1/5mycircuits9.blogspot.com/2012/05/rc-coupled-amplifier_07.html

?

Subscribe

Follow Us!

Be Our Fan

MENU

TOTAL VISTORS

5

FOLLOWERS

RC COUPLED AMPLIFIER20:29 TITTU THOMAS NO COMMENTS

The figure shows the circuit diagram ofan RC COUPLED AMPLIFIER.

The circuit shown here using Voltage div ider bias.

Rc coupled amplifier is commonly used to amplify the giv en input signal.

Here we considering the sinusoidal input signal and at output

terminals we get the amplified v ersion of input signal.

ie; Amplitude increased by a factor equal to the gain of the amplifier.

Try our RC COUPLED AMPLIFIER VOLTAGE GAIN CALCULATOR

WORKING Of RC Coupled Amplifier

Consider the positiv e going wav e of sinusoidal signal.

ie; Rising from zero to peak v alue and v icev ersa.

Search

Popular SUBSCRIBE HELP US

SHARE

POPULAR POSTS

SIMPLE INVERTER CIRCUITSIMPLE INVERTER CIRCUIT

230V230V

INTRODUCTION TO SIMPLE

INVERTER CIRCUIT Now i am

with another SIMPLE project,

INVERTER. I hope you are

already familiar with the te...

SIMPLE WATER TANKSIMPLE WATER TANK

OVERFLOW ALARM CIRCUITOVERFLOW ALARM CIRCUIT

"WATER IS PRECIOUS, SAVE

EVERY DROP" No Living Beings

exist without Water. So we have

to save water in any way that you

can. A ...

SIMPLE IR REMOTE SWITCHSIMPLE IR REMOTE SWITCH

CIRCUITCIRCUIT

INTRODUCTION TO SIMPLE IR

REMOTE SWITCH CIRCUIT

Most of the Remotes used in our

home appliances are based on

IR ( INFRARED ). INFR...

SUBSCRIBE NOW!!

Don't miss our fresh Articles any more..... Get

them right into your INBOX.

SUBSCRIBE NOW

Enter your email address... Submit

WE WANT YOUR FACE TOOHERE!

6 8 4 9 4

HOME ABOUT MYCIRCUITS9 ABOUT ME PRIVACY POLICY DISCLAIMER

2/5mycircuits9.blogspot.com/2012/05/rc-coupled-amplifier_07.html

Join this siteJoin this sitew ith Google FriendConnect

Members (17) More

»

Already a member? Sign

in

Due to transistor parameters, any v ariation in the input terminal(base) may

cause a large v ariations in the output terminal(collector) in common

Emitter configuration.

Thi s i s the basi c pri nci pl e used for Rc coupl ed ampl i fi er, to ampl i fy

the si gnal .

If the input signal rises from zero in the input, it cause a large

rise in v oltage (amplitude)

at the output terminal.

And similarly for negetiv e going wav e.

Inorder to achiev e faithful amplification of input signal, the Q point

must be selected in the middle of DC Load Line.

To stabilize the Q point in the middle and make it independent of

temperature v ariations we are using v oltage div ider bias.

WAVE FORMS

of Rc Coupled Amplifier

INPUT WAVE

OUTPUT

COMPONENTS AND THEIR USES

R1 and R2

¤ R1 and R2 prov ides necessary biasing to the Transistor Q.

¤ It will stabilize the Q point near the middle of DC Load line.

Find us on Facebook

Prav in Edd Nuthan Jaikant

Leghrisse A rogundade Rolland Kelv in A nkit

Mycircuits9

127 people like Mycircuits9.

Like

Facebook social plugin

3/5mycircuits9.blogspot.com/2012/05/rc-coupled-amplifier_07.html

C in and C out

¤ It is called as Coupling Capacitor.

¤ It prov ides coupling to the input and output signals.

It helps to achiev e maximum power transform

Rc and Re

¤ It helps to control or drop the supply v oltage Vcc.

¤ It giv es a safer limit of v cc for collector and emitter terminals.

Ce

¤ Emitter capacitor, it also called as By pass capacitor.

¤ It will by pass ac current and restricts dc,

Due to this only dc v oltage will drop across emitter resistor.

¤ If we neglecting the By pass capacitor, ac v oltage will drop across

Re, which may reduce the gain of amplifier.

ADVANTAGES OF RC COUPLED AMPLIFIER

¤ We can be able to amplify any signal in Audio frequency range.

¤ It prov ides faithful amplification of input signal.

¤ Simple circuit diagram

¤ By using the transistor BC1 07 it prov ides an amplification factor of

nearly 50.

ie; it prov ides an output 50 times greater than the input.

DISADVANTAGES OF RC COUPLED AMPLIFIER

¤ Bjt Amplifier will oscillates on higher frequency range such as

radio frequencies.

¤ Band width is comparably narrow than JFET amplifier

DC BIASING CONDITIONS

¤ Voltage drop across collector resistor Rc

should be equal to 40% of Vcc.

¤ Voltage drop across emitter resistor Re

should be equal to 1 0% of Vcc.

¤ Voltage drop across Collector-Emitter terminal should be equal to 50% of Vcc.

Try Our RC time constant calculator

Note:: The dc biasing conditions should be check only after remov ing

all the capacitors.

Try our Frequency Calculator

BACK TO ELECTRONICS HOME

Single Tuned Amplifiers

4/5mycircuits9.blogspot.com/2012/05/rc-coupled-amplifier_07.html

PRECISIONRECTIFIERS

HALF WAVEAND ...

OP AMPCOMPARAT

ORTUTORIAL

ZEROCROSSING

DETECTORUSING OPAMP

THE OP AMPPEAK

DETECTOR

AUDIOAMPLIFIER

CIRCUITUSINGLM386

New er Post Older Post

Posted in : a m plifier ,tu tor ia ls

Related Posts

Home

Tag Cloud

Website design tutorial Kitchen Appliances

Advantages of solar panels

0 comments:

Post a Comment

Have an Healthy Conversation

Enter your comment...

Comment as: Google Account

Publish Preview

Links to this post

Create a Link

Copyright © 2011 Copyright © 2011 MYCIRCUITS9-Electronics projects, tutorials and circuit diagramsMYCIRCUITS9-Electronics projects, tutorials and circuit diagrams -All Rights Reserved -All Rights Reserved

Recommend this on Google

5/5mycircuits9.blogspot.com/2012/05/rc-coupled-amplifier_07.html