Explain the high-frequency response of fet amplifier, Electrical Engineering

Assignment Help:

Q. Explain the high-frequency response of FET amplifier?

 The analysis for the high frequency response of the FET amplifier is almost the same as that of the BJT amplifier. The FET amplifiers are interceded and wiring capacitances that will determine the high frequency characteristics of the amplifier. The capacitors C(6) and C(7) typically vary from 0.1 to 10 pF, while the capacitance C(8) usually vary from a bit higher range from 0.1 to 1 pF. Since the network is an inverting amplifier, a Miller effect capacitance will appear in the high frequency ac equivalent network. At high frequencies, Ci will approach a short circuit equivalent network and Vgs will drop in value and reduces the overall gain. At the frequencies where Co approaches its short circuit equivalent, the parallel output voltage Vo will drop in magnitude.

654_Explain the high-frequency response of FET amplifier.png

 

R(th) o = R (4) || R (5)

Co = C (5) + C (8) + Cn,

Cn = ( 1 - (1/A)) * C(7)


Related Discussions:- Explain the high-frequency response of fet amplifier

Standard deviation of mean, For large number of measurements the mean is ca...

For large number of measurements the mean is calculated by taking a sample. Each sample that is taken has a mean. The mean of various sample difference from sample and are known to

Mention the three transistor configurations, Q. Mention The Three Transisto...

Q. Mention The Three Transistor Configurations? The three transistor configurations are 1)Common emitter configuration 2)Common base configuration 3)Common collector c

Explain the cmp instruction, Explain the CMP instruction . CMP: The comp...

Explain the CMP instruction . CMP: The comparison instruction is a subtraction which changes only the flag bits; the destination operand certainly not changes. A comparison is h

What do you understand by bezier surface, What do you understand by Bezier ...

What do you understand by Bezier surface ? Discuss Determine the equivalent bicubic formulation of a closed and open cubic B-spine surface. a) What do you understand by solid

Digital electronics, With the use of clocked JK flip-flops, draw and explai...

With the use of clocked JK flip-flops, draw and explain the working principle of a 3-bit binary ripple counter.

Explain working of public switched telephone network, Q. Explain working of...

Q. Explain working of Public Switched Telephone Network? Public Switched Telephone Network (PSTN) accommodates two kinds of subscribers: private andpublic. Subscribers to priv

FET operation, ON output plot of a JFET n-channel transistor if ID is close...

ON output plot of a JFET n-channel transistor if ID is close to IDSS does the value of VGS close to VP?

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