Class D Amp with LM566,LM393 and 2XIRF530 - Page 22 - 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 25th December 2012, 04:43 AM   #211
diyAudio Member
 
Join Date: Jun 2010
merry Christmas. All affection and best wishes to you and yours.
  Reply With Quote
Old 29th December 2012, 10:07 AM   #212
IRSound is offline IRSound  Germany
diyAudio Member
 
Join Date: Feb 2012
Hi Mile ,

Can I use BD243C instead of BD241C ?
and, using zener diodes for voltages like +/-5v and 12v isn't making problem ? because their voltages aren't stable...
for example , Mackie use regulated voltages (with ICs)..

my ps transformer have voltages about 57-0-57 @ no load..so after rectifire it should be about +/-80v @ no load , does it have any problem if i connect it to amp ?

Regards,
IRSound
  Reply With Quote
Old 31st December 2012, 10:49 AM   #213
IRSound is offline IRSound  Germany
diyAudio Member
 
Join Date: Feb 2012
Mile ,

please give me an answer...

Regards,
IRSound
  Reply With Quote
Old 31st December 2012, 11:59 AM   #214
diyAudio Member
 
apexaudio's Avatar
 
Join Date: Feb 2010
Location: Serbia
Quote:
Originally Posted by IRSound View Post
Hi Mile ,

Can I use BD243C instead of BD241C ?
and, using zener diodes for voltages like +/-5v and 12v isn't making problem ? because their voltages aren't stable...
for example , Mackie use regulated voltages (with ICs)..

my ps transformer have voltages about 57-0-57 @ no load..so after rectifire it should be about +/-80v @ no load , does it have any problem if i connect it to amp ?

Regards,
IRSound
BD243C or TIP31C.... and many other TO220 NPN transistors can be use instead BD241C, you can also use N mosfet like IRF540 with 15V zener instead 12V. This amplifier is for fan and make some expirience with class D amps, it's better use extra +/-5V and 12V PSU, but will work anyway.
Regards
  Reply With Quote
Old 31st December 2012, 01:18 PM   #215
IRSound is offline IRSound  Germany
diyAudio Member
 
Join Date: Feb 2012
Thanks,


Quote:
This amplifier is for fan and make some expirience with class D amps, it's better use extra +/-5V and 12V PSU, but will work anyway.
Regards
so what's the difference then ?

how about this question :
my ps transformer have voltages about 57-0-57 @ no load..so after rectifire it should be about +/-80v @ no load , does it have any problem if i connect it to amp ?

Regards,
IRSound

Last edited by IRSound; 31st December 2012 at 01:26 PM.
  Reply With Quote
Old 2nd January 2013, 08:13 AM   #216
manojtm is offline manojtm  India
diyAudio Member
 
manojtm's Avatar
 
Join Date: Aug 2008
Quote:
how about this question :
my ps transformer have voltages about 57-0-57 @ no load..so after rectifire it should be about +/-80v @ no load , does it have any problem if i connect it to amp ?
Hi IR,

with full load it will down to 75V(diode voltage drop); no problem with 200v mosfet max.90V supply

Regards
MANOJ
  Reply With Quote
Old 2nd January 2013, 03:25 PM   #217
diyAudio Member
 
aman khalsa's Avatar
 
Join Date: Oct 2010
Location: punjab
m also want to make this one vry nice amp... thnk u sir
  Reply With Quote
Old 2nd January 2013, 11:48 PM   #218
diyAudio Member
 
apexaudio's Avatar
 
Join Date: Feb 2010
Location: Serbia
D200 work perfect with inductor from BEHRINGER class D amp, core with 1mm gap and 15 turns.
Attached Images
File Type: jpg D200.jpg (45.0 KB, 844 views)
File Type: jpg D200 pcb.jpg (45.2 KB, 825 views)
  Reply With Quote
Old 3rd January 2013, 10:26 AM   #219
IRSound is offline IRSound  Germany
diyAudio Member
 
Join Date: Feb 2012
Mile ,

it's yours ?
Could you please tell me about output power with +/-40v supply ?(8~2 Ohm Loads)

Regards
  Reply With Quote
Old 3rd January 2013, 11:24 AM   #220
diyAudio Member
 
apexaudio's Avatar
 
Join Date: Feb 2010
Location: Serbia
Quote:
Originally Posted by IRSound View Post
Mile ,

it's yours ?
Could you please tell me about output power with +/-40v supply ?(8~2 Ohm Loads)

Regards
With +/-40V power is 80W/8 Ohm load without heatsinks on IRF640 (about 300W/2 Ohm load)
Regards
  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
Configuring an AB class amp to work in pure A class jrme Tubes / Valves 5 23rd February 2010 07:31 PM
Can a Class AB PP amp be said to be operating in Class A at low signal levels? ray_moth Tubes / Valves 19 23rd January 2009 08:52 PM
why p-p amp RL for class B is 1/2 the class A load? walter33333 Tubes / Valves 2 12th February 2008 05:56 PM
Class D amp? Digital amp? or traditional Class A? rockytro Solid State 21 23rd May 2006 01:40 AM


New To Site? Need Help?

All times are GMT. The time now is 10:28 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