All About Circuits Forum  

Go Back   All About Circuits Forum > Electronics Forums > The Projects Forum


The Projects Forum Working on an electronics project and would like some suggestions, help or critiques? If you would like to comment or assist others with their projects, this is the place to do it.

Reply   Post New Thread
Thread Tools Display Modes
Old 04-18-2010, 11:50 PM
EEngineer88 EEngineer88 is offline
Junior Member
Join Date: Nov 2009
Posts: 12
Default Adjustable High Gain/Wideband Feedback Amplifier

As the title suggests, I need to create one without using op-amps on MultiSim.

Please find attached my circuit and the project requirements and tell me where I'm going wrong.

Thanks in advance
Attached Images
File Type: jpg final1.JPG (32.9 KB, 11 views)
File Type: jpg final2.JPG (182.9 KB, 15 views)
Attached Files
File Type: doc Project 4_1.doc (57.5 KB, 6 views)
Reply With Quote
Old 04-19-2010, 10:59 AM
rjenkins rjenkins is offline
Senior Member
Join Date: Nov 2005
Location: Sheffield, England
Posts: 1,015

The schematic you posted has the bases of the output transistors connected to 5V rather than the collectors of the previous stage?
Robert Jenkins.
Reply With Quote
Old 04-19-2010, 11:17 AM
retched's Avatar
retched retched is offline
Senior Member
Join Date: Dec 2009
Location: Baltimore, MD
Posts: 5,198
Blog Entries: 14

It doenst seem to be amplifying much.. Have you had any success at all? Im guessing not with this circuit. You have them set as switches not amps.
Reply With Quote
Reply   Post New Thread

, , , ,

Related Site Pages
Section Title
Worksheet Inverting and noninverting opamp voltage amplifier circuits
Worksheet Negative feedback opamp circuits
Worksheet Multi-stage transistor amplifiers
Worksheet Design Project: Audio power amplifier
Worksheet Class A BJT amplifiers
Textbook Practical considerations : Operational Amplifiers
Textbook The instrumentation amplifier : Operational Amplifiers
Textbook Building a differential amplifier : Operational Amplifiers
Video Lecture Basic Amplifier Configuration (Part 1) - Op Amps and Op Amp Circuits
Textbook Feedback : Bipolar Junction Transistors

Similar Threads
Thread Thread Starter Forum Replies Last Post
Help regarding audio amplifier.. sarang2502 General Electronics Chat 16 04-27-2010 10:16 PM
Amplifier Design Problem (High gain, high BW) Schniz2 Homework Help 0 04-15-2010 07:41 AM
making inductors coils for 400 watts, high frequency amplifier circuit. whale General Electronics Chat 1 02-04-2010 02:03 PM
high current, low noise and distortion linear amplifier design parmar General Electronics Chat 1 11-11-2009 11:54 PM
project on high power amplifier vsn General Electronics Chat 5 08-03-2009 04:33 PM

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

All times are GMT. The time now is 02:35 AM.

User-posted content, unless source quoted, is licensed under a Creative Commons Public Domain License.
Powered by vBulletin
Copyright ©2000 - 2014, vBulletin Solutions, Inc.