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

Class D Amp Photo Gallery
Class D Amp Photo Gallery
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 19th February 2019, 02:09 AM   #1371
jencelo is offline jencelo  United States
diyAudio Member
 
Join Date: May 2009
Quote:
Originally Posted by denbret View Post
Hello Everyone,

I built this amplifier Sure IRS 2092, model 2 * 250w. I used a Sure PSU too. This amp power woofers SB29 6ohms in FAST mode. The TB W5-2140 fullranges are powered with the 3rd-audio TPA3251. preamp DCB1 and PI3 + dac AK4490. I am very satisfied with the overall sound. I still have to add HP protection.

Click the image to open in full size.

Click the image to open in full size.

Click the image to open in full size.
This is my dream project that I donít know how to do
  Reply With Quote
Old 26th February 2019, 05:47 PM   #1372
doctormord is offline doctormord  Germany
diyAudio Member
 
doctormord's Avatar
 
Join Date: Oct 2007
So, in the end they found together, TPA3255 2.1 100x100mm system in direct contact with the 1200W 4-phase LTC3784 boost-converter board, making it possible to go the distance with even only having 10V at the input to put out 600Wrms. As this asks for 1200W power into the amp and an realistic efficiency of 92% from the boost converter, this setup is asking for 130A at the 10V input. (Things get much easier when using a 36V supply) For the AFE module and bulk caps there is a mounting holder within half of the height to make good support for stability while driving with the bike. The whole thing measures 110x110x70mm, i'd call this a power-brick.

TPA3255 - all about DIY, Discussion, Design etc.-img_20190226_134652-jpg

TPA3255 - all about DIY, Discussion, Design etc.-img_20190226_134754-jpg

TPA3255 - all about DIY, Discussion, Design etc.-img_20190226_134907-jpg

TPA3255 - all about DIY, Discussion, Design etc.-img_20190226_134943-jpg

Bike? The bike with the actual setup, TPA3255 + 3x12V SLA system...

Youtube: YouTube
  Reply With Quote
Old 8th March 2019, 04:12 PM   #1373
Khron is offline Khron  Finland
diyAudio Member
 
Join Date: Jul 2005
Location: Finland
Send a message via AIM to Khron Send a message via MSN to Khron Send a message via Yahoo to Khron
A little guitar amp project that's been bouncing around in the back of my mind for years, but finally got around to doing something about it (starting) a couple months ago.

"Even" managed to shoehorn in 120W HP laptop power bricks (OEM'd by LiteOn) in there

The cases for the prototypes are Takachi MB-12 (now discontinued, afaik), but if there's local demand, i've set my eye on some Hammond 1411TT's.

The little TPA3118 "daughterboards" have been de-gained down to 20dB (there's a good 4Vpp coming out of the preamps), are "SMD"-mounted to the mainboard.
Also, they have a glob of thermal paste in-between, and i left a soldermask-less area on the main board, to improve the thermal transfer.

CD for scale
Attached Images
File Type: jpg IMG_9922.jpg (603.7 KB, 102 views)
File Type: jpg IMG_0052.jpg (403.7 KB, 111 views)
File Type: jpg IMG_0053.JPG (967.5 KB, 91 views)
__________________
Khron's Cave - Electronics - Audio - Teardowns - Mods - Repairs - Projects - Music - Rants - Shenanigans

Last edited by Khron; 8th March 2019 at 04:15 PM.
  Reply With Quote
Old 8th March 2019, 11:07 PM   #1374
doctormord is offline doctormord  Germany
diyAudio Member
 
doctormord's Avatar
 
Join Date: Oct 2007
Nice build mate!
  Reply With Quote
Old 8th March 2019, 11:31 PM   #1375
Khron is offline Khron  Finland
diyAudio Member
 
Join Date: Jul 2005
Location: Finland
Send a message via AIM to Khron Send a message via MSN to Khron Send a message via Yahoo to Khron
You're too kind

Well, there's only SO much i can do with a cordless drill and some cheapo eBay step-drills AND while being a cheapskate / on a budget...

They ARE "only" prototypes, after all The first one (not shown) already went to my band's guitarist, and he's likin' it

Quote:
Originally Posted by doctormord View Post
Nice build mate!
__________________
Khron's Cave - Electronics - Audio - Teardowns - Mods - Repairs - Projects - Music - Rants - Shenanigans
  Reply With Quote
Old 13th March 2019, 03:13 PM   #1376
gauravsanu is offline gauravsanu
diyAudio Member
 
gauravsanu's Avatar
 
Join Date: Sep 2016
Question Want best quality sound 🔊 board

Please anyone suggest me the very good sound quality class D or class T amplifier board for play TV 📺 sound.
I am making my small amplifier for 🏡 home. 15x2W to 75x2w will be enough for me.
Also suggestt me the good plan for making the same kit.

Thanks in advance.
  Reply With Quote
Old 13th March 2019, 04:29 PM   #1377
Khron is offline Khron  Finland
diyAudio Member
 
Join Date: Jul 2005
Location: Finland
Send a message via AIM to Khron Send a message via MSN to Khron Send a message via Yahoo to Khron
Maybe i'm biased, but i'm really liking these small Sanwu-clone TPA3118 PBTL boards They can be found for as low as under $2 on AliExpress

Is there anything half-decent out there that gets you more power per dollar out there? I'd be quite surprised...

Throw in a half-reasonable 65-90w laptop charger (used - that way you can get a quality one, OEM'd by Delta, LiteOn or maybe Hipro or FSP - the "big boys" in the field) and you can start annoying your neighbours for under $10-15

Quote:
Originally Posted by gauravsanu View Post
Please anyone suggest me the very good sound quality class D or class T amplifier board for play TV 📺 sound.
I am making my small amplifier for 🏡 home. 15x2W to 75x2w will be enough for me.
Also suggestt me the good plan for making the same kit.

Thanks in advance.
__________________
Khron's Cave - Electronics - Audio - Teardowns - Mods - Repairs - Projects - Music - Rants - Shenanigans
  Reply With Quote
Old 14th March 2019, 05:19 AM   #1378
gauravsanu is offline gauravsanu
diyAudio Member
 
gauravsanu's Avatar
 
Join Date: Sep 2016
@Khron's Cave
Thanks for your valuable suggestions. Planning to buy one of them as soon as possible.
  Reply With Quote
Old 14th March 2019, 05:20 AM   #1379
gauravsanu is offline gauravsanu
diyAudio Member
 
gauravsanu's Avatar
 
Join Date: Sep 2016
Default Thanks

Quote:
Originally Posted by Khron View Post
Maybe i'm biased, but i'm really liking these small Sanwu-clone TPA3118 PBTL boards They can be found for as low as under $2 on AliExpress

Is there anything half-decent out there that gets you more power per dollar out there? I'd be quite surprised...

Throw in a half-reasonable 65-90w laptop charger (used - that way you can get a quality one, OEM'd by Delta, LiteOn or maybe Hipro or FSP - the "big boys" in the field) and you can start annoying your neighbours for under $10-15
@Khron's Cave
Thanks for your valuable suggestions. Planning to buy one of them as soon as possible.
  Reply With Quote
Old 16th March 2019, 06:07 PM   #1380
Antennaguru is offline Antennaguru  United States
diyAudio Member
 
Antennaguru's Avatar
 
Join Date: Oct 2016
Location: Rural New England
Click the image to open in full size.BO 125 acrylic lid by antennaguru uda, on Flickr

This is a Hybrid Class D Ampifier consiting of an Icepower 125ASX2 module (125 wpc Stereo module) with a Class A vacuum tube input driver stage.
  Reply With Quote

Reply


Class D Amp Photo GalleryHide 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


New To Site? Need Help?

All times are GMT. The time now is 02:19 AM.


Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 15.00%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.
Copyright ©1999-2019 diyAudio
Wiki