My class D amp

use PC817 for isolate micro from your DC detector
optocupler can save you micro
be cerful my friend
do you work with micro before ?


Hi Hadi:

Thanks for your advice. I'm using voltage divider and zener, hope they are enough to keep the input level within the micocontroller's acceptable level.

I am trying to start again with Micro, had few work experience 10years ago with MP LAB. ;)

Thanks
Raj
 
Hi Guys!
have anybody latest schematic and PCB with description? How about supply voltage? from my estimation +/-95VDC should give us about 850-900Watts @4R, but Manoj said that it should be more. what changes should be made to drive it at this voltage level? It is OK to build it in full bridge version and drive 4R load? or it should be made in 2 pcs and then bridged? Which part values vary depending on supply?
 
have anybody latest schematic and PCB with description? How about supply voltage? from my estimation +/-95VDC should give us about 850-900Watts @4R, but Manoj said that it should be more. what changes should be made to drive it at this voltage level? It is OK to build it in full bridge version and drive 4R load? or it should be made in 2 pcs and then bridged? Which part values vary depending on supply?

Hi,
for +/-95V supply AUD600 will give you 1130W@4R True RMS OUTPUT and FTC RMS rating is 2250W@4R,you should connect 2800W/3000W@4R RMS speaker otherwise your speaker coil will heat and its efficiency will be lost.

Regards
MANOJ
 
Hi ALL,

My AUD600 Rev 3.0.1 Power Board Shematic:):):):):)

Regards
MANOJ
 

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i can have:
IXFH100N25P 5,47 EUR/1 pcs exl. VAT, min. 30 pcs in 2-3 weeks

IXTH76N25T 2,68 EUR/1 pcs exl. VAT, min. 30 pcs in 2-3 weeks

but this is not cost-effective i think, maybe its easier to use two pairs?

FDA59n25 cost is about 1,25 EUR including VAT. and they are widely avaible from 1 PC. what do you think about it?

i Have another question.
Power board is unconventional, and somebody would like to use SMPS for this amp, what would be difference between this powerboard in that option?
 
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best class d ever made ... :)

thank u sir manoj for ur amp. very clear and good sound .. 22uh inductor @+/-63vdc .irfp250n no heat sink fets on 55degree .
can need any changes for +/-140 vdc .??? i n not useing 220uh for aux 12v.
 

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