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Class D Switching Power Amplifiers and Power D/A conversion

System_D_MD,  Class D is like chocolate
System_D_MD,  Class D is like chocolate
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Old 10th November 2012, 04:47 PM   #81
dimitri is offline dimitri  United States
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Quote:
I found a link which let's you look into the book from Lunze. ... Page 405 example 8.9, bode diagram on page 406.
Thank you for providing the link. With respect to class-d amplifier design please see AN9525
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Old 10th November 2012, 08:31 PM   #82
ChocoHolic is offline ChocoHolic  Germany
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What is the clou about the AN9525?
It is elaborating about a pre filter feedback design, so they do no need to handle the phase step of the output filter.
Loop design of AN9525 is following the traditional way.
Where do you see an overlap to our discussion?
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Old 11th November 2012, 12:11 AM   #83
ChocoHolic is offline ChocoHolic  Germany
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On request during a side discussion and for better understanding:
Please be aware the bode plots (post#64) and Nyquist plots (#post75), where derived from the design according post#11 basically.
R32, C8 are showing a simplified version of the real shaping-PI-network.
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Old 19th November 2012, 07:30 PM   #84
phase_accurate is offline phase_accurate
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Hi Markus

Congratulations on that well thought-out design.

Regards

Charles
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