AUDIO AMPLIFIER

A forum for educators who are organizing and/or running a school or local science fair, working with in-class science projects or assignments, and other STEM issues.

Moderators: MelissaB, kgudger

AUDIO AMPLIFIER

Postby Aqeel » Sun Nov 17, 2013 8:30 am

Design an audio amplifier ( class AB output stage) ICs are not allowed.
load resistance is 10 ohm.Max.gain in mid band should be greater or equal to 300.
output swing should be 10 volt peak. input impedance should be 10K ohm.lower frequency should be less than or equal to 10 hertz. higher frequency should be greater or equal to 30KHz.
DC output voltage less than or equal to 100mV. quiescent current less than or equal to 10mA.
Aqeel
 
Posts: 2
Joined: Sun Nov 17, 2013 8:18 am
Occupation: "Student:B.Sc Electrical Engineering"
Project Question: Design an audio amplifier ( class AB output stage) ICs are not allowed.
load resistance is 10 ohm.Max.gain in mid band should be greater or equal to 300.
output swing should be 10 volt peak. input impedance should be 10K ohm.lower frequency should be less than or equal to 10 hertz. higher frequency should be greater or equal to 30KHz.
DC output voltage less than or equal to 100mV. quiescent current less than or equal to 10mA.
Project Due Date: 30th November 2013
Project Status: I am just starting

Re: AUDIO AMPLIFIER

Postby k4gfwgerry » Thu Nov 21, 2013 5:40 pm

Take a look at the following web site: http://www.circuitstoday.com/few-transi ... r-circuits. This circuit uses no ICs. I would suggest varying the component values to meet the parameters that you listed. Good Luck.
Gerry Gruenbaum
Science Buddies "Ask an Expert" Volunteer
k4gfwgerry
Expert
 
Posts: 66
Joined: Wed Jul 06, 2011 12:35 pm
Occupation: Retired Electronics Engineer from Motorola Solutions
Project Question: n/a
Project Due Date: n/a
Project Status: Not applicable

Re: AUDIO AMPLIFIER

Postby Aqeel » Sat Nov 23, 2013 12:06 am

k4gfwgerry wrote:Take a look at the following web site: http://www.circuitstoday.com/few-transi ... r-circuits. This circuit uses no ICs. I would suggest varying the component values to meet the parameters that you listed. Good Luck.

give me an idea to use darlington pair based class ab output stage
Aqeel
 
Posts: 2
Joined: Sun Nov 17, 2013 8:18 am
Occupation: "Student:B.Sc Electrical Engineering"
Project Question: Design an audio amplifier ( class AB output stage) ICs are not allowed.
load resistance is 10 ohm.Max.gain in mid band should be greater or equal to 300.
output swing should be 10 volt peak. input impedance should be 10K ohm.lower frequency should be less than or equal to 10 hertz. higher frequency should be greater or equal to 30KHz.
DC output voltage less than or equal to 100mV. quiescent current less than or equal to 10mA.
Project Due Date: 30th November 2013
Project Status: I am just starting


Return to Science Teachers: Fairs, Projects, and General Support

Who is online

Users browsing this forum: No registered users and 1 guest