Use TPA2001 as nice Triangle Osc. :) - diyAudio
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Old 5th September 2012, 05:52 PM   #1
AP2 is offline AP2  Italy
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Default Use TPA2001 as nice Triangle Osc. :)

if you have 5v clean, comp. reduce at only 3.
triangle have 2vP with perfect geometry at 500Khz.
this can be an use...maybe better of this chip.
I have develop this pcb and well tested...in old years. but i not use in my amp's.

..continue
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Old 5th September 2012, 07:43 PM   #2
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Very simple, 90% of pin connected to gnd (this help noise).
I think not need comment.
Maybe..i add rest of components for complete modulator with offset dc control FB.
Ah...This is undocumented use of chips, of course.
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Old 5th September 2012, 07:49 PM   #3
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Aint it a bit of a waste of a IC that is already a complete class d amp in itself though ?
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Old 5th September 2012, 07:54 PM   #4
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Quote:
Originally Posted by Tekko View Post
Aint it a bit of a waste of a IC that is already a complete class d amp in itself though ?
I think not, this is 1w low cost chip but in this way solve a good modulator for big and nice sound amp's. you have new idea for good modulator?
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Old 7th September 2012, 06:40 PM   #5
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Hi,
before FB2 connection, think not need explanation.
very good is use of magic property of FET, since for some reason, this circuit uses a single voltage.

someone can also replace the TPA2001 with another circuit for generating the triangular. (this signal is very critical to the fidelity and efficiency)

continue..
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Last edited by AP2; 7th September 2012 at 06:42 PM.
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Old 8th September 2012, 12:40 AM   #6
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If anyone wants them, I have 25pcs 48-BGA TPA2000 and 50pcs 16-TSSOP. Can't imagine I will ever use them for anything. TPA2000 is the 2W version.
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