Class D Audio Amplifiers - Page 21 - diyAudio
Go Back   Home > Forums > Commercial Sector > Vendor Forums > Inactive Vendor Forums > Connexelectronic

Connexelectronic Commercial Vendors large & small hawking their wares

 
 
Thread Tools Search this Thread
Old 7th April 2013, 12:15 AM   #201
diyAudio Member
 
Join Date: Dec 2010
What would be nice would be a board with two of the chips to provide 4 channels, or 3 channels with one bridged, or two bridged. I might take two of those.

And another vote for speaker protection here.
 
Old 7th April 2013, 12:10 PM   #202
diyAudio Member
 
Join Date: Mar 2009
Default Clarification

I'd like to add to my earlier suggestions about the design of this.

What I meant by "speaker protection" is just something so there's no nasty "snap" when the amp is turned on or off.

Not some complicated thing that will muddy up the sound.

I'm messing with a tiny (half the size of a credit card) amp now, that is really good and is just about as simple as can be. Great sound and no "snaps" either. See this if interested:

http://www.diyaudio.com/forums/class...han-lunch.html

I'm not trying to hijack this discussion. Just using my $6 as an example of simplicity with goodness.

I think it would be great if the proposed amp was built as close as possible to the way Texas Instruments envisioned it, with possibly some extra capacitance as XRK and others are experimenting with on the other thread here at diyAudio.

The power supply should be a separate thing in my opinion. Trains of thought differ so much on this. Wouldn't it be best to just have the audio board easily rigged to the power board or a simple switch mode computer type power supply?
That way if the power supply ever failed, the audio board won't be just tossed away.

Keep it simple. Let's not make this a designed by committee affair -- a "mix" radio station, if you will, that isn't good for anything. Let's ROCK from the beginning, then let the folks who think everything HAS to be modified do as they will.

My feeling is I let the people at say, Texas Instruments, who are way smarter than I prevail and pretty much leave things stock. Unless a DIY wizard can prove the original designers compromised something because they needed to achieve a price point, etc.

Mark
 
Old 7th April 2013, 12:59 PM   #203
blossom is offline blossom  New Zealand
diyAudio Member
 
blossom's Avatar
 
Join Date: Oct 2011
Location: New Zealand.
Quote:
Originally Posted by goosewing View Post
What would be nice would be a board with two of the chips to provide 4 channels, or 3 channels with one bridged, or two bridged. I might take two of those.

And another vote for speaker protection here.
I think this can be achieved with 2 boards no?
 
Old 9th April 2013, 12:37 PM   #204
diyAudio Member
 
Join Date: Dec 2010
Quote:
Originally Posted by blossom View Post
I think this can be achieved with 2 boards no?
It certainly could, but then there are two boards (or in my case four) to build, and if they are to share power supplies the question of whether there will be intercation between them or not.

I think there is a market for mono/stereo amps and a market for multi-channel. This low powered chip does suit mult-channel/active setups well I think - and in my case I would like a single board per (3 way) speaker if I can get it.
 
Old 12th April 2013, 08:40 AM   #205
Cristi is offline Cristi  Europe
diyAudio Member
 
Join Date: Dec 2008
Location: Dortmund+Shenzhen
Guys, I collect all the suggestions and start making a prototype first. if the results are good, a second prototype using two IC's will follow soon.
__________________
www.connexelectronic.com complete assembled amplifier and SMPS
 
Old 12th April 2013, 08:44 PM   #206
diyAudio Member
 
Join Date: Feb 2010
Location: Powell River, BC Canada
Quote:
Originally Posted by Cristi View Post
Guys, I collect all the suggestions and start making a prototype first. if the results are good, a second prototype using two IC's will follow soon.
Thanks very much for moving ahead on this. Will be looking forward to your reports on it.

Cheers,
Rod
 
Old 29th April 2013, 12:30 AM   #207
kp93300 is offline kp93300  Malaysia
diyAudio Member
 
Join Date: Mar 2007
Hi Cristi,
any progress in the TI chips amp ?
regards

kp93300
 
Old 30th April 2013, 12:02 AM   #208
diyAudio Member
 
wushuliu's Avatar
 
Join Date: May 2008
Location: Los Angeles
My only request is that if there are on board speaker connectors that they be large enough to accomodate 16awg or larger wire - or allow them to be replaced with larger connectors from Digikey, Mouser, etc. etc.
 
Old 1st May 2013, 06:32 AM   #209
oneday is offline oneday  Australia
diyAudio Member
 
Join Date: Apr 2007
I'm in for investigating a TI TPA3116-based amp, terrific to see one in the making. Options? Speaker connection bypassing the output filter might be useful for some, and I like the battery power option too.
 
Old 16th May 2013, 01:23 AM   #210
Cristi is offline Cristi  Europe
diyAudio Member
 
Join Date: Dec 2008
Location: Dortmund+Shenzhen
working at, and as soon as i have the prototype ready will post results and pictures here: Forum Connexelectronic • Index page
__________________
www.connexelectronic.com complete assembled amplifier and SMPS
 

 


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
non surface mount class D mono audio power amplifiers Conor Digital Source 10 4th October 2013 07:38 PM
Single-Ended Class-A Audio Amplifiers shaan Everything Else 32 4th September 2009 02:42 AM
pro amplifiers vs. home audio amplifiers bonsai171 Solid State 26 25th February 2004 08:24 PM
Class A vs. IC amplifiers for PC audio Beggar Solid State 15 26th July 2002 11:58 AM


New To Site? Need Help?

All times are GMT. The time now is 10:24 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