Did you read it by youself?I guess not.
I have ears and my head is clear
Sorry, wrong link
Should be here:
http://www.diyaudio.com/forums/class-d/108343-class-d-behavior-clipping.html
My words copied:
If it bothers you to much , make softclipping in your amps - it's so easy.......
No I use a discrete power comparator for simplicity and to need only one supply,
I have this schematic who do stop when sound is off..
Attachments
UCD can get low HD when properly designed, multipole settings with low pass filters, ucd is self oscillating, best is design d amp who has without feedback already lwo HD, that is challencing but maybe a good step up for high end where there is not much yet.
wow thank you will post some sims soon.
I have a question about the Class D for subwoofer application. Do they have stability issues when either load is not connected or for extreme low frequencies?
The fundamental reason why i want to consider the full bridge and single supply is to avoid the bus pumping effect and i believe this circuit is also with post feedback so the DF could be more.
Did anyone tried this UCD with subwoofers with extreme usage in like PA with good results? I want to drive 21LW1400 from eighteen sound with excellent grip.
I did have the same, and I have the lib and sub, here she are, maybe you can find out, ltspice is sometimes difficult.
you can use .include IR21XX.lib but I did see I have a error with pins.
I believe full bridge do also not have problems with bus pumping.
here some info.
http://www.irf.com/product-info/audio/classdtutorial606.pdf
In class D clipping sounds worse.
As I told before that during momentary clipping for self oscillating class D, PWM will stop for a moment and only pure DC will flow to speaker. And after clipping, it needs time to restart again the PWM. This event makes clipping in class D is worse than class AB.
It seems you don't have experience at all.
Experience is your privilege. Nobody else has it, unless he agrees with you.
ClassD clipping sound worse only if you make it wrong. If you do it right it returns to normal operation immediately after clipping. I also fallen to this error in my first big classD amp, but I didn't accept it, found the problem and corrected it.
thanks dimonis for sharing .nice layout .please post schematic of the project.
by the way which topology do you use nowadays of your class d amps??
Probably the input polarity of comparator. The polarity definition changes when you use the other output.