Using UCD with half bridge power supply - 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 17th October 2007, 04:24 AM   #1
fdeck is offline fdeck  United States
diyAudio Member
 
Join Date: Feb 2006
Location: Wisconsin
Default Using UCD with half bridge power supply

Mainly just on an experimental basis, I would like to try the Hypex 400-Watt module with a half wave power supply, just so I can try it out before spending on the ideal transformer. Any huge pitfalls? I know there is a disadvantage in terms of ripple voltage.

Along the same line, I notice that the UCD400 module has a 65 dB ripple rejection. How does that stack up against typical Class-AB?
  Reply With Quote
Old 17th October 2007, 04:49 AM   #2
BWRX is offline BWRX  United States
diyAudio Moderator Emeritus
 
Join Date: Jan 2005
Location: Pennsylvania
You will need a large capacitor of sufficient votlage rating in series with the output.
__________________
Brian
  Reply With Quote
Old 17th October 2007, 07:19 AM   #3
diyAudio Member
 
theAnonymous1's Avatar
 
Join Date: Feb 2004
Location: Anonymityville
Half-bridge or half-wave? Those are two different things from my understanding.

I think Brian got the impression you meant half-bridge as in a single supply. To me it looks like you meant half-wave as in only two diodes in the rectifier and a single secondary, but still a dual supply(voltage doubler?).

Which is it?
  Reply With Quote
Old 17th October 2007, 11:46 AM   #4
BWRX is offline BWRX  United States
diyAudio Moderator Emeritus
 
Join Date: Jan 2005
Location: Pennsylvania
Quote:
Originally posted by theAnonymous1
I think Brian got the impression you meant half-bridge as in a single supply.
Whoops! For some reason I read that as half power supply and thought fdeck meant single rail supply. I need to read a bit more carefully... Thanks for catching that Anonymous1.

fdeck, using a full wave voltage doubler with a single secondary transformer is doable but certainly not the best way to get a split rail supply.
__________________
Brian
  Reply With Quote
Old 18th October 2007, 12:33 AM   #5
fdeck is offline fdeck  United States
diyAudio Member
 
Join Date: Feb 2006
Location: Wisconsin
Ah, now I see what I did wrong. I wrote "half bridge" in the title, and "half wave" in the body. I meant a voltage doubler with single secondary. Sounds like it should be OK just for a quick test, but not for keeps.
  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
Aleph 30 problem - half of power supply voltage on speakers output yoke Pass Labs 18 15th March 2009 05:18 PM
Full Bridge X Half Bridge: What's The Best? CHACALPOWERS Power Supplies 8 18th July 2008 04:45 PM
half-bridge VS. full-bridge gearheadgene Class D 3 25th May 2007 08:49 PM
The difference of Push-pull,Half-bridge,Full-bridge digi01 Chip Amps 0 8th September 2006 02:10 AM
Whats the difference between full bridge and half-bridge SMPS ? skaara Class D 6 3rd February 2005 07:23 PM


New To Site? Need Help?

All times are GMT. The time now is 05:59 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