Furthermore, any doubts regarding this concept or electrical and electronics projects , please give your feedback by commenting in the comment section below.
Youre so cool! I dont suppose Ive learn anything like this before. So good to find any person with some authentic thoughts on this subject. Dear sir I am so happy with your explanations only problem with me is that of age I am78 years and wish to learn about electronic. I passed my diploma in in electrical from MSU please keep contact so that I can learn. Thanks Ramesh. Hi Anand, Thanks for your Appreciation.
For further any help please email us on team elprocus. Share This Post: Facebook. Once the collector current increases then the gain can be decreased. If the temperature increases then the gain can also be increased. The flow of current is determined in the circuit which includes wire, switch, battery, and an electronic gadget mostly bulb , this is the most basic circuit, one can show for a basic explanation.
The flow of current is seen when the switch is on. Transistors have three terminals emitter, base and collector which enables it to connect to an external circuit. They are active components of integrated circuits. Their working includes two PN diodes which are connected back to back, it adverts the intensity of current where it is much required.
Both of them are considered good options for amplification yet they have differences in their workings. BJT is an abbreviation of Bipolar junction transistors, it is a type of transistors which uses charged electrons and electron holes as well. It is a current-driven device. They are widely used as an amplifier, switch or oscillator.
It is a current-controlled device, meaning that the amount of current flow between the emitter and collector is controlled by the base current. It is the most used type of transistor. They are a preferred option for low-current applications like switching a low-current relay , LEDs , and amplifiers. We call the BJT a switching device because it does not consume a lot of power to provide regulation.
Is it from outer space? To work as an open switch, a BJT operates in cut-off mode, here there is zero collector current, meaning ideally zero power is consumed by the BJT.
On the other hand, to work as a closed switch, a BJT works in saturation mode, there are a high collector current and zero collector voltage, meaning ideally there is zero power consumed by the BJT. Highlight the term, low-current. BJTs are high-voltage, low-current devices. This means, under normal operating conditions, a BJT can handle tens of amps while withstanding up to one thousand volts and more.
It may sound like combining 5 words just to name a single device is a little too extra, but the name makes perfect sense as it describes both the structure and the working of the device. It is made up of a doped semiconductor. The two regions, the source, and the drain are placed on top of the doped semiconductor. Between the source and the drain , there is an oxide layer that acts as an insulator.
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