Lobbying for a Class D Forum - Page 3 - 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 21st May 2004, 10:49 AM   #21
diyAudio Member
 
Join Date: Dec 2002
Location: Slovenia
Quote:
i would like to have options for personal settings what forums i want to have displayed. Now i can choose between audio only, video only, all. I would like some checkbox system so i can choose what to see and what not
Hi,

is there anything preventing you to start a new thread with such a request?

Best regards,

Jaka Racman
  Reply With Quote
Old 22nd May 2004, 09:21 PM   #22
diyAudio Member
 
Join Date: Apr 2004
Location: BE/NL/RW/ZA
Quote:
Originally posted by wytco0
Yes please, I assume this will include other digital types like T.

Quote:
Originally posted by Immo_G
Would you consider class D and tripath amps close enough to switch mode power supplies to use the same forum section? I can't see any problem with it
Tripath or "class T" is class D by all technical standards. The "T" designation is a commercial item.

I think it's safe to say that a class D amplifier is one where all the power devices are operated as switches.

btw: I don't consider linear amps with tracking switchmode supplies (aka sunfire, bash etc) class D, but I reckon none of you does.

Cheers,

Bruno
  Reply With Quote
Old 22nd May 2004, 09:27 PM   #23
diyAudio Member
 
Join Date: Apr 2004
Location: BE/NL/RW/ZA
Quote:
Originally posted by till
nothing against an additional class d forum, also next will be people want class a, class ab, class b and class c forum...
Hang on there... You can move any [push-pull] linear amp design from class a thru ab to class b simply by changing the amount of bias current.

Class C is for single frequencies only and requires the addition of a tank circuit after the bias voltage was made below-threshold.

However, class D is a completely different animal - you can't go to class D by simply tweaking the bias pot.

Therefore the difference between linear and switching amplifiers is very real.

Maybe the forum could be called "switchmode power" to get rid of the confusion, but that wouldn't be more than an act of linguistic purism.

Cheers,

Bruno
  Reply With Quote
Old 22nd May 2004, 11:24 PM   #24
subwo1 is offline subwo1  United States
diyAudio Member
 
subwo1's Avatar
 
Join Date: Jan 2002
Location: North American Continent
Quote:
btw: I don't consider linear amps with tracking switchmode supplies (aka sunfire, bash etc) class D, but I reckon none of you does.
I guess I would put them in the class H category.
__________________
USMPS
http://groups.yahoo.com/group/switchmode/
  Reply With Quote
Old 23rd May 2004, 12:40 AM   #25
diyAudio Member
 
kilowattski's Avatar
 
Join Date: Aug 2003
Location: Long Island, New York
Why not have the new forum called the "Digital Amplifier Forum"
__________________
-----------------------------------------------
Kilowattski
  Reply With Quote
Old 23rd May 2004, 12:21 PM   #26
diyAudio Member
 
Circlotron's Avatar
 
Join Date: Jun 2002
Location: Melbourne, Australia
Quote:
Originally posted by Bruno Putzeys
Maybe the forum could be called "switchmode power" to get rid of the confusion, but that wouldn't be more than an act of linguistic purism.
Someone already "owns" that word.
Boy! I wish I could sell words to people. What a great business that would be!
Attached Images
File Type: gif switchmode.gif (7.3 KB, 294 views)
  Reply With Quote
Old 23rd May 2004, 12:45 PM   #27
skaara is offline skaara  Slovenia
diyAudio Member
 
Join Date: Jun 2002
Location: Europe, Slovenia
Because Class D isnt digital..
  Reply With Quote
Old 23rd May 2004, 12:58 PM   #28
subwo1 is offline subwo1  United States
diyAudio Member
 
subwo1's Avatar
 
Join Date: Jan 2002
Location: North American Continent
Hmm, I don't know what to say, Circlotron. Maybe small case lettering is not covered in the Motorola claim. It does't seem possible to be able to buy and sell words. I can see a word like "Kleenex", but "switchmode"? Don't some people feel any shame?
__________________
USMPS
http://groups.yahoo.com/group/switchmode/
  Reply With Quote
Old 24th May 2004, 12:45 PM   #29
diyAudio Member
 
Circlotron's Avatar
 
Join Date: Jun 2002
Location: Melbourne, Australia
Quote:
Originally posted by subwo1
Maybe small case lettering is not covered in the Motorola claim.
Translated to web-language -> sWiTcHmOdE

What about "High-Frequency Power Conversion and Power Amps" ?
  Reply With Quote
Old 24th May 2004, 12:49 PM   #30
Electrons are yellow and more is better!
diyAudio Member
 
peranders's Avatar
 
Join Date: Apr 2002
Location: Göteborg, Sweden
Blog Entries: 4
The moderators haven't talked so much about this but the time is working for a separate forum for class D but right now class D is VERY rare amongst DIY'ers.... even more rare than SMD
__________________
/Per-Anders (my first name) or P-A as my friends call me
Tube Buffered Gainclone in work |Thread || Diamond buffer |Thread for the group buy | Wiki
  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
A forum friend has sent me this Class A created in 1967 destroyer X Solid State 16 8th November 2008 07:26 PM
Forum for issues related to the design of Class D amplifiers sovadk Class D 57 13th December 2006 06:45 AM


New To Site? Need Help?

All times are GMT. The time now is 03:40 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