MUR860 Full Bridge Rectifier - diyAudio
Go Back   Home > Forums > Amplifiers > Power Supplies

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 18th December 2012, 02:14 AM   #1
Einric is offline Einric  United States
diyAudio Member
 
Einric's Avatar
 
Join Date: Feb 2011
Location: Bozeman, MT
Default MUR860 Full Bridge Rectifier

How would a full wave bridge rectifier made from naked MUR860's stack up against a standard 35A potted Full Wave Bridge Rectifier?
  Reply With Quote
Old 18th December 2012, 02:39 AM   #2
diyAudio Member
 
Join Date: May 2005
Location: toronto
Mur 860 is only good for 8 amps. If it's a high power 100 watts or more power amp with big 22,000 uf caps or more then you want higher current rated diodes
IR has some nice 25 amp hexfets ( and 60 amps). Harris, Fairchild, etc
  Reply With Quote
Old 18th December 2012, 02:43 AM   #3
diyAudio Member
 
Triodethom's Avatar
 
Join Date: Dec 2009
Location: Newnan GA
Quote:
Originally Posted by Einric View Post
How would a full wave bridge rectifier made from naked MUR860's stack up against a standard 35A potted Full Wave Bridge Rectifier?
There are some question before that can be answered . 1. how big is the current requirement . 2. how big the first cap. 3. What curcuit do you want to power.
  Reply With Quote
Old 18th December 2012, 02:59 AM   #4
Einric is offline Einric  United States
diyAudio Member
 
Einric's Avatar
 
Join Date: Feb 2011
Location: Bozeman, MT
Well this will be for a Pass F4.
I will be using the DIY Audio pcb's and running about 1.5A of bias.
The first cap will be 2 15kuF in parallel followed by .11R then 3 15kuF in parallel.
  Reply With Quote
Old 18th December 2012, 03:06 AM   #5
Einric is offline Einric  United States
diyAudio Member
 
Einric's Avatar
 
Join Date: Feb 2011
Location: Bozeman, MT
Someone had suggested I use Schottky Rectifiers instead of the MUR860.
Would something like this be more suitable?
  Reply With Quote
Old 18th December 2012, 03:17 AM   #6
diyAudio Member
 
Triodethom's Avatar
 
Join Date: Dec 2009
Location: Newnan GA
Quote:
Originally Posted by Einric View Post
Someone had suggested I use Schottky Rectifiers instead of the MUR860.
Would something like this be more suitable?
try
STPS30100ST STPS30100ST STMicroelectronics | Mouser

That has a 100 volt version .
  Reply With Quote
Old 18th December 2012, 03:21 AM   #7
Einric is offline Einric  United States
diyAudio Member
 
Einric's Avatar
 
Join Date: Feb 2011
Location: Bozeman, MT
I see that one also has two anodes that are electrically common.
And it's cheaper!
It just has a higher forward voltage drop.
  Reply With Quote
Old 18th December 2012, 01:56 PM   #8
diyAudio Member
 
Triodethom's Avatar
 
Join Date: Dec 2009
Location: Newnan GA
for this 30a and keep your piv up and you are there as far as I can see then use good caps.
  Reply With Quote
Old 18th December 2012, 11:14 PM   #9
Einric is offline Einric  United States
diyAudio Member
 
Einric's Avatar
 
Join Date: Feb 2011
Location: Bozeman, MT
I will be using Cornell Dubliner SLP 15000uF 25V 105deg. in a 2-R-3 per rail.
  Reply With Quote
Old 19th December 2012, 12:30 AM   #10
diyAudio Member
 
Robert Kesh's Avatar
 
Join Date: Oct 2012
Quote:
Originally Posted by Einric View Post
I will be using Cornell Dubliner SLP 15000uF 25V 105deg. in a 2-R-3 per rail.
Isn't 25V a little too close to the supply voltage for comfort? Especially before the R.
  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
Full Bridge Rectifier With Tubes Einric Tubes / Valves 9 1st December 2011 06:52 PM
Bridge rectifier vs Full wave rectifier hilbert_mostert Tubes / Valves 4 28th April 2009 08:26 PM
How much AC is usually let through a MUR860 rectifier bridge? bg4533 Power Supplies 9 12th April 2005 03:10 AM
Pcb for MUR860 (or some else TO220 diode), rectifier bridge peranders Swap Meet 14 17th September 2003 10:37 AM


New To Site? Need Help?

All times are GMT. The time now is 11:30 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