Hello apexaudio
greetings is it functional circuit
warm regards
Andrew
why not protection?
Amp is not tested.
Protection will be add after test.
Regards
D2000 subwoofer amplifier.
hi apex what is the amp switching frequency??
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.
D2000 is an awesome amp! looks like a speaker killing machine. I would like to try it out. Just worried about the inductor.
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 🙂
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.
The D2000 IGBT works only at 1kHz.Much better is hgtg30n60a4(D) at 40-50 kHz.We have great attention to dead time.
What parameters of an igbt does one look for if you want to use it in class d?? Irg4pc50 are rated 40khz
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.
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