Simplified operation on transistor, Electrical Engineering

Assignment Help:

Simplified operation:

1165_Simplified operation on transistor.png

Figure: Simple circuit to show the labels of a bipolar transistor.

The essential value of a transistor comes from its capability to make use of a small signal applied among the one pair of its terminals to control a much larger signal at other pair of terminals. This property is termed as gain. A transistor can control the output of it in proportion to the input signal; i.e., it can work as an amplifier. On the other hand, the transistor can be employed to turn current on or off in a circuit like an electrically controlled switch, in which the amount of current is ascertained by other circuit elements.

The two sorts of transistors have little differences in how they are employed in a circuit. A bipolar transistor comprises terminals labeled base, collector, and emitter. A small current at the base terminal (i.e., flowing from the base to the emitter) can control or switch a much larger current among the collector and emitter terminals. For a field-effect transistor, the terminals are entitled as gate, source, and drain, and a voltage at the gate could control a current among the source and drain.

The figure presents a common bipolar transistor in a circuit. Charge will flow among the emitter and collector terminals depending upon the current in the base. As internally the base and emitter connections behave such as a semiconductor diode, a voltage drop develops among the base and emitter while the base current exists. The amount of this voltage depends upon the material the transistor is made from, and is considered to as VBE.


Related Discussions:- Simplified operation on transistor

Explain shunt-field control process, Q. Explain Shunt-field control process...

Q. Explain Shunt-field control process? Shunt-field control, armature-resistance control offers a constant-torque drive because both flux and, to a first approximation, allowab

Transistor, why BETA a current gain parameter of common emitter amplifier i...

why BETA a current gain parameter of common emitter amplifier is temperature dependent?

Form factor, why voltages are in multiple in 11

why voltages are in multiple in 11

Explain a tube well, Q. Explain a Tube Well? Method of restoring or inc...

Q. Explain a Tube Well? Method of restoring or increasing the capacity of tube well is known as developing a Tube Wells. This is done to eliminate bridging of fine particles on

How 8255 programmable peripheral interface can operate, What are the differ...

What are the different modes in which 8255 Programmable Peripheral Interface (PPI) can operate? Twenty Four I/O lines in 38-bit port groups - A, B and C A and B can be

Determine the shaft power output, Determine the shaft power output: A ...

Determine the shaft power output: A 6-pole, 50 Hz, 3-phase induction motor running on full load develops a useful torque of 180 Nm when the rotor emf frequency is 2 Hz. Determ

Current flow through the channel of a jfet after pinch off, Q. How does cur...

Q. How does current flow through the channel of a JFET after pinch off? It is seen that above the pinch off voltage at a constant value of VDS (saturation drain current, ID inc

Compute the area of each plate, Q For a parallel-plate capacitor with plate...

Q For a parallel-plate capacitor with plates of area A m 2 and separation d m in air, the capacitance in farads may be computed from the approximate relation Compute the a

Decrease in the dollar return on u.s. deposits, Q. Is a depreciation of the...

Q. Is a depreciation of the dollar/euro exchange rate correlated with a decrease in the dollar return on U.S. deposits? Answer: No, suppose that the Interest Parity is maintai

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd