Tda 2050+bd249/bd250c - diyAudio
Go Back   Home > Forums > Amplifiers > Solid State

Solid State Talk all about solid state amplification.

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 1st February 2010, 03:59 PM   #1
Alek is offline Alek  Macedonia
diyAudio Member
 
Join Date: Feb 2010
Default Tda 2050+bd249/bd250c

Hi! I've got this schematic with TDA2030+BD243A/BD244A which is suppose to deliver 40W rms at 4Ohm load with +-22V. So I have these spare parts in my junkbox: chip TDA2050 and BD249C, BD250C. Can I just use those instead TDA2030+BD243A/BD244A or should I change some capacitor/resistor values. Also, how much of volt supply would that circuit need and ofcourse how much Watts it could deliver, what do you guys think? Since the pic below is of low quality here's the parts list regarding from left to right on the schematic:

C1=2,2mF(16V); R1=47kohm; R2=1k8; D1,D2=1N4148; R3=47kohm; C2=47mF(16V); R4=1k8; R5,R6=2,2 ohms; C4, C5 and C6=100nF; C7,C8=22mF(40V), R7=1ohm;C3=220nF, and protection diodes are 1N4001.
Attached Images
File Type: jpg ampsch.jpg (42.6 KB, 245 views)
  Reply With Quote
Old 1st February 2010, 06:30 PM   #2
diyAudio Member
 
east electronics's Avatar
 
Join Date: Jan 2006
Location: Athens GREECE
well that is an inderesting issue ....

i wanted to play with a thing like that long ago from very long memory i can tell you a few things

tda 2030 + Bd249+250 is a lofi application BUT !!! its is an amlifier that is extremelly stable plays reliably has amazing drive abilty for a cr**py circuit ...weird loads is absolutely no prob to drive but quality is low ....

a memory also says that 2050 doesnt work like that but i am not sure
a memory also says that i dont recall seeing something like that with symetrical rails ( that should be a performer !!!!! )
a memory also says that some testing ive done in the past is that this type oF chips either stand alone or with external transitors eventhough may produce very high peaks of power the internal protection will not allow abuse ... AND HIGH POWERS ALSO ....

eventhough that topology technology and part ology is from the far away past a topic like that would be very interesting given the simplicity of the circuit ...

even now days there is room for a cheap lofi application ....
__________________
SERVICE ΕΝΙΣΧΥΤΩΝ ΚΑΙ ΙΑΠΩΝΙΚΩΝ ΜΗΧΑΝΗΜΑΤΩΝ ΗΧΟΥ www.eastelectronics.gr
  Reply With Quote
Old 1st February 2010, 07:04 PM   #3
Alek is offline Alek  Macedonia
diyAudio Member
 
Join Date: Feb 2010
Thanks for the reply Sakis. As for the LoFi applications; well, first of all- it doesent have to be hifi anyway, coz I'm planing that circuit for an upgrade to my diy practice guitar amplifier that I've built some years ago, and that amplifier includes the TDA2030 in its circuit, so I'm hesitating between just swapping the TDA2030 fir 2050 or including the BD240/250 somehow and giving it a bit more output, just for the fun's sake
  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
Nr 50 TDA 2050 fosforo Vendor's Bazaar 1 19th June 2008 08:36 AM
tda 2050 gainclone / balanced input? Mad_K Chip Amps 51 10th September 2007 06:40 PM
tda 2050 power supply/pcb scaesic Pass Labs 14 6th July 2007 03:38 PM
tda 2050 - heatsinking and schem scaesic Chip Amps 1 20th June 2007 02:04 AM
spice model for BD249/250????? bogdan_borko Solid State 2 23rd December 2005 01:33 PM


New To Site? Need Help?

All times are GMT. The time now is 03:03 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