Is PSUD II trust-worthy or not? - Page 2 - 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 31st March 2012, 10:49 PM   #11
diyAudio Member
 
Join Date: Jun 2011
@zigzagflux: I'd love to post data file, but i can only save it in .psu file and according to this forum it's un-recognizable....
I'll try tomorrow to print it and scan it into JPG or some similar file type.
  Reply With Quote
Old 31st March 2012, 11:02 PM   #12
diyAudio Member
 
Join Date: Jun 2011
Found the way! I zipped it and here it is...
Attached Files
File Type: zip valve dc psu.zip (274 Bytes, 26 views)
  Reply With Quote
Old 1st April 2012, 12:56 AM   #13
diyAudio Member
 
Loudthud's Avatar
 
Join Date: Nov 2007
Location: Near Dallas Texas USA
Do you have the load in the right place according to what you built?

What are the numbers from your transformer?
  Reply With Quote
Old 1st April 2012, 01:41 AM   #14
diyAudio Member
 
zigzagflux's Avatar
 
Join Date: Oct 2006
Location: Charlotte, NC
Right, accurate measurements of your transformer is the most critical part of the simulation. Also measure your wall voltage around the same time you measure the unloaded secondary voltage.

A schematic of your amplifier will help us confirm the load in PSUD as well. At a minimum, you need a reasonable estimate of the current draw at the target DC voltage.
  Reply With Quote
Old 1st April 2012, 02:09 AM   #15
diyAudio Member
 
Join Date: Jun 2011
I will post all the data from the transformer as soon as get home (it should happen within 5 days). And yeah, it gets pretty much the load i need. Anyway, i'm building myself an RH84, but using russian 6p14p-ev instead (they draw a little bit more current on heater as well as Ia, but they're made to last long time, and they're sturdy....ow yeah, the sound is so much better, being a lot cheaper than EL84).
As attachment i've put the schematics.
Attached Images
File Type: gif EL84_SE_ECC81.gif (11.1 KB, 133 views)
  Reply With Quote
Old 1st April 2012, 05:27 PM   #16
diyAudio Member
 
zigzagflux's Avatar
 
Join Date: Oct 2006
Location: Charlotte, NC
So you do realize for starters your PSUD model is not close to the schematic you provided? The schematic shows FW center-tap, you have FW bridge. Schematic shows tube rectifier, you have semi. Caps and chokes are different values. You have not modeled the input stage draw. Not that it can't work, but we need to know exactly what your schematic is, not a representative one.
  Reply With Quote
Old 2nd April 2012, 01:03 AM   #17
diyAudio Member
 
Join Date: Jun 2011
@zigzagflux: my bad... i know i messed up and by mistake (thinking about something else when posting) have put the wrong schematic in, and i deeply appologize. I'm not at home now and got only a few minutes per day to go online. I will continue with the project as soon as i get home, though...
Anyway, i cannot thank you enough guys....i really appreciate it.
  Reply With Quote
Old 6th April 2012, 08:53 PM   #18
diyAudio Member
 
mr2racer's Avatar
 
Join Date: Jul 2009
Stupid question here. In PSUD how do you add caps and resistors?
  Reply With Quote
Old 7th April 2012, 02:40 AM   #19
diyAudio Member
 
PlasticIsGood's Avatar
 
Join Date: Mar 2012
Location: Bradford
Quote:
Originally Posted by Loudthud View Post
...
To get accurate results for RMS current, the simulation needs to run an integral number of cycles...
integer.

Wasted a minutesworth of wondering...

Ian
  Reply With Quote
Old 7th April 2012, 03:59 AM   #20
diyAudio Member
 
Loudthud's Avatar
 
Join Date: Nov 2007
Location: Near Dallas Texas USA
integral \in-ti-grel\ adj 1 : essential to completeness 2 : formed as a unit with another part 3 : composed of parts that make up a whole 4 : ENTIRE
  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
SimpleSE PSUD II B+ squiffiness Tubelab 19 31st January 2012 02:15 AM
Need help with PSUD II model jrenkin Tubes / Valves 6 14th February 2010 12:12 AM
PSUD II soft start Richard Ellis Tubes / Valves 1 12th November 2009 02:41 AM
Tube tester and PSUD II questions boywonder Tubes / Valves 6 26th August 2008 12:38 AM
PSUD II help Bengali Tubes / Valves 10 15th September 2007 04:58 PM


New To Site? Need Help?

All times are GMT. The time now is 02:56 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