DIY Good Class D amplifier - Page 17 - diyAudio
Go Back   Home > Forums > Amplifiers > Class D

Class D Switching Power Amplifiers and Power D/A conversion

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 29th November 2013, 07:27 PM   #161
Acca is offline Acca  Serbia
diyAudio Member
 
Acca's Avatar
 
Join Date: Nov 2011
Send a message via Skype™ to Acca
I'm drawing feedback version now
  Reply With Quote
Old 29th November 2013, 07:43 PM   #162
PetruV is offline PetruV  Romania
diyAudio Member
 
Join Date: Dec 2012
Location: Bucuresti
That would be of great use,especially with discrete gate drive
__________________
I know everything but do nothing
  Reply With Quote
Old 29th November 2013, 07:49 PM   #163
Acca is offline Acca  Serbia
diyAudio Member
 
Acca's Avatar
 
Join Date: Nov 2011
Send a message via Skype™ to Acca
You give me idea-to use GDT
  Reply With Quote
Old 29th November 2013, 08:22 PM   #164
PetruV is offline PetruV  Romania
diyAudio Member
 
Join Date: Dec 2012
Location: Bucuresti
I experimented with this but i didnt work good with gdt from computer smps,custom wound ones will surely work,as sg3525 can drive them directly,in my mind,it should work
I want to use this smps by TDA for this forum,uni4s
Uni SMPS 3 - Page 5 - Smps - DiyAudioProject
Is it usable??
__________________
I know everything but do nothing
  Reply With Quote
Old 29th November 2013, 08:48 PM   #165
Acca is offline Acca  Serbia
diyAudio Member
 
Acca's Avatar
 
Join Date: Nov 2011
Send a message via Skype™ to Acca
SG cant drive GDT,because it have pwm od another type than ouput pwm.See schematic.Simulate if don't know.I tried GDT yelow toroid from PC and it's good when add totem pole after two diodes and 470R.Yes,SMPS is usable,TDA only revised my PCB.SMPS is my
  Reply With Quote
Old 29th November 2013, 08:51 PM   #166
PetruV is offline PetruV  Romania
diyAudio Member
 
Join Date: Dec 2012
Location: Bucuresti
Oh,i get it,i will try smps
__________________
I know everything but do nothing
  Reply With Quote
Old 29th November 2013, 08:53 PM   #167
Acca is offline Acca  Serbia
diyAudio Member
 
Acca's Avatar
 
Join Date: Nov 2011
Send a message via Skype™ to Acca
I don't have any test equipment here so it's only idea,not tested.You should test it.When I buy scope,I will try with GDT,I like this.Darlington is used because of base-emmiter voltage and classic BJT with diode shouldn't work.
Any sugestions will be good.
There's schematic:
Attached Images
File Type: jpg untitled.JPG (86.9 KB, 362 views)

Last edited by Acca; 29th November 2013 at 08:55 PM.
  Reply With Quote
Old 29th November 2013, 08:57 PM   #168
Acca is offline Acca  Serbia
diyAudio Member
 
Acca's Avatar
 
Join Date: Nov 2011
Send a message via Skype™ to Acca
Quote:
Originally Posted by PetruV View Post
Oh,i get it,i will try smps
Don't forget to place storage inductor after secondary diodes.
  Reply With Quote
Old 29th November 2013, 09:21 PM   #169
PetruV is offline PetruV  Romania
diyAudio Member
 
Join Date: Dec 2012
Location: Bucuresti
The smps has unusual grounding,does it mean that if i plug it into a socket without ground it dosent work?
__________________
I know everything but do nothing
  Reply With Quote
Old 29th November 2013, 09:35 PM   #170
Acca is offline Acca  Serbia
diyAudio Member
 
Acca's Avatar
 
Join Date: Nov 2011
Send a message via Skype™ to Acca
No,it will work without it.But if bad transformer winding,you will be unsafe.
Member naf was tried it.You can ask him how it works
  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
A good 12v power supply to run small class D amplifier indoors? chipper Power Supplies 2 16th June 2014 03:57 PM
DIY Class-A audio amplifier APLY123 Solid State 0 13th July 2007 11:36 PM
A good Brazilian Amplifier, class A switching to AB in hi power destroyer X Solid State 65 24th March 2005 08:12 PM
Really good DIY Amplifier Info here! Zero Cool Solid State 2 15th October 2004 12:45 AM
Class A diy power amplifier jmar Solid State 1 18th January 2004 06:10 PM


New To Site? Need Help?

All times are GMT. The time now is 05:17 AM.


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