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

Central energy conservation fund, Central Energy Conservation Fund Thi...

Central Energy Conservation Fund This fund is to be set up at the Centre to develop the delivery mechanism for large-scale adoption of energy efficiency services like as perfo

What are the modes used in display modes, What are the modes used in displa...

What are the modes used in display modes? 1. Left Entry mode In the left entry mode, the data is going into from the left side of the display unit. 2. Right Entry Mode

#electrical wiring, how to draw electric circuit for staircase wiring using...

how to draw electric circuit for staircase wiring using 3 two way switches?

Management of Initiatives and Focus - KPI, Management of Initiatives and Fo...

Management of Initiatives and Focus - KPI In this era of fierce competition and to have the competitive edge, it is significant to conserve the material and human resources th

What are program invisible registers, What are program invisible registers?...

What are program invisible registers? The global and local descriptor tables are determined in the memory system. So as to access and give the address of these tables, the prog

Determine gold and silver are which type of materials, Gold and silver are ...

Gold and silver are (A) Dielectric materials (B) Low resistivity conducting materials. (C) Magnetic materials. (D) Insulating materials. Ans: Gold and si

Diac - power semiconductor devices , Diac Diac is a device which  has d...

Diac Diac is a device which  has di electrode  and as its name suggests it works  on AC. The cross  sectional view of a diac is shown if the four layers are PNPN and PNPN .

Electronics, what is the difference between half &full wave rectifier

what is the difference between half &full wave rectifier

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