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Enhancement MOSFET : Working, Differences & Its Applications

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  Enhancement MOSFET : Working, Differences & Its Applications A MOSFET (metal–oxide–semiconductor FET) is one kind of field-effect transistor with an insulated gate that is mainly used for amplifying or switching signals. Now in analog and digital circuits, MOSFETs are used more frequently as compared to BJTs. MOSFETs are mainly used in amplifiers because of their infinite input impedance so it allows the amplifier to capture nearly all the incoming signal. The main benefit of MOSFET as compared to BJT is, that it requires nearly no input current for controlling the load current. MOSFETs are classified into two types enhancement MOSFET and depletion MOSFET. So this article provides brief information on the  enhancement MOSFET  – working with applications. What is Enhancement Type MOSFET? The MOSFET which works in enhancement mode is known as E-MOSFET or enhancement mosfet. Enhancement mode means, that whenever the voltage toward the gate terminal of th...

Bipolar Junction Transistor

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  What is Bipolar Junction Transistor? The concept of BJT refers to a three-terminal semiconductor device consisting of two p-n-junctions that are formed by sandwiching either p-type or n-type semiconductors between two p-type semiconductors. Transistors can be used to transfer input signals through the circuits having lower to higher resistance. A BJT may also be implemented as a true solid-state switch in electrical circuits and can also be used to increase the strength of a weak signal. Symbol of BJT Construction of BJT Combinations of p-n junctions, or  build a BJT i.e. a BJT is made of p and n type  semiconductors . The two junctions divide the three semiconductors of a BJT which are: the base, collector, and the emitter. The emitter and collector part of transistor are placed on each side of the base. Emitter (E) :  The outermost layer of a transistor, is  commonly known as the emitter, it is heavily doped with N- type or...