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Class D Switching Power Amplifiers and Power D/A conversion

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Old 12th July 2009, 07:43 PM   #21
fredos is offline fredos  Canada
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Got fews, all are impecable! Spec right, very well built.
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Old 12th July 2009, 09:59 PM   #22
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Originally posted by fredos
Got fews, all are impecable! Spec right, very well built.
Nice to hear!!! I'm thinking of ordering a few from them that will work with +/-74V rails.

They seem like the only reasonable option for pre-built class-d modules with rails that high.
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Old 12th July 2009, 10:45 PM   #23
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I think the maximum rails for their products are 60V, but I could be wrong...

http://classdaudio.com/index.php?mai...&products_id=1

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Old 13th July 2009, 12:20 AM   #24
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This is from one of their eb*y listings.......

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Also available in different configurations from 25 Watt to 250 Watt per channel 8 Ohm with 25 Volt to 75 Volt power supplie configurations
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Old 13th July 2009, 12:33 AM   #25
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This is from one of their eb*y listings.......
Great - thanks for the information!
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Old 8th October 2009, 10:39 PM   #26
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Looks like the blue circled capacitors are the input caps in the T.I. chip....

Click the image to open in full size.

Last edited by Mark Allen; 8th October 2009 at 10:42 PM.
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Old 12th October 2009, 07:57 PM   #27
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Originally Posted by exurbia View Post
MOER
Thanks for the info. I've just had a look at the datasheet, IR spec the device as a half bridge. Does this mean if two devices are bridged they then become a full bridge ? With all of the attendant pluses ?
Yes, our amps are 2 half bridges and can be bridged... with all of the attendant pluses. Only change one jumper for full bridge mode with this model of our Class D amp.
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Old 12th October 2009, 07:59 PM   #28
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Originally Posted by AndrewT View Post
there's a couple of threads on these ClassAB amplifiers.

The company ClassD Audio started by designing and making ClassD amps.
They have branched out into these ClassAB designs.
We are Class D Audio... based in the USA, and we only make Class D Amps... not class AB. I believe you are thinking of another company based in the UK.
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