Hi, Zeljko,
sorry for not answering, i've been busy these days. I'd send you some schs tomorrow, but where to?
it replies to the trial to send you e-mail,
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Regards, Alex.
sorry for not answering, i've been busy these days. I'd send you some schs tomorrow, but where to?
it replies to the trial to send you e-mail,
'Sorry! That user has specified that they do not wish to receive emails through this board. If you still wish to send an email to this user, please contact the administrator and they may be able to help.'
Regards, Alex.
Alex, do you have any amp schematics? I would be interested! I'm good for the PS. Thanks 2pist@comcast.dot.net (remove the .dot.)
Thanks Steve, that looks like the mutha of all amps. Is that 32 output resistors I see attached to that thing?
2pist, actually I meant SMPS schematics, not amplifiers... If you need an amplifier like 1kW for subwoofer, I would recommend to make D-class circuit instead of AB or even G-class...
The good prototype to start with is here,
http://www.irf.com/technical-info/refdesigns/iraudamp1.pdf
You can find a topic about it at 'Class D' forum here.
I also try to have more power from this circuit, like over 500W at 2ohm even 1ohm load. pcb already made, start tweaking the other day as soon as get all the parts. The prototype promises not bad quality.
Concerning that MOSFET schematic above, that was a popular one in Japanese amps in late 1980's. I tried one of them (just 2*100W@2ohm), got THD under 0,02% at 20kHz, looks like not bad. Ant it's reliable if made good.
The good prototype to start with is here,
http://www.irf.com/technical-info/refdesigns/iraudamp1.pdf
You can find a topic about it at 'Class D' forum here.
I also try to have more power from this circuit, like over 500W at 2ohm even 1ohm load. pcb already made, start tweaking the other day as soon as get all the parts. The prototype promises not bad quality.
Concerning that MOSFET schematic above, that was a popular one in Japanese amps in late 1980's. I tried one of them (just 2*100W@2ohm), got THD under 0,02% at 20kHz, looks like not bad. Ant it's reliable if made good.
Mutha of all amps.
The schematic is out of Elector magazine of about 1986. I bought an unfinished kit on Ebay. The boards have "EPS" on them so I think they are early Elliot Sound pieces. All the parts are on the boards, the chassis is an UGLY stamped steel thing. I was going to finish the project but, have not had the time. For what I paid, it was worth all the new parts I got. The amp was designed as a dual mono design with seperate power supplies on the drivers. Hence, I have four toroid transformers, eight big caps, and 24 new Hitachi Vmos output devices.
Every so often G-D throws me a bone!
The schematic is out of Elector magazine of about 1986. I bought an unfinished kit on Ebay. The boards have "EPS" on them so I think they are early Elliot Sound pieces. All the parts are on the boards, the chassis is an UGLY stamped steel thing. I was going to finish the project but, have not had the time. For what I paid, it was worth all the new parts I got. The amp was designed as a dual mono design with seperate power supplies on the drivers. Hence, I have four toroid transformers, eight big caps, and 24 new Hitachi Vmos output devices.
Every so often G-D throws me a bone!
Re: Hi, Zeljko,
Hi,
Sorry for that, my mistake!
I tried to corect that but I can't find where, so here is my email adress: zemihaji@globalnet.hr
I will replay you from another, mail adress.
Tnx
Alme said:
Hi,
Sorry for that, my mistake!
I tried to corect that but I can't find where, so here is my email adress: zemihaji@globalnet.hr
I will replay you from another, mail adress.
Tnx
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