900W H-class PA Amp with Limiter - Page 61 - 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 16th June 2010, 09:44 AM   #601
diyAudio Member
 
Tube Pro's Avatar
 
Join Date: Nov 2009
Location: Macao
Thanks Mile,
So a single MUR860G will just be enough for the h900 circuit, right?
by the way,
Just added you in my facebook acct.
Will post some Apexaudio photos once I finish building some of your featured projects.
Keep up the good work dude...
:-) Regards,
>Joel
Philippines
  Reply With Quote
Old 16th June 2010, 12:45 PM   #602
diyAudio Member
 
Tube Pro's Avatar
 
Join Date: Nov 2009
Location: Macao
Hi Apex,
How about a LDR and a LED encapsulated in a dark small tube facing each other to form a modified NSL32, will that work fine for the limiter circuit? Any suggestion instead?
How about the MOCxxx series?
My friend have hard time looking for this opto coupler NSL32 in the Philippines.
Thanks & Regards,
>Joel
  Reply With Quote
Old 16th June 2010, 01:16 PM   #603
diyAudio Member
 
Tube Pro's Avatar
 
Join Date: Nov 2009
Location: Macao
@ Apex,
How about the diode below to replace BAV21?
1N4937 1A 600V Fast Recovery Diode (DO-41 Glass)
Regards...
  Reply With Quote
Old 16th June 2010, 03:46 PM   #604
diyAudio Member
 
apexaudio's Avatar
 
Join Date: Feb 2010
Location: Serbia
Quote:
Originally Posted by Tube Pro View Post
@ Apex,
How about the diode below to replace BAV21?
1N4937 1A 600V Fast Recovery Diode (DO-41 Glass)
Regards...
Recovery time of 1N4937 is 200ns, and BAV21 have 50ns, MUR120 have 50ns and you can find lots of similar fast recovery diode.
Regards
  Reply With Quote
Old 16th June 2010, 03:49 PM   #605
diyAudio Member
 
apexaudio's Avatar
 
Join Date: Feb 2010
Location: Serbia
Quote:
Originally Posted by Tube Pro View Post
Hi Apex,
How about a LDR and a LED encapsulated in a dark small tube facing each other to form a modified NSL32, will that work fine for the limiter circuit? Any suggestion instead?
How about the MOCxxx series?
My friend have hard time looking for this opto coupler NSL32 in the Philippines.
Thanks & Regards,
>Joel
Optocoupler with resistor output can be used for limiter, and you can made some with led diode and optoresistor,
Regards
  Reply With Quote
Old 16th June 2010, 03:54 PM   #606
diyAudio Member
 
Tube Pro's Avatar
 
Join Date: Nov 2009
Location: Macao
Thanks Mile...
  Reply With Quote
Old 20th June 2010, 04:10 AM   #607
khalsa is offline khalsa  India
diyAudio Member
 
Join Date: Dec 2007
Send a message via Yahoo to khalsa
Hi Apex i want build h900 with double step diriver plz guide the circuit
  Reply With Quote
Old 20th June 2010, 08:08 AM   #608
diyAudio Member
 
apexaudio's Avatar
 
Join Date: Feb 2010
Location: Serbia
Quote:
Originally Posted by khalsa View Post
Hi Apex i want build h900 with double step diriver plz guide the circuit
There is no H900 with double step driver, use circuit from this amp,
Regards
Attached Images
File Type: jpg APEX VERTEX.jpg (546.1 KB, 2095 views)
  Reply With Quote
Old 20th June 2010, 08:35 AM   #609
diyAudio Member
 
Tube Pro's Avatar
 
Join Date: Nov 2009
Location: Macao
Quote:
Originally Posted by apexaudio View Post
There is no H900 with double step driver, use circuit from this amp,
Regards
Do you have the PCB design for that schematic?
Thanks.
  Reply With Quote
Old 20th June 2010, 10:18 AM   #610
diyAudio Member
 
apexaudio's Avatar
 
Join Date: Feb 2010
Location: Serbia
Quote:
Originally Posted by Tube Pro View Post
Do you have the PCB design for that schematic?
Thanks.
Sorry, there is no pcb of this amplifier for share, but I think designing pcb is no problem for people who want to build 2500W amp.
Regards

Last edited by apexaudio; 20th June 2010 at 10:30 AM.
  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
Nakamichi PA-7 & PA-5 Bias Setting? sourceoneaudio Solid State 6 8th March 2012 12:37 PM
900w amp module for sale nigelwright7557 Swap Meet 0 9th July 2009 11:05 PM
About a very very simple class D PA amp gaetan8888 Class D 8 13th March 2009 02:21 PM
Class-d for a 1kw PA amp MikeHunt79 Class D 4 30th December 2007 06:19 PM
200w Amp + 900w Sub = explosion? 56k Warning Daemonicus Subwoofers 2 31st May 2006 04:30 AM


New To Site? Need Help?

All times are GMT. The time now is 02:04 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