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Old 19th January 2013, 07:24 AM   #3231
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Hadighorbani using Sprint Layout
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Old 19th January 2013, 08:59 AM   #3232
exflaco is offline exflaco  Armenia
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Its free Sprint-Layout pcb file donwload and open ,nex print layer you desire
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Old 19th January 2013, 09:11 AM   #3233
akraj is offline akraj  Bangladesh
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Quote:
Originally Posted by exflaco View Post
Its free Sprint-Layout pcb file donwload and open ,nex print layer you desire
Hi Exflaco: which one is more power ful, IRS1500, IRS3000, or aud600 (Manoj amp)?

Thanks
Raj
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Old 19th January 2013, 09:21 AM   #3234
akraj is offline akraj  Bangladesh
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Quote:
Originally Posted by akraj View Post
Hi Manoj: I think my wiring is as per your diagram/instruction. Attacing a picture for better understanding, is it okay.

Thanks
Raj
Hi Manoj:

You may see from the attached picture that the volume wiring is okay as per diagram. Still no sign of luck, finally given audio input to pin 1 (by passed tl072) now the sound good, no HF noise. I changed couple of IC's, same result.

I would like to increase rail voltage, please let me know which part need to be changed and what is the threshold voltage limit of this design?

Thanks
Raj
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Old 19th January 2013, 09:44 AM   #3235
IRSound is offline IRSound  Germany
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guys...

anyone have schematic of irs-1500d ?

Regards
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Old 19th January 2013, 10:22 AM   #3236
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Hi exflaco
i was creat and fix the parts for IRS900D
i was used IRF640N with 1K ohm OSC resistor
what is the value for IRF640n gate resistor ?
i want to use T106-2
how much the value of out put filter ?
thanks
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Old 19th January 2013, 10:22 AM   #3237
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Quote:
Originally Posted by IRSound View Post
guys...

anyone have schematic of irs-1500d ?

Regards
thanks IRSound
i need too
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Old 19th January 2013, 11:01 AM   #3238
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thanks exflaco

Click the image to open in full size.

Click the image to open in full size.
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Old 19th January 2013, 05:57 PM   #3239
exflaco is offline exflaco  Armenia
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Location: Santa Fe
For the diyers friends.
These 3 class d amps IRS (900-1500-3000) the same topologie and schematics
the 1500-3000 ad OCP (overcurrent protecttion) personally prefer irs1500
with biger vmos like 90n20 (90a200v) or better irfp4768(93a250v)and work fine
2ohms load.
Depend the load and the +-vcc inductor coul use 22-50uh no problem.
look the little secrets down the pcb
A smd little 100nf decoupling and use pcb 3000 only one vmos per side.
Other mistake its the 12v auxiliary better 1,5-2a (use two paralel 7812 or lm317)
one 7812 work in irs900 only
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Old 19th January 2013, 06:19 PM   #3240
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Hi Hadighorbani,

What diode are you using for the gates? 1n4148 is sufficient.

Sorry I cannot share the layout yet for my all in one class D. Please understand.

Regards,
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