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Class D Switching Power Amplifiers and Power D/A conversion

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Old 17th July 2012, 03:24 PM   #2101
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Quote:
Originally Posted by abeteer View Post
Thienchay, nice spacing you got there, it looks like you are using different parts is it a modified version? any plans on sharing the bottom artwork for toner transfer?

Hi all!,
I wonder if anyone of you had a clearer resolution of the pdf file for DIY share, using Detex IRS900, I have the Detex artwork but I don't think it is going to be successful on laser toner transfer, the image is so poor
Hi
This is my PCB file .
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File Type: pdf IRS-900D _ PCB 2 thienchay.pdf (97.0 KB, 998 views)
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Old 17th July 2012, 03:25 PM   #2102
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... and Overlay
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File Type: pdf IRS-900D _ Overlay.pdf (104.2 KB, 806 views)
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Old 17th July 2012, 03:29 PM   #2103
IoNuTx is offline IoNuTx  Romania
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Hey everyone, watch this topic recently and after a week I built myself a Class D amplifier
Amplifier is functional but the problem is that heat the transistors of the differential and constant current generator.Heat to 55-60 degrees.
I used 4x2N5401.
Mention that the amplifier was tested at a voltage 2x45Vcc
Finally amplifier will work on 2x63Vcc
This amp I will use an active subwoofer 300W/4R.
I apologize for linguistic mistakes, do not know English.
Schematic is here.
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File Type: png sch mpli ucd modificaciones v7.png (35.8 KB, 1439 views)
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Old 17th July 2012, 06:16 PM   #2104
stewin is offline stewin  Kenya
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thanks thienchay. what about the schematic?
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Old 17th July 2012, 07:26 PM   #2105
exflaco is offline exflaco  Armenia
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Stewin #2020
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Old 17th July 2012, 08:26 PM   #2106
stewin is offline stewin  Kenya
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thanks
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Old 17th July 2012, 10:30 PM   #2107
Ryssen is offline Ryssen  Sweden
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Anyone willing to make me 2 pcbs from post 2101,as I dont have the equipment.
I will pay for the pcbs.
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Old 18th July 2012, 12:13 AM   #2108
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Quote:
Originally Posted by stewin View Post
thanks thienchay. what about the schematic?
Hi
I not yet had time to do it ,but i think can be confident in this schematic and layout .
I draw the PCB Layout when looking at pictures of them (Detex Audio) , i see they produce a lot , so i think can confident .
This is some pictures of Detex Audio .
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File Type: jpg 0603842372636aa8.jpg (191.8 KB, 1402 views)
File Type: jpg b64a7ca2e699fc34.jpg (215.8 KB, 1244 views)
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Old 18th July 2012, 01:58 AM   #2109
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Default triell 3200 watts ucd pcb with protection

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File Type: jpg DSCN3273 [Desktop Resolution].JPG (258.5 KB, 1045 views)
File Type: jpg DSCN3283 [Desktop Resolution].JPG (182.5 KB, 365 views)
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Old 18th July 2012, 08:29 PM   #2110
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hi andrew and exfiaco
samples of inductor
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