+/- 85 volts symmetrical power supply - 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 22nd May 2010, 09:34 PM   #1
diyAudio Member
 
Join Date: May 2010
Location: Where the world's best tea come from:Kericho Kenya
Default +/- 85 volts symmetrical power supply

Hi,
am planning to build a 300 watts mosfet power amplifier,it requires a +/-85 volts symmetric power supply.I've never built a symmetrical power supply before,i recently leart of the simple symmetric power supply consisting of a center tapped transformer,a bridge rectifier and two filter capacitors.
My question is:is this setup suitable for a 300 watts power amplifier or does it need some sort of regulation?If so,what power supply schematic would be appriate for this amplifier?
Thanks.
__________________
if there are no sparks,it probably doesn't work!
  Reply With Quote
Old 22nd May 2010, 09:49 PM   #2
diyAudio Member
 
nigelwright7557's Avatar
 
Join Date: Apr 2008
Location: Carlisle, England
Most solid state amplifiers dont need any regulation.
  Reply With Quote
Old 22nd May 2010, 09:57 PM   #3
qsa is offline qsa  Germany
diyAudio Member
 
qsa's Avatar
 
Join Date: May 2007
Quote:
Originally Posted by xeclipse View Post
Hi,
am planning to build a 300 watts mosfet power amplifier,it requires a +/-85 volts symmetric power supply.I've never built a symmetrical power supply before,i recently leart of the simple symmetric power supply consisting of a center tapped transformer,a bridge rectifier and two filter capacitors.
My question is:is this setup suitable for a 300 watts power amplifier or does it need some sort of regulation?If so,what power supply schematic would be appriate for this amplifier?
Thanks.
go to

Power amp under development


Quasi was starting this thread in 2004

6 years later its a Professional AMP with a lot of features and this MOSFET amp sound really great

have designed PCB 237 x 80 mm and add to the original QUASI Design some improvement and features for the DIY community

+/- 85V you can get up to 1000W @ 2 ohm

look attachments
Attached Files
File Type: pdf N-VMOS schematic Beta 3 22.02.2010.pdf (33.4 KB, 169 views)
File Type: pdf N-VMOS PCB Layout Beta 3 22.05.2010.pdf (153.3 KB, 101 views)

Last edited by qsa; 22nd May 2010 at 10:02 PM.
  Reply With Quote
Old 23rd May 2010, 06:29 AM   #4
diyAudio Member
 
Join Date: May 2010
Location: Where the world's best tea come from:Kericho Kenya
Thanks Nigelwright,so you mean the simple circuit is ok for the power supply?
__________________
if there are no sparks,it probably doesn't work!
  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
Negative volts and grounding in bench power supply falcott Parts 11 29th April 2011 04:42 PM
how to use 30 volts DC instead of split power Supply ali_moinuddin Pass Labs 5 2nd April 2008 11:34 PM
power supply question.... too many Volts? akimball442 Tubes / Valves 3 18th February 2007 05:12 PM
16 volts 3A regulated power supply help sunny Power Supplies 30 3rd November 2006 12:51 AM
Volts AC rating in power supply caps rick57 Tubes / Valves 6 28th May 2006 01:59 AM


New To Site? Need Help?

All times are GMT. The time now is 09:59 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