Class D Design Issues

[fatihcol]

hi;

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

sorry i'm little english

good luck

[Ouroboros]

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

[exorcista]

"DWM3640NHV_V30"
replaced the other problem I ic overheat njm4556 too!

[fatihcol]

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

njm4556 (u3) is hot because triangle jenerator.

[exorcista]

njm4556 is the pre dell'RCA is too overheat even after 10 seconds from what may depend

[fatihcol]

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

[mhouston]

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?

[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!

[mhouston]

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?

[Pashley]

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".