What will the gain become

Assignment Help Other Engineering

Reference no: EM131019481

The BJT common-emitter amplifier of Fig. includes an emitter-degeneration resistance Re

(a) Assuming α?1, neglecting ro, and assuming the current source to be ideal, derive an expression for the small-signal voltage gain A(s) ≡ Vo/Vsig that applies in the mid band and the low-frequency band. Hence find the midland gain AM and the lower 3-dB frequency fL.

b) Show that including Re reduces the magnitude of AM by a certain factor. What is this factor?

(b) and thus one can use Re to trade off gain for bandwidth.

(d) For I = 0.25 mA, RC = 10 kΩ , and CE = 10 μF, find / AM / and fL with Re = 0. Now find the value of Re that lowers fL by a factor of 10. What will the gain become? Sketch on the same diagram a Bode plot for the gain magnitude for both cases.

Reference no: EM131019481

Questions Cloud

Impact of the usage of mind-altering drugs : An anthropologist is interested in the impact of the usage of mind-altering drugs in religious ceremonies. She selects five underdeveloped countries for inclusion in her study. She then selects 10 tribes in each country.

Sources of variability and degrees of freedom : a. Identify the design and give a model for this experimental setting. b. Give the sources of variability and degrees of freedom for an AOV.

Challenges that exist in trying to ensure computer security : Chronologize the development of the cybercrimes of hacking, email wiretapping, phishing, and vishing. Provide specific examples of each type of cybercrime and the challenges that exist in trying to ensure computer security.

Who bears a greater economic burden : Draw a graph illustrating this excise tax. On your graph label the areas that correspond to consumer tax incidence (CTI), Who bears a greater economic burden when this excise tax is imposed? Explain your answer

What will the gain become : Assuming α?1, neglecting ro, and assuming the current source to be ideal, derive an expression for the small-signal voltage gain A(s) ≡ Vo/Vsig that applies in the mid band and the low-frequency band. Hence find the midland gain AM and the lower 3..

Project managers role in executing project tasks : Description of the key elements of a project manager's role in executing project tasks - discuss the project manager's responsibility of directing resources.

Linear statistical model for experiment : Write a linear statistical model for this experiment. Identify all terms in the model and state all conditions that are placed on the terms in the model.

Derive an expression for the midland gain : Select values for CE and CC to place the two pole frequencies a decade apart and to obtain a lower 3-dB frequency of 100 Hz while minimizing the total capacitance. Sketch a Bode plot for the gain magnitude, and estimate the frequency at which the g..

Why the separation of powers and the system of checks : Support your position with APA citations from two or more of the assigned resources required for this discussion. Please be sure that you demonstrate understanding of these resources, integrate them into your argument, and cite them properly. Your..

User Account

All Pages