Go Back   Home > Forums > >
Home Forums Rules Articles diyAudio Store Blogs Gallery Wiki Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Class D Switching Power Amplifiers and Power D/A conversion

New 500W reference design from Zetex
New 500W reference design from Zetex
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
Thread Tools Search this Thread
Old 31st March 2005, 12:44 PM   #1
thecyberdude is offline thecyberdude  Denmark
diyAudio Member
Join Date: Jul 2004
Location: Copenhagen
Exclamation New 500W reference design from Zetex

FYI - a new reference design aming for 500W/4ohm is soon avilable from Zetex: http://www.zetex.com/audio/audio04_3.asp

I've made a couple of high power designs based on the Zetex ZXCD1000 controller but without feedback thus THD performance was rather poor. However this is not the case with this new design THD+N <0.01% @ 100W - looks very interresting....

The fact that the ZXCD1000 integrates the triwave generator and the pwm comparator in a single package solves quite a few layout issues otherwise encountered with more "descrete" solutions. Of course the layout of the power stage needs some attention too but nevertheless you'll have a good starting point.
  Reply With Quote
Old 1st April 2005, 11:14 PM   #2
Evan Shultz is offline Evan Shultz  United States
diyAudio Member
Join Date: Jun 2004
Location: California, USA
The press release seems to indicate the 500W amp uses feedback taken after the filter. Also, it states that all output devices are N-channel so some type of gate driver must be used since the ZXCD1000 cannot drive 4 N-channel FETs by itself. Very interesting...
  Reply With Quote


New 500W reference design from ZetexHide 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
reference 3a woofer design DAMIC Multi-Way 4 29th August 2017 03:30 AM
Reference book for amp design Ted205 Solid State 7 30th March 2009 03:02 PM
Selfoscillating HalfBridge 500W+500W by IR. Interested? deflorator Class D 0 10th October 2004 04:30 PM
LS3/5a as reference for X-over design ekaerin Multi-Way 6 18th September 2004 07:50 PM
Inducter Design Reference bwoca Multi-Way 2 25th April 2001 02:12 AM

New To Site? Need Help?

All times are GMT. The time now is 06:01 PM.

Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 15.79%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Copyright ©1999-2018 diyAudio