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Class D Switching Power Amplifiers and Power D/A conversion

Info kindly requested on the UcD 400 schematic.
Info kindly requested on the UcD 400 schematic.
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Old 6th October 2006, 06:28 PM   #1
beppe61 is offline beppe61  Italy
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Default Info kindly requested on the UcD 400 schematic.

Dear Friends,

I am figuring out the actual schematic of the UcD 400 module.
I know there is an op-amp at the input follow by a "modulator" or something like that that then drives the output devices?
I have the following doubt: is the op-amp providing all the voltage gain or is a buffer?
I wonder if it could be possible to drive the modulator directly for single ended operation by-passing the input op-amp.
Thank you to everyone will redirect me to some useful links about the real schematic.

Kind regards,

beppe
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Old 6th October 2006, 07:16 PM   #2
classd4sure is offline classd4sure  Canada
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http://www.hypex.nl/docs/gainappnote.pdf
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Old 6th October 2006, 07:26 PM   #3
beppe61 is offline beppe61  Italy
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Location: torino
Thanks again Mr Chris.
I will study the application note in the hope of understanding better the working principle.
Kind regards,

beppe
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