Class D Amp with LM566, LM393 and 2XIRF530

[apexaudio]

D2000 subwoofer amplifier.

 

[andrewlebon]

Hello apexaudio
greetings is it functional circuit
warm regards
Andrew

 

[sima8520]

why not protection?

 

[sima8520]

my new amp
https://www.facebook.com/photo.php?fbid=1027603757302334&set=pcb.1027603943968982&type=3
https://www.facebook.com/photo.php?fbid=1027603927302317&set=pcb.1027603943968982&type=3

 

[apexaudio]

Hello apexaudio
greetings is it functional circuit
warm regards
Andrew

why not protection?

Amp is not tested.
Protection will be add after test.
Regards

 

[andrewlebon]

IGBT class d sub amp

YORKVILLE-LS2100P manual can be downloaded from site

 

[andrewlebon]

http://www.silabs.com/Support Documents/TechnicalDocs/Si824x.pdf

 

[stewin]

D2000 subwoofer amplifier.

hi apex what is the amp switching frequency??

 

[apexaudio]

hi apex what is the amp switching frequency??

40kHz, amp can be use in multiway amplification from 20Hz to 4kHz as bass amp in two, three way active speakers or for subwoofer amp.

 

[stewin]

wow very great when are you going to test it ? please post photos .

 

[lycanlk]

D2000 is an awesome amp! looks like a speaker killing machine. I would like to try it out. Just worried about the inductor.

 

[andrewlebon]

IGBT class d sub amp

Hello
greetings IGBT sub amp by Kartino 300UH is big inductor
warm regards
Andrew

 

[lycanlk]

Hello
greetings IGBT sub amp by Kartino 300UH is big inductor
warm regards
Andrew

Thanks for the resources old friend! But I will wait for D2K as it seems more DIY friendly and of cause I can make it with Mile's best support if I can find the parts

 

[lycanlk]

Dear Mile, I can see the same input phase change in D2K diagram. So do we need to switch inverting/non-inverting input at the input stage? or what do you suggest?
Thanks

 

[andrewlebon]

Hello lycanlk
greetings i have all the parts but no pcb design
warm regards
Andrew

 

[lycanlk]

Hello lycanlk
greetings i have all the parts but no pcb design
warm regards
Andrew

Well, its very tricky to design boards for these amplifiers. I have failed a couple of times. There are a lot to learn yet.

 

[deo]

The D2000 IGBT works only at 1kHz.Much better is hgtg30n60a4(D) at 40-50 kHz.We have great attention to dead time.

 

[stewin]

What parameters of an igbt does one look for if you want to use it in class d?? Irg4pc50 are rated 40khz

 

[deo]

Freqvency/Ic.Irg4pc50S it is only for low freqvency(1khz).Irgp4pc50U or W termination it is for 40-150khz.The last point is very important.It has seen the datasheet for relationship freqvency vs Ic.

 

[andrewlebon]

Seems no oneS interested in D2000 any pcb designers willing to help