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 7th April 2010, 12:20 AM   #161
diyAudio Member
 
apexaudio's Avatar
 
Join Date: Feb 2010
Location: Serbia
Quote:
Originally Posted by jash2008 View Post
Thanks for the corrections.
U can also use this circuit, no need for cut-out circuit on PSU pcb.
Regards
Attached Images
File Type: jpg APEX MOSFET HV350.jpg (506.7 KB, 1747 views)
  Reply With Quote
Old 7th April 2010, 09:17 AM   #162
diyAudio Member
 
jash2008's Avatar
 
Join Date: Sep 2008
Location: MP
Quote:
Originally Posted by apexaudio View Post
U can also use this circuit, no need for cut-out circuit on PSU pcb.
Regards
By the way, this might be a silly question:

You have designated some resistors as "FP" (example gate resistors) in your all drawings. Does it means something special?
  Reply With Quote
Old 7th April 2010, 09:23 AM   #163
diyAudio Member
 
east electronics's Avatar
 
Join Date: Jan 2006
Location: Athens GREECE
flame proof
__________________
SERVICE ΕΝΙΣΧΥΤΩΝ ΚΑΙ ΙΑΠΩΝΙΚΩΝ ΜΗΧΑΝΗΜΑΤΩΝ ΗΧΟΥ www.eastelectronics.gr
  Reply With Quote
Old 7th April 2010, 09:30 AM   #164
diyAudio Member
 
jash2008's Avatar
 
Join Date: Sep 2008
Location: MP
Quote:
Originally Posted by sakis View Post
flame proof
Ok, thanks
  Reply With Quote
Old 8th April 2010, 11:14 PM   #165
diyAudio Member
 
apexaudio's Avatar
 
Join Date: Feb 2010
Location: Serbia
Quote:
Originally Posted by jash2008 View Post
By the way, this might be a silly question:

You have designated some resistors as "FP" (example gate resistors) in your all drawings. Does it means something special?
If U use circuit in post #161 one BC546 for bias must be on heatsink with outputs fets. Sakis already answer about FP.
Regards
  Reply With Quote
Old 9th April 2010, 05:28 PM   #166
Valenca is offline Valenca  Brazil
diyAudio Member
 
Join Date: Nov 2007
Hi apexaudio !

I can feed this amplifier with 90 + / 90 - volt DC? Works well?
  Reply With Quote
Old 9th April 2010, 05:41 PM   #167
diyAudio Member
 
apexaudio's Avatar
 
Join Date: Feb 2010
Location: Serbia
Quote:
Originally Posted by Valenca View Post
Hi apexaudio !

I can feed this amplifier with 90 + / 90 - volt DC? Works well?
In post #1 U can find picture of this amplifier with 5 pairs mosfet which worked on +/-90V, but not for PA.
Regards
  Reply With Quote
Old 9th April 2010, 06:10 PM   #168
Valenca is offline Valenca  Brazil
diyAudio Member
 
Join Date: Nov 2007
OK, but is there any limitation for use in PA?
  Reply With Quote
Old 9th April 2010, 06:54 PM   #169
diyAudio Member
 
apexaudio's Avatar
 
Join Date: Feb 2010
Location: Serbia
Quote:
Originally Posted by Valenca View Post
OK, but is there any limitation for use in PA?
No, but +/-75V is safty operation in PA
  Reply With Quote
Old 10th April 2010, 04:08 PM   #170
khalsa is offline khalsa  India
diyAudio Member
 
Join Date: Dec 2007
Send a message via Yahoo to khalsa
Hi apex, I want ur pcb drawing with vi limiter of ur #161 circuit,
Thanks
  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
IRFP240&IRFP9240 power amplifier schematic mos Solid State 31 26th June 2012 08:21 AM
IRFP240 / IRFP9240 MOSFETs danieljw Swap Meet 8 4th July 2009 01:51 AM
Wtb: Irfp240 / Irfp9240 folkeb Swap Meet 1 10th March 2009 10:18 AM
IRFP240 + IRFP9240 -- pairs jackinnj Swap Meet 1 2nd June 2006 02:22 AM
IRFP240 and IRFP9240 Wanted richeros Swap Meet 1 9th November 2002 12:38 PM


New To Site? Need Help?

All times are GMT. The time now is 01:12 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