Thule Audio's GND Management by Integrated Amplifier with RC - who can explain - diyAudio
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Old 10th February 2010, 06:04 PM   #1
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Default Thule Audio's GND Management by Integrated Amplifier with RC - who can explain

There are two grounds: Analog GND and digital GND (D-GND)
The kind of creation I don't understand and I have never seen by others.

At first look it shows like a symmetrical supply voltage about +/-5VDC.
But there is only one voltage: +5Vdig.

Because no additional secundary winding for independent creating of the +5Vdig is in use, this way was choiced from Anders Thule.
The neg regulator drives a bidirectional diode (normally anti paralleling 1N4148) and creates 0V7DC refer to GND (A-GND). But the actually GND wire for the neg regulator goes here to +5Vdig !!
What about this idea from Anders Thule?

Who can give me a commonly circuit describtion ?
Attached Files
File Type: pdf Thule Audio Bal-ONE GND Man.ckt.pdf (9.0 KB, 53 views)

Last edited by tiefbassuebertr; 10th February 2010 at 06:14 PM.
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Old 10th February 2010, 06:33 PM   #2
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Default Thule Audio's Universal Inrush Current Limiter for their Amplifiers - very special?

incorrect place !! go to new thread
Thule Audio's Universal Inrush Current Limiter for their Amplifiers - very special?
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File Type: pdf Thule Audio Inrush current Lim.pdf (13.5 KB, 32 views)

Last edited by tiefbassuebertr; 10th February 2010 at 06:57 PM.
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Old 10th February 2010, 10:03 PM   #3
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where is going the statement from "Ultima Thule" reading at 7.56 ?
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