Hi all,
This is my first approach on class D amp, I'm glad I have found a simple project in which used components I already had. I may put them in good use by constructing this amp, however I am being confused, it seems that the schematic that Norazmi posted was different than the projects of Andrew, rezamir and irvynejay which to my knowledge was being discussed in this thread.. and the smps link do not work for non-members (posted by Andrew).
I definitely wanted to construct this project, will someone share the construction files..
Thanks & Regards!
This is my first approach on class D amp, I'm glad I have found a simple project in which used components I already had. I may put them in good use by constructing this amp, however I am being confused, it seems that the schematic that Norazmi posted was different than the projects of Andrew, rezamir and irvynejay which to my knowledge was being discussed in this thread.. and the smps link do not work for non-members (posted by Andrew).
I definitely wanted to construct this project, will someone share the construction files..
Thanks & Regards!
there is no different, Irvy use 2 pcb together and make it stereo. adrew made 1 pcb for mono and maybe he will make new one to have it stereo. rezamir just draw hes own pcb but still use same schema that i`ve posted. as u always make ur own as u wish no problem.
abeteer u can use from original i posted and it should work without problem.
abeteer u can use from original i posted and it should work without problem.
norazmi,
thanks, but I don't see BD139/140 in the schematic there are 4 pairs of MPSA and a couple of BCs, was the pre-driver MPSA replaced by 2Ns? and the combined MPSA/BCs drivers replaced by BDs? Also what are the parts value with DNP indicated...it may be of help on what diameter of torus will I need and how many turns of wire.
I may be asking too much please consider.
Cheers!
thanks, but I don't see BD139/140 in the schematic there are 4 pairs of MPSA and a couple of BCs, was the pre-driver MPSA replaced by 2Ns? and the combined MPSA/BCs drivers replaced by BDs? Also what are the parts value with DNP indicated...it may be of help on what diameter of torus will I need and how many turns of wire.
I may be asking too much please consider.
Cheers!
thank you norazmi, I'll get back to you later on, in the meantime I will be completing the parts and do the etching job..I did try to dis-assemble one EI33 taken from a discarded PSU, unfortunately the E was split into two parts, it seems that these small ferrite cored transformer is very fragile.
Ciao!
Ciao!
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