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.

Super Regulator
Super Regulator
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 December 2018, 12:30 PM   #1601
polsol is offline polsol  South Africa
diyAudio Member
 
Join Date: Aug 2004
Location: Cape Town
Yes I have the schematic, just thought there might be something beyond my understanding as they weren't selected from the E24 series.
Thanks for the clarification Jan and best wishes for 2019.
__________________
Tony M
  Reply With Quote
Old 31st December 2018, 12:42 PM   #1602
jan.didden is offline jan.didden  Europe
diyAudio Member
 
jan.didden's Avatar
 
Join Date: May 2002
Location: Westende Resort, BE coast
I selected them because I had them in my bin ;-)
+/-20% on each should be fine, any direction.
The two resistors in the feedback divider are important of course (their ratio is) as it sets Vout.

Best wishes for you all as well!

Jan
__________________
Cable: a potential source of trouble interconnecting two other potential sources of trouble - Erik Margan
Linear Audio pubs and articles . The SilentSwitcher now at diyaudio store SilentSwitcher. Keeping in touch with SY.
  Reply With Quote
Old 1st January 2019, 09:50 AM   #1603
polsol is offline polsol  South Africa
diyAudio Member
 
Join Date: Aug 2004
Location: Cape Town
A further few questions if I may:

What is the preferred input to output voltage 'overhead'?
For example, what is the required input voltage to get a required output of say 15V?

Would the regulator be compromised if it was fed an existing DC voltage emanating from a 'Smoothed' DC voltage from a LM317 voltage regulator (from a separate enclosure/box)?

TIA
__________________
Tony M
  Reply With Quote
Old 1st January 2019, 10:46 AM   #1604
jan.didden is offline jan.didden  Europe
diyAudio Member
 
jan.didden's Avatar
 
Join Date: May 2002
Location: Westende Resort, BE coast
Quote:
Originally Posted by polsol View Post
A further few questions if I may:

What is the preferred input to output voltage 'overhead'?
For example, what is the required input voltage to get a required output of say 15V?

Would the regulator be compromised if it was fed an existing DC voltage emanating from a 'Smoothed' DC voltage from a LM317 voltage regulator (from a separate enclosure/box)?

TIA
You must consider the level of ripple on the input voltage. Make sure that the minimum input value (the 'through') of the ripple leaves enough voltage for the regulator to work, lets say minimum 1V.
Remember that mains voltage can vary 10% so if you set the headroom too low, it may drop out of regulation at low mains.

On the other hand, if you have too much headroom, it will heat up the regulator unnecessarily. For instance, with an output current of 150mA and a headroom of 5V the pass device will dissipate 0.15 x 5 = 750mW, which is OK. With 0.5A and 15V headroom it is 7.5W which you probably don't want!

If you feed the reg with smoothed voltage there is much less variation and ripple so you can set the dropout a bit tighter.

In all these cases you must do some experiments and measurements on several times of the day if you use non-stabilised input voltage.

Jan
__________________
Cable: a potential source of trouble interconnecting two other potential sources of trouble - Erik Margan
Linear Audio pubs and articles . The SilentSwitcher now at diyaudio store SilentSwitcher. Keeping in touch with SY.
  Reply With Quote
Old 13th January 2019, 02:51 PM   #1605
powermike145 is offline powermike145  United States
diyAudio Member
 
Join Date: Feb 2012
I'm using an old rectifier from a previous project to supply the SR. I'm getting +20.3V and -20.3V from it and into the SR. My SR outputs are good individually; I'm getting 12.14V (between +Vout and +return) and -12.18V (between -Vout and -return) but there's 16.2V between the +return and -return. That's not good since I'm trying to use the SR in a +12V,0,-12V application. I measured the voltage between the +GND and -GND from the rectifier output and am getting 16.2V as well.


Is this the problem? I need a rectifier that supplies the SR with +return and -return inputs that are at the same potential in order to get my SR return outputs at the same potential (0V referenced between +Vout and -Vout)?
  Reply With Quote
Old 13th January 2019, 05:10 PM   #1606
jan.didden is offline jan.didden  Europe
diyAudio Member
 
jan.didden's Avatar
 
Join Date: May 2002
Location: Westende Resort, BE coast
Well you need to interconnect the two supplies at one point, to get +/-12V, right? If you connect +return and -return and call it 'ground' you have +12, gnd and -12.

You did supply each regulator from an isolated secondary on the xformer? If you have only one xformer/rectifier this won't work of course.
See the drawings in my article on the diyaudio store. I spend a lot of time to make this as clear as possible. Please read it.

Jan
__________________
Cable: a potential source of trouble interconnecting two other potential sources of trouble - Erik Margan
Linear Audio pubs and articles . The SilentSwitcher now at diyaudio store SilentSwitcher. Keeping in touch with SY.
  Reply With Quote
Old 13th January 2019, 06:46 PM   #1607
powermike145 is offline powermike145  United States
diyAudio Member
 
Join Date: Feb 2012
Mr. Didden, thanks for the quick response. Of course, I'm a moron. I had the secondaries connected in parallel. I disconnected those and was able to jumper the SR return outputs to get my 0V reference. All is good now. Thanks for setting me straight!
  Reply With Quote
Old 13th January 2019, 07:03 PM   #1608
jan.didden is offline jan.didden  Europe
diyAudio Member
 
jan.didden's Avatar
 
Join Date: May 2002
Location: Westende Resort, BE coast
__________________
Cable: a potential source of trouble interconnecting two other potential sources of trouble - Erik Margan
Linear Audio pubs and articles . The SilentSwitcher now at diyaudio store SilentSwitcher. Keeping in touch with SY.
  Reply With Quote
Old 8th March 2019, 02:20 AM   #1609
powermike145 is offline powermike145  United States
diyAudio Member
 
Join Date: Feb 2012
I liked my +/-12V super regulator so much that I built a +24V/GND version with one positive board. I followed the recommendations for changing components, but am only getting half the desired voltage output. I have the following components:

R5=8.25K
R6=2K
R7=4.99K
D2=12V Zener diode, NZX12X
D5=LM329
D3,D4=1N4148
Q1=44H11
Q2=BC556BP

Test Readings with Pos out and Return jumpered to each of their sensing terminals:

Pos out measured to Pos return: 12.4V
DC GND measured to each side of the following components:
R1: 33.9V, 31.9V
R3: 1.18V, 1.1V
D2: 1.18V, 13V
D3: 7.86V, 7.26
D4: 7.86, 7.26
R4: 7.27V, 6.96V
R16: 12.27V, 12.49V
R5: 6.96V, 12.5V
R7: 7.86V, 0V
R6: 7.86V, 12.28V

Any ideas on what might be wrong to get a +24V and GND output? Thanks in advanced for any help.
  Reply With Quote
Old 8th March 2019, 01:37 PM   #1610
jan.didden is offline jan.didden  Europe
diyAudio Member
 
jan.didden's Avatar
 
Join Date: May 2002
Location: Westende Resort, BE coast
Contrary to popular belief, I don't have a photographic copy of the circuit in my head. ;-)

A few hints: see if the two opamp inputs are the same voltage. If not, try to reason why. For instance, the +inp should be at the reference, around 6.9V. If the -inp is at the same value (within a few mV), and the opamp output is within its output range, the regulator is working correctly and there is an error with the two feedback resistor values at the -inp.

If the opamp output is slammed all the way up, it is trying to raise the output but not succeeding. Reason could be that the input voltage is too low, or a problem with the pass transistor type/orientation. Or your zener in series with the opamp output is the wrong way around.

Jan
__________________
Cable: a potential source of trouble interconnecting two other potential sources of trouble - Erik Margan
Linear Audio pubs and articles . The SilentSwitcher now at diyaudio store SilentSwitcher. Keeping in touch with SY.
  Reply With Quote

Reply


Super RegulatorHide 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
About Jung super regulator MaxS Power Supplies 125 30th October 2014 11:47 PM
Jung Super Regulator audionut Solid State 5 7th August 2009 01:07 PM
Super Regulator TheDriver Parts 2 21st July 2008 10:54 AM
Lithos regulator - A new super regulator? peranders Parts 7 8th May 2008 02:01 PM
Super Regulator for DAC rockytro Digital Source 11 19th May 2006 07:31 PM


New To Site? Need Help?

All times are GMT. The time now is 01:00 AM.


Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 14.29%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.
Copyright ©1999-2019 diyAudio
Wiki