pass-d : zen using a switched constant current source - diyAudio
Go Back   Home > Forums > Amplifiers > Pass Labs

Pass Labs This forum is dedicated to Pass Labs discussion.

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 14th June 2010, 10:32 AM   #1
diyAudio Member
 
chriscam's Avatar
 
Join Date: Jul 2003
Location: Amsterdam
Default pass-d : zen using a switched constant current source

hi there,

While enjoying The Zen Variations - Part 2 I stumbled into the paragraph where Papa says :

The current source can be made as simple as a resistor (or a light bulb), but it is generally advantageous to make it out of something more complex, since using a resistor results in about 8% efficiency or so, and this being power circuit, wasting this much power gets costly and is socially incorrect.
Since about half the output power gets dissipated in the constant current source I wonder if it makes sense to replace it with a - preferably resonant - bucket switcher ?

Searching this forum for switched current source gave no joy which makes me wonder, could this work or does it just sound so horrible no one even bothered to give it a try ?

Last edited by chriscam; 14th June 2010 at 10:42 AM.
  Reply With Quote
Old 14th June 2010, 01:25 PM   #2
diyAudio Member
 
StevenOH's Avatar
 
Join Date: Jun 2004
Switching current source for Class A?
__________________
The truth is out there. Who can handle the truth?
  Reply With Quote
Old 14th June 2010, 01:46 PM   #3
diyAudio Member
 
chriscam's Avatar
 
Join Date: Jul 2003
Location: Amsterdam
ahhh, got it, thanks for pointing !
  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
Pass: Constant Current Source Filter Networks AudioAngel Pass Labs 3 28th December 2006 06:50 PM
constant current source hacknet Solid State 19 13th March 2006 02:46 PM
Aleph+Constant current sources X-ZEN stefanobilliani Pass Labs 46 18th January 2005 02:53 AM
Constant Current Source A/B Test EchoWars Solid State 20 14th March 2003 12:49 AM


New To Site? Need Help?

All times are GMT. The time now is 08:01 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