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100w preamp power supply design
100w preamp power supply design
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Old 9th January 2010, 07:06 AM   #1
authlxl is offline authlxl  China
SINEWAVE ELECTRONICS CO.,LTD
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Default 100w preamp atx switch power supply design

Because i have project for preamp,I designed a atx switch power supply ,works stable,low ripple,low cost。
Specification here:
INPUT:AC220V/50Hz OR 60Hz
OUTPUT:+5V/1A,+15V1A,-15V1A ,+24V/3A
DIMENSION:150mm(length)*100mm(width)*40mm(heigth)

Standby power supply:+5V/1A
Main DC/DC controlled by +5v,easy to use.
+24V have 3A current deliver,It can be use for class d amp,like TI tpa3106 etc,
I upload schematic ,If anybody needed,send me mail,I can tell you detial for this SMPS.
Bom cost no more than 10USD.
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Last edited by authlxl; 9th January 2010 at 07:22 AM. Reason: repair
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Old 9th January 2010, 07:10 AM   #2
authlxl is offline authlxl  China
SINEWAVE ELECTRONICS CO.,LTD
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Schematic here
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File Type: zip ATX100WTL494.zip (141.1 KB, 177 views)
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Old 9th January 2010, 01:11 PM   #3
m-tech is offline m-tech  Serbia
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Join Date: Feb 2006
Location: Belgrade
What is VBAK ?
Good project. But transformers and output coils spec's are not mentioned. It's useless without them.
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Old 9th January 2010, 05:25 PM   #4
authlxl is offline authlxl  China
SINEWAVE ELECTRONICS CO.,LTD
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Join Date: Jun 2006
Location: CHINA
100w preamp power supply design Send a message via MSN to authlxl
Oh,sorry,Vbak conect Vcc,The ferrite transformer drawing is so complex,It is diffcuilt to control parameter when manufacture,I can help you to get it from big company.highest quality,mass product.three transformer a set need 3USD.
If you need transformer drawing for you product,please connect me.
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Old 13th January 2010, 02:19 AM   #5
rajudp is offline rajudp  India
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Location: Kerala
Default 100w smps

i am interested, please give the transformer specifications
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Old 3rd January 2015, 01:36 PM   #6
RobFreak is offline RobFreak  Denmark
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Any status on this SMPS?
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