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| Publikuota: |
2004-01-10 21:10 |
| Tematika: |
Garso technika |
| Tipas: |
Sudėtinga |
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| Ši schema pateikta tik dėl smalsumo, nes vargu ar kas darys tokio galingumo stiprintuvą. |
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Iš viso rasta:
7 (1–7) |
[1]
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| Mantas |
2010-06-01 13:52 |
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| Giga, ar galetum atsiusti to stiprintuvo nuptraukas i skype mantasgerietis? Nes tikrai smalsu pamatyti kaip jis atrodo ir koks jo dydis |
| Atsakymai (0) |
| Rysiek |
2009-06-18 20:09 |
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| 20kW!nezinau ka su tokiu daryciau jeigu tureciau |
| Atsakymai (0) |
| DDT |
2008-08-13 20:19 |
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cia yra nukopijuotas glen kleinschmidt 20kw projekto fragmentas, sitas stiprekas atiduoda apie 5kw prie 1ohm, sujungus tokius 4(subridzinus) turetu gautis puikus 2x10kw t.y. 20kw stereo stiprintuvas : "A few clarifications from the designer!
G’day!
I was just browsing the web and I came across this by fluke.
I see that a few clarifications are in order, viz my amplifier design:
1) The design is class AB with class H supply rail switching. The supply rail switching significantly improves the efficiency and means that far fewer transistor pairs are required the output stage for a given power output.
I have drawn a diagram to demonstrate the principle here:
http://www.picknowl.com.au/homepages/glenk/railstep.j pg
2) Alme is entirely correct; the design is indeed rated at 5kW into 1 ohm. This was the design specification I based the transistor load line calculations on.
I specifically wrote a program in visual basic to plot the load lines with the class H rail switching.
Here is the load line for 5kW into 1 ohm reactive (45deg):
http://www.picknowl.com.au/homepages/glenk/loadlin e.jpg
The green line is the SOA curve for the parallel connected transistor pairs – as can be seen, there is plenty of reserve. This design is not a joke or a fantasy!
3) The reason for the 20kW title is that this design is part of a 20kW project, in which I intend to use 4 of these 5kW ‘modules’, bridge configuration, to make a stereo amplifier rated at 10kWrms per channel into 2 ohms.
4) This beast is not to be powered from a GPO, but from a 24V lead acid battery bank with switch mode power supplies providing the required rail voltages.
5) Yes! I do intend to finish building it, but I’m not giving any promises as to when it will be finished or when I’ll get the webpage once dedicated to the project up and running again – I have to finish renovating my house and fitting out my electronics workshop first.
I hope this clears a bit of confusion !
Cheers,
Glen Kleinschmidt."
http://www.diyaudio.com/forums/showthread/ t-56405.html |
| Atsakymai (0) |
| kosmius |
2008-03-23 20:05 |
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| to giga: impulsinius maitinimo saltinius? kaip tu juos perdariai? kiek savikaina stiprintuvo isejo? |
| Atsakymai (0) |
| Zukas |
2007-05-15 14:24 |
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| O kiek toks stipriakas kainuoja pasigamint ~?Ir beto gal kas nors jau turi PCB?Jei ka rasykit i skype Vabalas_ltu Nick:Zukas arba@: artas80@vkt.lt |
| Atsakymai (0) |
| giga |
2007-05-13 19:53 |
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| pgaminau. suderinau, naudojau 3*450w kompo maitinimo saltinius, iskepiau draugo kolonkes ir ismusiau chtos saugiklius, bet man patiko ir as ji vis dar turiu. gal kas zinot is kur gauti jam kolonkes ? |
| Atsakymai (0) |
| assembled |
2006-11-27 16:46 |
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| Puikus H klasės stiprintuvo pavyzdys! |
| Atsakymai (0) |
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Iš viso rasta:
7 (1–7) |
[1]
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