New TK2050 board - Page 55 - 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 27th July 2010, 07:07 PM   #541
kc7wdg is offline kc7wdg  United States
diyAudio Member
 
Join Date: Jun 2010
And 1.1b is DC only
  Reply With Quote
Old 28th July 2010, 08:47 AM   #542
nige838 is offline nige838  United States
diyAudio Member
 
Join Date: Dec 2009
Quote:
Originally Posted by Nick122147 View Post
There was some info about this some pages ago: link
I have the same size batteries. I would guess you could play 15-20 hours, but I think I have been charging more often. Only thing bothers me is that my charger is making a loud bzz sound..
Have ordered two 6.8Ah lithium-ion batteries which should arrive any day, curious to see how those works.


I understand that seems strange. It's because the standalone RCA are not the same as the ones soldered to the cable.
Hello Nick,
I don't mean to pry, but where on earth did you find those Li-Ion batteries? I have been searching for months without success.

Thank you for your time,
Nicholas G.
  Reply With Quote
Old 29th July 2010, 01:13 AM   #543
sendler is offline sendler  United States
diyAudio Member
 
Join Date: Aug 2004
Location: ny
Default 4db

Even if you go to 1k over 23k for the feedback resistors and 48v max, the gain is still under 28db which will be fine. I first thought that it would be a lot higher than that but it is only 4db louder than the 30v amps.
.
Quote:
Originally Posted by sendler View Post
I just realized something about using the 517b chips, in our quest for 50v and it's increased power, what do we do with the gain settings of the feedback loop? If we use a 15v/v setting that we have been using at 30v, will we clip the feedback input of the TC2000 causing distortion and reliability issues?
__________________
Scott
  Reply With Quote
Old 29th July 2010, 09:51 AM   #544
SOSx is offline SOSx  United Kingdom
diyAudio Member
 
Join Date: Jun 2010
Location: UK
Hi Nick /or anybody else,

What specific molex connector is the signal input?
As I would like to make some good quality connectors.

Kindest regards
  Reply With Quote
Old 29th July 2010, 12:56 PM   #545
diyAudio Member
 
Join Date: Apr 2008
Quote:
Originally Posted by Nick122147 View Post
Have ordered two 6.8Ah lithium-ion batteries which should arrive any day, curious to see how those works.

Hi Nick, anything news about your Li-on (Ti-ger) batteries ?
Where did you purchase them ? Link here/PM ...?
  Reply With Quote
Old 29th July 2010, 01:34 PM   #546
diyAudio Member
 
Join Date: Oct 2009
Quote:
Originally Posted by sendler View Post
Even if you go to 1k over 23k for the feedback resistors and 48v max, the gain is still under 28db which will be fine. I first thought that it would be a lot higher than that but it is only 4db louder than the 30v amps.
.
Right. 4db louder means 200Watt more.
  Reply With Quote
Old 29th July 2010, 01:43 PM   #547
diyAudio Member
 
Join Date: Oct 2009
Quote:
Originally Posted by SOSx View Post
Hi Nick /or anybody else,

What specific molex connector is the signal input?
As I would like to make some good quality connectors.

Kindest regards
We use 2.54mm pitch connector for signal input. Nick has some wire made by factory for sale. And you can find this in the box.
Attached Images
File Type: jpg input con.JPG (27.9 KB, 582 views)
  Reply With Quote
Old 29th July 2010, 02:56 PM   #548
SOSx is offline SOSx  United Kingdom
diyAudio Member
 
Join Date: Jun 2010
Location: UK
Hi Hifimediy,

I did not appear to have these in the box?
I had little pre made molex to bare wire cables.
I do not want sockets of the end as I am going strait into the output of a processing unit.
  Reply With Quote
Old 30th July 2010, 02:51 AM   #549
diyAudio Member
 
Join Date: Oct 2009
Quote:
Originally Posted by SOSx View Post
Hi Hifimediy,

I did not appear to have these in the box?
I had little pre made molex to bare wire cables.
I do not want sockets of the end as I am going strait into the output of a processing unit.
Soldering the signal wire directly to the pads of socket on board, will be better for signal.
  Reply With Quote
Old 30th July 2010, 08:47 PM   #550
nige838 is offline nige838  United States
diyAudio Member
 
Join Date: Dec 2009
I've found a 24 volt, 13 amp SMPS. I know that it's got enough current, but I was wondering if it has TOO MUCH CURRENT? It says that over-current protection is 12 amp. I guess what I'm really trying to ask is what is over-current protection?

Thanks for the help,
Nicholas G.
  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
Sure electronics 4*100 watt @ 4ohm, TK2050 D-class Audio Amplifier Board aquapiranha Class D 3 30th May 2011 11:06 PM
Any input on the new Dayton TK2050? finnbow Class D 10 2nd May 2011 11:37 PM
Parallled tk2050/st505 paolo66 Class D 1 24th November 2009 05:10 PM
New Sure electronics TK2050 T-amp xaudiox Class D 2 8th May 2009 07:50 AM
Tripath TK2050 Eccu Digital Source 0 19th April 2002 11:06 AM


New To Site? Need Help?

All times are GMT. The time now is 06:33 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