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Old 28th July 2008, 02:20 PM   #31
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Default DWM3640NHV_V30

hi;

in board u1,u2 = ir21844s
u3 =tl072
u4 =lm211
d1,d3=12volt zener

sorry i'm little english

good luck
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Old 28th July 2008, 02:26 PM   #32
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Default Re: UcD Amp Design paper

Quote:
Originally posted by arif__anwar
would anyone be able to suggest a UcD design paper with a basic design and calculations so i can figure out how the thing works??..any help would be great

The best place to start is Bruno's original paper to the AES.
A copy is available online at:
www.ciaudio.com/ucd_aes.pdf
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Old 28th July 2008, 09:07 PM   #33
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"DWM3640NHV_V30"
replaced the other problem I ic overheat njm4556 too!
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Old 29th July 2008, 09:05 AM   #34
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Default 3s-tec amp

Quote:
Originally posted by exorcista
"DWM3640NHV_V30"
replaced the other problem I ic overheat njm4556 too!

njm4556 (u3) is hot because triangle jenerator.
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Old 29th July 2008, 11:22 AM   #35
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njm4556 is the pre dell'RCA is too overheat even after 10 seconds from what may depend
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Old 1st August 2008, 10:00 AM   #36
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Default DWM3640NHV_V30

Quote:
Originally posted by exorcista
njm4556 is the pre dell'RCA is too overheat even after 10 seconds from what may depend

i' m repair today. g-z 5000spl same your amp

amp's blow ir21844s an 360lc
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Old 18th August 2008, 12:46 PM   #37
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Default Class D amps - chips/modules

Is there a single Class D chip or module I can purchase, commercially, to make a complete amp from?

If so, from a musical point of view, what is the best chip or module?
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Old 26th August 2008, 11:21 PM   #38
Jaimo is offline Jaimo  Canada
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Default Tripath Chips

check out 41Hz.com

I can't comment on the quality but I plan to purchase a kit as soon as I figure out what suits my needs best.

Cheers!
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Old 27th August 2008, 04:43 AM   #39
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Default Re: Tripath Chips

Quote:
Originally posted by Jaimo
check out 41Hz.com

I can't comment on the quality but I plan to purchase a kit as soon as I figure out what suits my needs best.

Cheers!
I thought the Tripath was Class T?
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Old 24th September 2008, 12:57 AM   #40
Pashley is offline Pashley  Canada
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Quote:
Originally posted by Groman
Do you know any ebook or web page of class D amplifier for beginners?
There's one at http://sound.westhost.com/articles/pwm.htm. It was written by someone from Coldamp, a vendor of class-D amp modules.

For another module vendor's take, go to http://www.hypex.nl/ and click on "technology".
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