Solid State Guitar Amp Forum | DIY Guitar Amplifiers

Please login or register.

Login with username, password and session length
Advanced search  

News:

collapse
Pages: [1]   Go Down

Author Topic: differential pair amplifier question  (Read 119 times)

NPreston

  • SSGuitar Apprentice
  • **
  • Chip Points: 2
  • Posts: 5
    • View Profile
differential pair amplifier question
« on: April 14, 2017, 03:59:00 AM »

I am kind of new to amp building and have a decent understanding of amplifying with op apms and single transistors, however I am having trouble really grasping how the differential pair commonly seen in the power section works...  I've tried reading up here and there on the net about it, but I cant say I really know how to make use of this circuit.. I kinda get it, however I dont really understand how to properly set the feedback or how to design for a specific gain etc, set dc at input, single supply vs +/- supply ect..   IN any case, was wondering if anybody knew of any good easy to follow tutorials with examples anywhere??   Something you might see in a text book with various examples??
Thanks

N.
Logged

phatt

  • Legendary
  • ******
  • Chip Points: 191
  • Posts: 1673
    • View Profile
Re: differential pair amplifier question
« Reply #1 on: April 14, 2017, 12:03:04 PM »

Are you aware of Teemu's book? It will help explain it.

https://www.ssguitar.com/index.php?topic=711.0

Also Google Art of Electronics by Horowitz and Hill. I think there maybe a PDF of that book floating around.
It's one of the better books and covers the subject quite well. If you have a basic understanding of analog electronics then A of E will be easy to grasp. ;) 
Heck I failed at maths and even I understood a fair bit straight up.  :tu:
Phil.
Logged

J M Fahey

  • SSGuitar Global Mod
  • Legendary
  • ****
  • Chip Points: 413
  • Posts: 4034
    • View Profile
Re: differential pair amplifier question
« Reply #2 on: April 16, 2017, 01:12:33 AM »

Agree and add: study how Operational Amplifiers work, since they are a MAJOR building block thereīs tons of books and articles explaining them; which also explain NFB since thatīs the tool to make them do what you want.
And of course the differential amplifier is explained, since it constitutes the input stage of an Op Amp.

Once you understand this, modern SS Power Amps are simple: they *are* an Op Amp !!!!!! ... just a beefy kind, able to drive speakers with high power.,
Logged

NPreston

  • SSGuitar Apprentice
  • **
  • Chip Points: 2
  • Posts: 5
    • View Profile
Re: differential pair amplifier question
« Reply #3 on: April 17, 2017, 12:18:44 AM »

Thanks for the pointers..  I'll definitely take a look into Op amp insides too when i start catchin on!
 :tu:

Logged
Pages: [1]   Go Up
 

* User Info
 
 
Welcome, Guest. Please login or register.
Did you miss your activation email?
* Recent Posts
Jordan Professional 440 Solid State IC Amp Head by teemuk
[April 27, 2017, 07:58:53 AM]


Strange amp in a suitcase by J M Fahey
[April 27, 2017, 05:42:47 AM]


DIY Layout Creator by DrGonz78
[April 26, 2017, 08:40:13 AM]


Marshall Lead 100 MOSFET 3210 Head by J M Fahey
[April 26, 2017, 12:59:30 AM]


More differential amplifier questions by phatt
[April 24, 2017, 09:05:25 AM]

* Sponsors