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Q. Explain about Junction FET?
The JFET is a three-terminal, voltage-controlled current device, whereas the BJT is principally a three-terminal, current-controlled current device. The advantages associated with JFETs are much higher input resistance (on the order of 107 to 1010 ), lower noise, easier fabrication, and in some cases even the ability to handle higher currents and powers. The disadvantages, on the other hand, are slower speeds in switching circuits and smaller bandwidth for a given gain in an amplifier.
Figure shows the n-channel JFET and the p-channel JFET along with their circuit symbols. The JFET, which is a three-terminal device, consists of a single junction embedded in a semiconductor sample.When the base semiconductor forming the channel is of a n-type material, the device is known as an n-channel JFET; otherwise it is a p-channel JFET when the channel is
formed of a p-type semiconductor. The functions of source, drain, and gate are analogous to the emitter, collector, and base of the BJT. The gate provides the means to control the flow of charges between source and drain.
A feedback control system with the configuration of Figure has the following parameters: K p = 0.5 V/rad, K a = 100 V/V, K m = 2.7 × 10 -4 N·m/V, J = 1.5 × 10 -5 kg·m 2 , and
Q. Explain Global Positioning Systems? Modern communication systems abound in practice: cellular phones, computer networks, television satellites, and optical links for telepho
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First section Aim: the aim of this project is to produce a storage scope using a PIC. In this project, several samples were taken from an analog signal and stored in the memo
To demonstrate a practical method of testing semiconductor diodes.
FIG. 2 Car Park Simulation Consider the above diagram, FIGURE 2, of the car park. The object of this assignment is to write a program to operate the barriers to allow the cars in
We are given an M=32 pulse sequence of slow time data, collected with PRF = 10 kHz. We want to use a Cooley-Tukey radix 2 FFT algorithms to compute the Doppler spectrum of the dat
Q. Explain working of Bipolar junction transistors? The family of bipolar junction transistors has two members: the npn BJT and the pnp BJT. Both types contain semiconductor ju
Design a low noise amplifier using an Infineon RF transistor BFP640. The amplifier is to be used to amplify the L2 GPS signal and so the centre frequency is 1227MHz and bandwidth 4
Partial Indicators Method The partial indicators technique consists of calculating various measures of the financial, operating, commercial, and quality of a business's perfor
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