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

Control, Ask The goal of this project is to model a system and to design a ...

Ask The goal of this project is to model a system and to design a controller for the system so that the closed-loop system performs satisfactorily. We want to accurately positio

Difference between photography & holography, 1.       In ordinary photograp...

1.       In ordinary photography, each part contains information of the original object separately and in case some part of the object is destroyed then the information of that par

Advantages of the n-channel mosfet over the p-channel, Q. What are the adva...

Q. What are the advantages of the n-channel MOSFET over the p-channel? The main advantage of the n-channel MOSFET over the p-channel is due to the fact that charge carriers in

Two quadrant type a chopper or class c chopper or reversible, Two Quadrant ...

Two Quadrant Type A Chopper or Class C Chopper or Reversible Chopper The  quadrant type A Chopper  is also  known as reversible chopper   because  the polarity of the load cur

Explain rs232c standard, Explain RS232C Standard. RS232C: 1. Stand...

Explain RS232C Standard. RS232C: 1. Standard described for asynchronous communications where there is given timing among data bits and no fixed timing among the characters

Electric Machines, Ask questiDesing a suitable double - layer lap windingon...

Ask questiDesing a suitable double - layer lap windingon #Minimum 100 words accepted#

Define amplification factor and drain resistance, Q. Define amplification f...

Q. Define amplification factor, drain resistance and transconductance and derive the relationship between drain resistance and trans conductance? Drain resistance It is the

Show advantages and disadvantages of a r-c couple amplifier, Q. What are th...

Q. What are the advantages and disadvantages of a R-C coupled amplifier. Advantages · It has excellent frequency response. The gain is constant over the audio frequency ra

Components of gis - methods, Methods: A successful GIS operates accordi...

Methods: A successful GIS operates according to a well-designed plan and business rules that are the models and operating practices unique to every organization. GIS gives i

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