I prefer "Class D / Switch-Mode Amplification, power DACs and SMPS"
"Switching" rubs me the wrong way.
Also, and mainly, "Switch-Mode Amplification" portrays an area of discussion of a particular topic, whereas "Switching Amplifiers" portrays a "come and get your finished designs" thread.
I think DACs aren't really amplifiers because the definition of an amplifier is something that amplifies linearly, if you consider the signal you start with in regards to the one you finish with, being identical. Whereas a DAC, while the output signal can be at whatever power level, did not "amplify" but "converted"... symantics.
"Switching" rubs me the wrong way.
Also, and mainly, "Switch-Mode Amplification" portrays an area of discussion of a particular topic, whereas "Switching Amplifiers" portrays a "come and get your finished designs" thread.
I think DACs aren't really amplifiers because the definition of an amplifier is something that amplifies linearly, if you consider the signal you start with in regards to the one you finish with, being identical. Whereas a DAC, while the output signal can be at whatever power level, did not "amplify" but "converted"... symantics.
Perhaps Kofi Annon (sp?) should weigh in here as this seems to be expanding to global scope.
How about calling it "Classes of operation beyond A, B, C."
Not a fire extinguisher rating to be sure, but it might occasionally need one. 😉
How about calling it "Classes of operation beyond A, B, C."
Not a fire extinguisher rating to be sure, but it might occasionally need one. 😉
Howdy,
There seems to be a minor confusion about what is the forum name and what is the subtitle.
If you go to the "amplifiers" level (click on "amplifiers" on the top of the page that says diyaudio forums > top > amplifiers > ...), you will find listings such as
Solid State
Talk all about solid state amplification.
"Solid state" is the name of the forum. It will appear as such in the email notices and on the aforementioned top bar.
"Talk all about solid state amplification" is the subtitle, which appears only on the forum listings.
The name of the forum should be short and concise, and imho should not try to be exhaustive (remember for example that the forum discussing turntables and tape machines is simply called "analog").
The subtitle can be longer and explain what it's all about.
I would propose to keep the forum name "Class D" or "Switching Amplifiers". You can then let your imaginations run wild on the subtitle, although I'm personally still happy with "Switching Power Amplifiers, Power D/A conversion and SMPS".
Cheers,
Bruno
PS: A power DAC is under no circumstances an amplifier. I expect an amplifier to put out exactly what came in, only bigger. If I feed an SPDIF signal into an amplifier I expect nothing else than an SPDIF signal of higher voltage or current.
The "signal amplitude" argument cannot be sustained. Suppose I used 1kV signalling levels and 1ohm line impedance for SPDIF. A device that converts that signal into a 50V analogue audio signal should be called a "digital attenuator" if the "electrical signal amplitude" argument were to hold. To complicate matters further, what if the SPDIF came in optically?
The part of a power DAC circuit that can legitimately be called an amplifier is the switching power stage, because it sees PWM at its input and it strives to reproduce this PWM signal (or at least parts of it, like the timing or the low-frequency content) as truthfully as possible.
There seems to be a minor confusion about what is the forum name and what is the subtitle.
If you go to the "amplifiers" level (click on "amplifiers" on the top of the page that says diyaudio forums > top > amplifiers > ...), you will find listings such as
Solid State
Talk all about solid state amplification.
"Solid state" is the name of the forum. It will appear as such in the email notices and on the aforementioned top bar.
"Talk all about solid state amplification" is the subtitle, which appears only on the forum listings.
The name of the forum should be short and concise, and imho should not try to be exhaustive (remember for example that the forum discussing turntables and tape machines is simply called "analog").
The subtitle can be longer and explain what it's all about.
I would propose to keep the forum name "Class D" or "Switching Amplifiers". You can then let your imaginations run wild on the subtitle, although I'm personally still happy with "Switching Power Amplifiers, Power D/A conversion and SMPS".
Cheers,
Bruno
PS: A power DAC is under no circumstances an amplifier. I expect an amplifier to put out exactly what came in, only bigger. If I feed an SPDIF signal into an amplifier I expect nothing else than an SPDIF signal of higher voltage or current.
The "signal amplitude" argument cannot be sustained. Suppose I used 1kV signalling levels and 1ohm line impedance for SPDIF. A device that converts that signal into a 50V analogue audio signal should be called a "digital attenuator" if the "electrical signal amplitude" argument were to hold. To complicate matters further, what if the SPDIF came in optically?
The part of a power DAC circuit that can legitimately be called an amplifier is the switching power stage, because it sees PWM at its input and it strives to reproduce this PWM signal (or at least parts of it, like the timing or the low-frequency content) as truthfully as possible.
Hi,
You are right, there is alot of room for the subtitles..
I would be very happy with
"Class D" as title and
"Switching Power Amplifiers, Power D/A conversion and SMPS" as the subtitle... with the text flashing on and off 🙄
Poor moderators, they made a real effort to include everything so we'd all be happy and yet..
Thanks once again to everyone who had a hand in bringing this forum to us.
You are right, there is alot of room for the subtitles..
I would be very happy with
"Class D" as title and
"Switching Power Amplifiers, Power D/A conversion and SMPS" as the subtitle... with the text flashing on and off 🙄
Poor moderators, they made a real effort to include everything so we'd all be happy and yet..
Thanks once again to everyone who had a hand in bringing this forum to us.
OK! Now all eyes are on the moderators/webmaster to make the change and to make the forum easier to access (=on the front page along with solid state and tubes).
wytco0 said:
Yup, but I was ill...
wytco0 said:
Now you have made a decision it will go into the vast pile of things to be done!
It will probably happen when we reorganise and update the main page.
Brilliant we are there thanks.
Moderators its probably time to stop this thread being permanant.
Moderators its probably time to stop this thread being permanant.
Hi there,
here is a webpage about analogue EDN. The weeks focus is on audio Class D amps. Perhaps this is of interest for some of you.
Rgds
GKU
EDN on Analog [EDN_on_Analog@email.ednmag.com]
here is a webpage about analogue EDN. The weeks focus is on audio Class D amps. Perhaps this is of interest for some of you.
Rgds
GKU
EDN on Analog [EDN_on_Analog@email.ednmag.com]
Hi, I found one class D article there, it contained nothing but the most basic information useful to someone looking into class d for the very first time.
Could you perhaps provide a more useful link than an email address to the article which you had in mind? Thanks.
Chris
Could you perhaps provide a more useful link than an email address to the article which you had in mind? Thanks.
Chris
Hi Chris,
there are several articles of Class D amps on this page mostly which amp IC from which company you can get as well as some recommendations on PCB design.
But the problem is I do not have any other link, this is a newsletter subscription for EDN professionals. But any body can subsribe to this newsletter.
Rgds
GKU
there are several articles of Class D amps on this page mostly which amp IC from which company you can get as well as some recommendations on PCB design.
But the problem is I do not have any other link, this is a newsletter subscription for EDN professionals. But any body can subsribe to this newsletter.
Rgds
GKU
http://www.diyaudio.com/request/
Went there, but did not see any place to vote for Class D forum???😕
Went there, but did not see any place to vote for Class D forum???😕
- Status
- Not open for further replies.