"Parallel Bridged TDA2030" - diyAudio
Go Back   Home > Forums > Amplifiers > Chip Amps

Chip Amps Amplifiers based on integrated circuits

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 21st July 2011, 02:05 PM   #1
Al1B is offline Al1B  Iran
diyAudio Member
 
Join Date: Mar 2010
Default "Parallel Bridged TDA2030"

ive already made a bridged amplifier with tda2030A
totally for two channels i've used 4 of the chip and within a -18/+18 supply with 4A.

on every channel i could get almost a 28W on 4ohm speakers...

I am wondering, If i can combine 2 bridged boards and make a mono output amp?

is there anyway i can get a clear output sound out of it ?
  Reply With Quote
Old 22nd July 2011, 03:55 AM   #2
eccdbb is offline eccdbb  United States
diyAudio Member
 
Join Date: May 2011
You could get a PSU with more current output for more overhead. 1 chip can eat 3.5A already...
  Reply With Quote
Old 22nd July 2011, 03:59 AM   #3
diyAudio Member
 
abraxalito's Avatar
 
Join Date: Sep 2007
Location: Hangzhou - Marco Polo's 'most beautiful city'. 700yrs is a long time though...
Blog Entries: 101
Send a message via MSN to abraxalito Send a message via Yahoo to abraxalito Send a message via Skype™ to abraxalito
I have a paralleled bridged TDA2030A design on my blog - http://www.diyaudio.com/forums/blogs...s-part-ii.html
__________________
No matter if we meanwhile surrender every value for which we stand, we must strive to cajole the majority into imagining itself on our side - Everett Dean Martin
  Reply With Quote
Old 22nd July 2011, 04:10 AM   #4
eccdbb is offline eccdbb  United States
diyAudio Member
 
Join Date: May 2011
Did you set the gain = 2 for the 3886?
  Reply With Quote
Old 22nd July 2011, 04:24 AM   #5
diyAudio Member
 
abraxalito's Avatar
 
Join Date: Sep 2007
Location: Hangzhou - Marco Polo's 'most beautiful city'. 700yrs is a long time though...
Blog Entries: 101
Send a message via MSN to abraxalito Send a message via Yahoo to abraxalito Send a message via Skype™ to abraxalito
That design uses TDA2030As because they're cheap, not 3886s which cost shed-loads of money relatively speaking. But yes, the gain is set at -2 (inverting) for those ICs.
__________________
No matter if we meanwhile surrender every value for which we stand, we must strive to cajole the majority into imagining itself on our side - Everett Dean Martin
  Reply With Quote
Old 22nd July 2011, 04:33 AM   #6
eccdbb is offline eccdbb  United States
diyAudio Member
 
Join Date: May 2011
Maybe you should do a quick voltage sweep and look for where clipping happens. Also measure the power supply current output at the same time. 28w into 4ohms implies 2.6v, using the 4A supply.

Alternatively, try powering only 1ch and see how loud you can get.
  Reply With Quote
Old 23rd July 2011, 12:54 AM   #7
Al1B is offline Al1B  Iran
diyAudio Member
 
Join Date: Mar 2010
Quote:
Originally Posted by abraxalito View Post
I have a paralleled bridged TDA2030A design on my blog - http://www.diyaudio.com/forums/blogs...s-part-ii.html

thank you abraxalito, your schematic was really helpful..
ill post my pcb after designing.
  Reply With Quote
Old 23rd July 2011, 12:58 AM   #8
Al1B is offline Al1B  Iran
diyAudio Member
 
Join Date: Mar 2010
actually using the TDA2030A in my amp is not because of it's price,
well just look at my location....
u wont believe me if i tell u, that LM3886 is not available in here
and i found it out after designing a lot of pcbs for it..
  Reply With Quote
Old 9th August 2011, 11:24 PM   #9
Al1B is offline Al1B  Iran
diyAudio Member
 
Join Date: Mar 2010
at last, i ordered lm3886 chips and got them
so much power and less components....
i wont ever think of TDA2030 again,
  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
TDA2030 "protection diodes" db! Chip Amps 8 15th April 2011 10:24 AM
Getting confused with LM4780 "parallel" and "bridged" captainobvious Audio Sector 17 5th November 2010 11:30 PM
Breaking all the rules, a "custom" bridged story Redshift187 Chip Amps 19 31st October 2008 01:54 PM
Say Hello To "Sparky" the Parallel Chipamp lgreen Chip Amps 13 25th June 2006 03:58 PM
Tranny: "Parallel" Secondaries dobbeln Parts 3 24th January 2005 02:32 PM


New To Site? Need Help?

All times are GMT. The time now is 04:18 PM.


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