Negative feedback? - Page 4 - diyAudio
Go Back   Home > Forums > Amplifiers > Solid State

Solid State Talk all about solid state amplification.

Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 14th March 2003, 03:58 AM   #31
diyAudio Member
 
Join Date: Feb 2003
Wouldn't putting a resistor in series with the speaker produce a current feedback effect? Would this cause uneven output near a speaker's resonance?
  Reply With Quote
Old 14th March 2003, 04:10 AM   #32
diyAudio Member
 
Tube_Dude's Avatar
 
Join Date: Mar 2002
Location: Aveiro-Portugal
Default Feedback of current...

Quote:
Wouldn't putting a resistor in series with the speaker produce a current feedback effect
If you put a resistor betwen the - of the loudspeaker and ground...say 1 Ohm and take the feedback from the union of this resistor and the minus of the loudspeaker...

Yes you have a current amplifier...aka a current source!
Quote:
Would this cause uneven output near a speaker's resonance?
Yes ...because there be no damping at all...

regards
__________________
Jorge
  Reply With Quote
Old 14th March 2003, 05:35 AM   #33
diyAudio Member
 
Join Date: Feb 2003
What if instead of a small value resistor between speaker - and ground, I feed back the speaker + through a high value resistor? That would be voltage feedback right?
  Reply With Quote
Old 14th March 2003, 02:29 PM   #34
diyAudio Member
 
Tube_Dude's Avatar
 
Join Date: Mar 2002
Location: Aveiro-Portugal
Default Voltage or current...

Quote:
What if instead of a small value resistor between speaker - and ground, I feed back the speaker + through a high value resistor? That would be voltage feedback right?
Right!
__________________
Jorge
  Reply With Quote

Reply


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Negative Feedback? Binaural Tubes / Valves 15 12th March 2009 08:05 PM
Negative Feedback AmpBuilder225 Tubes / Valves 7 20th February 2009 09:05 PM
Less Negative Feedback Is Better? CarlosT Chip Amps 25 14th December 2006 11:18 PM
Negative Feedback Jack Thomas Tubes / Valves 6 5th May 2003 01:38 AM


New To Site? Need Help?

All times are GMT. The time now is 11:56 PM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright 1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2