistor more negative than the other. Holes moves adeptly, creating a current that energizes the connected circuit.
In summary, PNP transistors, is like a reverse NPN, offer precise control over the electric flow but operate with an inverted polarity, which shows the range of transistor technology.
Types of Transistors
Transistor is similar to a semiconductor device which when used either conducts or insulates electric current or voltage. Prepared by three American physicists, John Bardeen, Walter Brattain, and William Shockley in the year 1947. There are different types of transistors based on their working principle.
This article deals with various types of transistor in detail along with introduction of transistor, its working and applications
Table of Content
- What is a Transistor?
- Types of Transistors
- Bipolar Junction Transistor (BJT)
- Types of Bipolar Transistor
- Difference between NPN and PNP Transistor
- Configuration of BJT
- Unipolar Junction Transistor
- Field Effect Transistor
- Junction Field Effect Transistor
- MOSFET
- Insulated Gate Bipolar Transistors
- Avalanche Transistor
- Schottky Transistor
- Diffusion Transistor
- How Do Transistors Work?
- Transistors Operation
- Transistor Application