Switched Mode Power Supplies (SMPS) - Page 49 - diyAudio
Go Back   Home > Forums > Commercial Sector > Vendor Forums > Inactive Vendor Forums > Connexelectronic

Connexelectronic Commercial Vendors large & small hawking their wares

 
 
Thread Tools Search this Thread
Old 8th March 2012, 05:00 PM   #481
diyAudio Member
 
Join Date: Jul 2004
Location: Mountain View, CA
Cristi, how long is the delay with the standard soft-start?

I don't see a problem with it being several sec; at least the last five receivers and preamp/processors I've had take at least that long before producing sound.
__________________
-----------------------------------------
Noah
 
Old 8th March 2012, 10:42 PM   #482
Frosteh is offline Frosteh  United States
diyAudio Member
 
Frosteh's Avatar
 
Join Date: May 2011
Location: Kirkland, WA
Cristi, would your A1000SMPS be a suitable replacement for a MeanWell SE-1000-48? I will be using it to power a CNC mill, not audio equipment so I don't really care how noisy it is. I just need to know that I'll be able to supply 48V with a max of ~20A. Thanks!
 
Old 9th March 2012, 10:12 PM   #483
diyAudio Member
 
Join Date: Jan 2008
(SMPS300R) yeah cristi i ve got terible hum with my ground . If i isolated the ground got not hum but it wasn't the solution .. in the documentation "R33 & C33 should be connected using the dedicated pads of the bottom ..
im sorry mut i dont understand ... i look and i dont see ...
 
Old 11th March 2012, 09:24 PM   #484
jclin4 is offline jclin4  United States
diyAudio Member
 
jclin4's Avatar
 
Join Date: Feb 2008
Cristi, an SMPS500R with custom +/-35V cut out on me and the fuse has blown.

I did the incandescent light bulb test as mentioned in an earlier post and the bulb lights continuously when power is turned on. Are the rails are possibly shorted?

Please advise next steps.
 
Old 12th March 2012, 12:07 AM   #485
diyAudio Member
 
Esperado's Avatar
 
Join Date: Jul 2011
Location: France
Two SMPS800R ordered.
__________________
Ultimate Protection and more.The Only Source of Knowledge is experience, everything else is just information” ©A. Einstein
 
Old 13th March 2012, 01:26 AM   #486
jclin4 is offline jclin4  United States
diyAudio Member
 
jclin4's Avatar
 
Join Date: Feb 2008
Quote:
Originally Posted by jclin4 View Post
Cristi, an SMPS500R with custom +/-35V cut out on me and the fuse has blown.

I did the incandescent light bulb test as mentioned in an earlier post and the bulb lights continuously when power is turned on. Are the rails are possibly shorted?

Please advise next steps.
Just to add a bit more information: I have the SMPS500R main voltage connected to a class D amplifier. The aux output is unused. Everything worked fine for many hours until the SMPS500R just stopped.

The fuse it came with is rated at 5A, but I think I read that 8-10A is more appropriate. Could it be that the wrong fuse was put in? Then again the lightbulb across the fuse connections did light continuously....so I don't know.
 
Old 13th March 2012, 11:01 AM   #487
Cristi is offline Cristi  Europe
diyAudio Member
 
Join Date: Dec 2008
Location: Dortmund+Shenzhen
Marco, can you send me a picture of the setup ? the hum have probably other source, an incorrect wire routing or GND loop. the acctual transformers for all the LLC converters have very low stray capacitance between primary and secondary side and hum caused by common mode currents is less likely to appear.
Jclin4, I prefer to be sent back, contact me for details. if there is a problem and is not working again, it might be easier for both of us if is sent back and repair or replaced. in this way i can also identify if there is any manufacturing problem with that particular version, since now i only have the SMPS500R-110V version with problems and i want to find the cause.
__________________
www.connexelectronic.com complete assembled amplifier and SMPS
 
Old 13th March 2012, 11:38 AM   #488
diyAudio Member
 
Join Date: Jan 2008
Quote:
Originally Posted by Cristi View Post
the hum have probably other source, an incorrect wire routing or GND loop. .
Yes it was the cable antenna i try to remove it , i remove the earth no more hum but i got "hiiiiii" in the speakers , the smps must be got a earth.
 
Old 13th March 2012, 03:54 PM   #489
Cristi is offline Cristi  Europe
diyAudio Member
 
Join Date: Dec 2008
Location: Dortmund+Shenzhen
With most configurations, the SMPS and amplifier is working fine with the GND loop breaker connected, and only in some cases where several power supplies are using in the same enclosure which share the output GND might need to be disconnected.
Try to route all the cables at least 5-10 cm away from the power supply, and straight away from it, do not make loops on which the transformer fringing flux can induce noisy currents, and use only one GND point, star GND.
__________________
www.connexelectronic.com complete assembled amplifier and SMPS
 
Old 14th March 2012, 08:03 PM   #490
diyAudio Member
 
brian t's Avatar
 
Join Date: Apr 2002
Location: england
Cristi, can you please advise me which of your power supplies would be suitable for use with the Sure 2X 300W TAS 5630 AMP i was thinking of your smps500r or smps800r .thanks brian
 

 


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
switched-mode power suppies Dimitar13 Everything Else 0 19th February 2008 12:50 AM
PFC Switched-Mode Power Supply N-Channel Power Supplies 57 13th June 2005 07:56 PM
Switched mode power supply MMicke Car Audio 3 19th February 2005 10:42 AM
Switched mode power supplies Magura Parts 13 3rd January 2004 05:44 PM
Switched Mode vs Linear Power Supply royalmp2001 Solid State 4 12th July 2002 08:04 PM


New To Site? Need Help?

All times are GMT. The time now is 08:19 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