Go Back   Home > Forums > >
Home Forums Rules Articles diyAudio Store Blogs Gallery Wiki Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Class D Switching Power Amplifiers and Power D/A conversion

TI TPA3255EVM
TI TPA3255EVM
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 6th October 2017, 05:35 PM   #11
2wice is offline 2wice  South Africa
diyAudio Member
 
Join Date: Feb 2013
Location: Pretoria
Awesome! Thanks very much
  Reply With Quote
Old 6th October 2017, 05:36 PM   #12
Kay Pirinha is offline Kay Pirinha  Germany
diyAudio Member
 
Kay Pirinha's Avatar
 
Join Date: Oct 2011
Location: Somewhere in Germany
Quote:
Originally Posted by doctormord View Post
So you hear the difference between 280 and 315W?
I'd use this board(s) not for home hifi, but for PA service instead, where probably every watt counts, especially in combination with today's compact, but low efficient speaker designs.

Best regards!
__________________
"Bless you, Sister. May all your sons be bishops." (Brendan Behan)
  Reply With Quote
Old 6th October 2017, 06:07 PM   #13
doctormord is offline doctormord  Germany
diyAudio Member
 
doctormord's Avatar
 
Join Date: Oct 2007
Okay then.

If 315W = 0dB then 157W = -3dB (barely noticeable), 235W = -1.5dB

Hard to believe that you'll hear a difference between 280/315W.
  Reply With Quote
Old 6th October 2017, 06:19 PM   #14
matt_garman is offline matt_garman  United States
diyAudio Member
 
Join Date: Feb 2008
Location: Chicago, Illinois, USA
TI TPA3255EVM
Quote:
Originally Posted by doctormord View Post
Hard to believe that you'll hear a difference between 280/315W.
WHAT?!!! I can't hear you, the music's too loud!

  Reply With Quote
Old 6th October 2017, 07:03 PM   #15
datrumole is offline datrumole  United States
diyAudio Member
 
Join Date: Aug 2013
Anyone have a recommended power supply for these modules. Thinking of a potential multichannel for HT, 8ohm speakers
  Reply With Quote
Old 6th October 2017, 07:08 PM   #16
DPH is offline DPH  United States
diyAudio Member
 
Join Date: Dec 2008
Location: Portland, OR
Look up earlier in the thread, but long and short, look on the major electronics suppliers (digikey, mouser) for beefy 48v single supplies.
__________________
Happy DIYing, Daniel
  Reply With Quote
Old 6th October 2017, 07:14 PM   #17
datrumole is offline datrumole  United States
diyAudio Member
 
Join Date: Aug 2013
Sorry, follow up, same process for the 12v input as well? Or would you use a step down from 48 to 12 off the main supply
  Reply With Quote
Old 6th October 2017, 07:45 PM   #18
DPH is offline DPH  United States
diyAudio Member
 
Join Date: Dec 2008
Location: Portland, OR
By whatever process gets you there, that's a low-power rail.
__________________
Happy DIYing, Daniel
  Reply With Quote
Old 6th October 2017, 08:20 PM   #19
jackinnj is offline jackinnj  United States
diyAudio Member
 
jackinnj's Avatar
 
Join Date: Apr 2002
Location: Llanddewi Brefi, NJ
TI TPA3255EVM
This was a "buy one get three more free" deal over 10 years ago -- 48V Sorensen supplies which have been sitting on a shelf. They would seem to be OK for this project Evaluation Module project. I think I almost tried to give them away at one time -- no takers:
Attached Images
File Type: jpg Sorensen_A.jpg (146.1 KB, 523 views)
File Type: jpg Sorensen_B.jpg (163.8 KB, 523 views)
  Reply With Quote
Old 6th October 2017, 08:47 PM   #20
Variac is offline Variac  Costa Rica
diyAudio Editor
 
Variac's Avatar
 
Join Date: Dec 2001
Location: San Francisco, USA San Josť, Costa Rica
TI TPA3255EVM
how about this supply?
RSP-1000-48: MEAN WELL : AC to DC Power Supply Single Output 48 Volt 21 Amp 1.008kw : Power Supplies & Wall Adapters
__________________
"The geek shall inherit the earth"
2017 Burning Amp is November 12 in S.F. Thread here on diyAudio:
http://www.diyaudio.com/forums/clubs...francisco.html
  Reply With Quote

Reply


TI TPA3255EVMHide 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

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
TPA3255EVM to complete amp (advise needed) VerticalEaz Class D 67 15th January 2018 03:05 AM
tpa3255evm spacesaver mod robinlawrie Class D 84 12th December 2017 07:20 AM


New To Site? Need Help?

All times are GMT. The time now is 01:09 AM.


Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 15.00%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Copyright ©1999-2018 diyAudio
Wiki