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Class D Switching Power Amplifiers and Power D/A conversion

+/-12V 5A, 100W filterless class D
+/-12V 5A, 100W filterless class D
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Old 13th September 2010, 03:04 PM   #21
newvirus2008 is offline newvirus2008  India
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Join Date: Jun 2008
Location: India
But tangmonster, we see that the 100W power comes at nearly 100% modulation index
So, i believe I need a bigger power supply.

I would like to build this amp for a JBL CS1215, rated at 275W RMS. Should I simply upgrade the power supply, adding a level shift between the modulator and driver stages or must there be a change in the feedback loop as well?

Suggestions please.....

Last edited by newvirus2008; 13th September 2010 at 03:21 PM.
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