Go Back   Home > Forums > >
Home Forums Rules Articles diyAudio Store Blogs Gallery Wiki Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

The diyAudio Store A forum for discussing anything about the products available in The diyAudio Store.

V3 Universal Power Supply Circuit Board
V3 Universal Power Supply Circuit Board
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 January 2018, 03:07 PM   #361
Todd Mills is offline Todd Mills  Canada
diyAudio Member
 
Join Date: Feb 2008
Location: Kitchener
Quote:
Originally Posted by AndrewT View Post
a dual 25Vac transformer will generate ~37Vdc on a lower bias ClassAB amplifier.
Expect a couple of volts less into a Full ClassA amplifier.
That gets your caps down to ~+35Vdc.
Then add on 10% for max mains tolerance and your 40Vdc is still not exceeded.

But what if the amplifier is disconnected? How high will your 25Vac transformer take the PSU when loading is open circuit?
Thank you AndrewT

I have the diyAudio Store Soft start and speaker delay boards that will be installed to cover turn on inrush. I will grab 16 of the 33000mf 40volt Mundorfs from Partsconnexion. I will also see what bridge rectifiers they have that may work as well.

Todd
  Reply With Quote

Reply


V3 Universal Power Supply Circuit BoardHide 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

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Universal Power Supply PCB Peter Daniel Audio Sector 76 26th July 2017 09:45 AM
ACA with Universal Power Supply bnorrish Pass Labs 4 24th November 2012 10:58 PM
Universal power supply board for audio amplifier siliconray Siliconray Online Electronics Store 11 13th February 2012 06:24 AM
■■■■Free Universal Power Supply Board For Tube Amplifiers ■■■■ siliconray Siliconray Online Electronics Store 2 10th January 2012 10:05 AM
My (almost universal) power supply Yoshy Power Supplies 0 7th September 2008 01:18 AM


New To Site? Need Help?

All times are GMT. The time now is 08:05 PM.


Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 14.29%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Copyright ©1999-2018 diyAudio
Wiki