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Class D Switching Power Amplifiers and Power D/A conversion

Power supplies examples
Power supplies examples
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Old 19th November 2007, 09:44 PM   #1
maverick_123 is offline maverick_123  United States
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Join Date: Sep 2007
Default Power supplies examples

hi everyone,

I'am doing a Class D project and interested to see examples on the power supply examples. I'am designing for the mosfets.
I'am thinking about deliever about +/- 50V to get around 100-150
Watts out.

Thanks again.
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Old 20th November 2007, 06:36 AM   #2
luka is offline luka  Slovenia
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Join Date: Sep 2005
Location: in Slovenia :)
Power supplies examples

Would be nice if you would post this in Power Supply section, Hope that this thread will be move there...

So about your question... First where will you use your amp (car, or home...)? If car then you will probably go with push-pull, if for home then you have flyback, halfbride, forward converter... lot of them.
home page @ http://www.classdaudio.tk/ @ 24/7 all year long
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Old 20th November 2007, 02:08 PM   #3
KOON3876 is offline KOON3876
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Join Date: Nov 2006

Hi also I'm thinking to try analog discrete power supply to full digital amplifier.
there are "positive side" schematic and inverting PNP->NPN, NPN->PNP can make "negative side". Power Tr can be changed to MOSFET.

when source voltage = 55V and output voltage=50V, output current = 3A, (150W) MOSFET power loss = 15W. so you need large heat sink.
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