Since transistor is a three terminal device, therefore, it can be connected in a circuit in three different ways: Common-base configuration Common-emitter configuration Common-collector configuration Definition – In this configuration, emitter terminal of transistor is common between the input and output circuits. The graphs showing the relationship between different currents and voltages of a transistor … Read more
Since transistor is a three terminal device, therefore, it can be connected in a circuit in three different ways: Common-base configuration Common-emitter configuration Common-collector configuration Definition – In common base configuration, base terminal of transistor is common between the input and output circuits. The graphs showing the relationship between different currents and voltages of a … Read more
Transistor Manufacturing Techniques The following four techniques are employed to manufacture transistors: 1. Grown technique. A PNP transistor is manufactured by drawing a single crystal from the melt of Germanium or silicon having p-type impurities. When the crystal is drawn, n-type impurities are added to form the base region of the transistor. Then p-type impurities … Read more
Junction Transistor Ordinarily, junction transistor is a three terminals Semiconductor device. A transistor is formed when a thin layer of one type of the intrinsic semiconductor is sandwiched between two thick layers of other types of extrinsic semiconductors. For Example 1. When a thin layer of p-type semiconductor is sandwiched between two thick layers of … Read more
What is tunnel diode? A tunnel diode is a PN junction diode having a very small depletion region and a very high concentration of impurity atoms in both p and n regions. The tunnel diode was invented by Dr. Leo Esaki. Symbol of tunnel diode Construction and Working of Tunnel Diode Tunnel Diode Construction The tunnel … Read more
Optical Fiber communication system and Application of optical fiber communication system A technology used for transmitting information (data, speech, music, etc.) from one place to another place that uses light as the carrier of information through Optical Fiber is called Optical Fiber communication. The simple block diagram of the Optical Fiber communication system is shown … Read more
Breakdown Voltage of Diode what is breakdown voltage ? The voltage across reverse Biased PN junction increase to a certain value, called breakdown voltage of diode, the high reverse current is caused which may damage the junction diode. There are two mechanism by which breakdown can occur when PN junction is Reverse biased: Avalanche breakdown. … Read more
When a p-type semiconductor is brought in close contact with an n-type semiconductor by stable means, the arrangement of both the semiconductors is known as the PN junction. The interface of p-type and n-type semiconductors is called Junction. Two independent p-type and n-type semiconductors pressed against each other do not form a PN junction. Introduction … Read more