ucd 25 watts to 1200 watts using 2 mosfets - Page 168 - 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 24th February 2012, 04:35 PM   #1671
Dimonis is offline Dimonis  Russian Federation
diyAudio Member
 
Dimonis's Avatar
 
Join Date: Mar 2011
Location: RF 33 Vladimir
Quote:
Originally Posted by manojtm View Post
Hi All

This is My Final circuit with Over Temp.,Over Current,Auto Limiter,CLIP and DC Protect with Delayed ON.
I designed a PCB without Auto limiter,CLIP & DC Protect
It can give an OUTPUT 1,875Watt @4Ohm Load (3xIRFP250)
The L3 coil\inductor will simply melt based on that core

Last edited by Dimonis; 24th February 2012 at 04:43 PM.
  Reply With Quote
Old 24th February 2012, 04:42 PM   #1672
Dimonis is offline Dimonis  Russian Federation
diyAudio Member
 
Dimonis's Avatar
 
Join Date: Mar 2011
Location: RF 33 Vladimir
Quote:
Originally Posted by manojtm View Post
Hi All

This is My Final circuit with Over Temp.,Over Current,Auto Limiter,CLIP and DC Protect with Delayed ON.
I designed a PCB without Auto limiter,CLIP & DC Protect
It can give an OUTPUT 1,875Watt @4Ohm Load (3xIRFP250)
How?????
75V*75V /2/4Ohm =703Watt
  Reply With Quote
Old 24th February 2012, 04:46 PM   #1673
diyAudio Member
 
andrewlebon's Avatar
 
Join Date: Feb 2008
Default bridging ucd amplifier

Hi
greetings please can any one help to see if this schematic is correct for
bridging ucd amp as i am new to class d any help greatly appreciated
warm regards
andrew lebon
Attached Images
File Type: jpg PIC2.jpg (190.8 KB, 785 views)
  Reply With Quote
Old 24th February 2012, 05:13 PM   #1674
Dimonis is offline Dimonis  Russian Federation
diyAudio Member
 
Dimonis's Avatar
 
Join Date: Mar 2011
Location: RF 33 Vladimir
Quote:
Originally Posted by andrewlebon View Post
Hi
greetings please can any one help to see if this schematic is correct for
bridging ucd amp as i am new to class d any help greatly appreciated
warm regards
andrew lebon
Hi Andrew !
The schematic is relatively correct , I know the author , he's just an amatuer theorist3
Catch a working bridge
Attached Files
File Type: pdf 1200w.PDF (80.3 KB, 632 views)
  Reply With Quote
Old 24th February 2012, 05:14 PM   #1675
CPX is offline CPX  Romania
diyAudio Member
 
Join Date: Nov 2004
Location: Cluj
Dimonis:
It is an ultra low permeabily iron powder toroid.

Last edited by CPX; 24th February 2012 at 05:17 PM.
  Reply With Quote
Old 24th February 2012, 05:21 PM   #1676
Dimonis is offline Dimonis  Russian Federation
diyAudio Member
 
Dimonis's Avatar
 
Join Date: Mar 2011
Location: RF 33 Vladimir
Quote:
Originally Posted by CPX View Post
ultra low .
How low?
The lowest that i know is "the red core" - permeability = 10

Last edited by Dimonis; 24th February 2012 at 05:26 PM.
  Reply With Quote
Old 24th February 2012, 05:27 PM   #1677
CPX is offline CPX  Romania
diyAudio Member
 
Join Date: Nov 2004
Location: Cluj
No..blue and yelow are lower..look here:
Toroids - Micro Metals / Iron Powder

Red is just more famous..i also used red because i had no space for others since more turns were needed for the same inductance.

Last edited by CPX; 24th February 2012 at 05:31 PM.
  Reply With Quote
Old 24th February 2012, 05:32 PM   #1678
Dimonis is offline Dimonis  Russian Federation
diyAudio Member
 
Dimonis's Avatar
 
Join Date: Mar 2011
Location: RF 33 Vladimir
Quote:
Originally Posted by CPX View Post
Dimonis:
It is an ultra low permeabily iron powder toroid.
Sorry , I got it - material №28 permeability = 22 , not so low аs though
  Reply With Quote
Old 24th February 2012, 05:38 PM   #1679
Dimonis is offline Dimonis  Russian Federation
diyAudio Member
 
Dimonis's Avatar
 
Join Date: Mar 2011
Location: RF 33 Vladimir
Quote:
Originally Posted by CPX View Post
No..blue and yelow are lower..look here:
Toroids - Micro Metals / Iron Powder

Red is just more famous..i also used red because i had no space for others since more turns were needed for the same inductance.
Didn't find blue
  Reply With Quote
Old 24th February 2012, 05:39 PM   #1680
CPX is offline CPX  Romania
diyAudio Member
 
Join Date: Nov 2004
Location: Cluj
17 Mix (Blue/Yellow).
I do not think is pure blue in those pictures...
Also the red i have is red/gray in fact....there are lots of variations..

Last edited by CPX; 24th February 2012 at 05:47 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
Philips 40/25/15 watts amplifier with Universal preamplifier circuit. renjiish Solid State 64 28th July 2014 11:33 AM
Decibel Watts VS Watts ? fivestring Solid State 11 1st April 2009 01:08 PM
AMP1-B: why only 25 watts @8ohms? theAnonymous1 Class D 10 15th August 2005 06:55 PM
Sound quality of amps at 0.3 watts vs @ typical 5 watts rick57 Solid State 2 26th March 2005 06:25 AM
Need 2 watts Vivek Everything Else 4 17th July 2003 08:29 AM


New To Site? Need Help?

All times are GMT. The time now is 11:47 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