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-   -   Ir2000 (http://www.diyaudio.com/forums/class-d/157462-ir2000.html)

ionutzxpo 28th December 2009 12:36 PM

Ir2000
 
1 Attachment(s)
hello i found this schematic and i don't know if it's ok..

stoc005 28th December 2009 01:32 PM

Looks OK. Go to the IR website and you can get complete schematics from them. Note that output MOSfet PNs are not given. I do not know why there are 3 paralleled devices - other than it must be fairly high power. Usually one fet is enough. No feedback in the analog domain either. No offset adjust - which may be OK.

odnaizutra 28th December 2009 04:21 PM

Quote:

Originally Posted by stoc005 (Post 2026744)
Looks OK. Go to the IR website and you can get complete schematics from them. Note that output MOSfet PNs are not given. I do not know why there are 3 paralleled devices - other than it must be fairly high power. Usually one fet is enough. No feedback in the analog domain either. No offset adjust - which may be OK.

The schematics is basically the same of the topic 6000watts using 2092.The big difference is the use of tc4420 instead of pnp npn buffer stage.I think it is intended to be used as low voltage ,high current and low impedance.Again 4227 will be a good option.But imho,i would not change npn pnp buffer.Its cheaper and much less space occuppied.


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