Voltage divider with ac bypasses capacitor, Electrical Engineering

Assignment Help:

Voltage divider with AC bypasses capacitor:

2419_Usage of voltage divider bias.png

Figure: Voltage divider with capacitor

The standard voltage divider circuit that is discussed above faces a drawback - AC feedback caused through resistor RE reduces the gain. This can be prevented by placing a capacitor (CE) in parallel with RE, as displayed in circuit diagram.

This capacitor is generally selected to have a low enough reactance at the signal frequencies of interest such that RE is necessarily shorted at AC, so grounding the emitter. Hence feedback is only present at DC to stabilize the operating point, in which case any AC benefits of feedback are lost.

Certainly, this idea can be employed to shunt only a portion of RE, hence retaining some AC feedback.


Related Discussions:- Voltage divider with ac bypasses capacitor

Need for modulation recognition - software defined radio, Need for Modulati...

Need for Modulation Recognition There are so many communication signals all available with different types of modulation and different frequencies. It is necessary to identify

Hamming window and zero padding, This question investigates the effect of e...

This question investigates the effect of extending the data set with zero-padding & of the appropriate time in the workflow to apply a window function. To get finer resolution in t

Histograms or bar chart - quality tools for improvement, Histograms or Bar ...

Histograms or Bar Chart - Quality Tools for Improvement Histograms give an easy, graphical view of accumulated data. It provides the simplest way to evaluate the distributio

Can you explain honorarium?, Can you explain Honorarium? Ans: Honora...

Can you explain Honorarium? Ans: Honorarium is a remuneration for work performed which is intermittent or occasional in character and either so laborious or of such special

Cmos integrated circuit design, design using softwares (LEdit7, LTspice) t...

design using softwares (LEdit7, LTspice) the project has many aspects and I would like you to check them on the website with my personal password. in the project specifications (d

Explain common emitter configuration, Q. Explain Common emitter configurati...

Q. Explain Common emitter configuration? Common emitter configuration: In this circuit the emitter is common to both input and the output.Such a configuration is also known as

Determine harmonic factor hf of the input current, Q. Consider a full-wave ...

Q. Consider a full-wave single-phase bridge recti?er circuit with dc motor load, as shown in Figure (a). Let the transformer turns ratio be unity. Let the load be such that the

Humming , I am getting humming noice in speaker when I connect to laptop on...

I am getting humming noice in speaker when I connect to laptop on ac when I put it on dc (battery) it''s dispear . Please help

Compute the maximum flux passing through the coil, Q. The 50-turn coil in t...

Q. The 50-turn coil in the configuration of Figure is rotated at a constant speed of 300 r/min. The axis of rotation is perpendicular to a uniform magnetic flux density of 0.1 T. T

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