Problem with Hypex - diyAudio
Go Back   Home > Forums > Amplifiers > Class D

Class D Switching Power Amplifiers and Power D/A conversion

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 15th March 2014, 12:38 PM   #1
diyAudio Member
 
exp4nder's Avatar
 
Join Date: May 2010
Default Problem with Hypex

I finished my amp today with SMPS400A180-UCD180 and when i powered it on i hadn't noticed that the safety ground cable from the IEC was free and had moved and touched the pin in which you choose 115 or 230v in the SMPS. So there was a little flare and little smoke. I measured the smps and it seems ok, 46V,0,-46V, but the two amps that the smps connects to, just play cracks and pops through the drivers they power (active setup). So i guess it must have burnt a common ground...any idea?
  Reply With Quote
Old 16th March 2014, 02:12 PM   #2
diyAudio Member
 
exp4nder's Avatar
 
Join Date: May 2010
Today i went to a friend with an oscilloscope...bad news...the modulator in one amp doesn't work at all and the other amp modulator works in 80khz instead of 400khz...so, my final thought is that when the safety ground cable from the iec touched the 115pin, it must have switched momentarily the SMPS to 115V function and so it sent the double volts to the amps and burnt some parts...

Last edited by exp4nder; 16th March 2014 at 02:14 PM.
  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
Hypex problem, who can help Hansms Class D 9 18th August 2013 06:49 AM
Please help me diagnose a Hypex problem mrimaging Class D 3 20th July 2013 09:28 PM
Problem with Hypex SMPS400/67 (OEM V4) tatus Power Supplies 8 25th April 2012 12:04 PM
Hypex UCD400 OVP problem ekaerin Class D 7 20th September 2010 05:30 PM
Hypex HS200 problem Mat-d-rat Subwoofers 2 2nd March 2005 12:40 PM


New To Site? Need Help?

All times are GMT. The time now is 02:11 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