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A Universal Shunt Regulator for Audio Applications
https://refsnregs.waltjung.org/UnivReg_122714.pdf
This document describes a Universal Shunt Voltage Regulator , as optimized for positive and negative audio power supply use. It includes a high performance current source, adjustable up to 100mA of current. In a given application, a common form of shunt voltage regulator circuit is used for both POSitive and NEGative outputs.
Shunt or Not - Looking for the Ultimate Audio Voltage ...
https://audioxpress.com/article/shunt-or-not-looking-for-the-ultimate-audio-voltage-regulator
The simple shunt regulator shown in Fig. 3 (top) consists of two transistors, and because of the gain factor, it actively decreases ripple and also noise. You will notice at once the much lower noise of this regulator. Zener diode Vz = 22 gives about 23-24V, and ideal PSU voltage should be 6-7V above shunt voltage (regulated voltage).
Shunt voltage regulator | Crazy Audio
http://www.crazy-audio.com/projects/shunt-voltage-regulator/
high-end shunt regulator for audio devices created by the journal “Klang + Ton” capable for up to 400 mA based on the precision voltage source LM431 PCB available in our shop This PCB has been designed after a circuit published in the German DIY magazine “Klang + Ton”. The quiescent current is provided by a LM317 as a constant current source.
Shunt Regulator - TentLabs
https://www.tentlabs.com/Components/Shuntcomp/index.html
Tentlabs shunt regulators are designed to upgrade power supplies of both analog and digital circuits, mostly found in CD/DVD players, DACs and similar audio equipment. Substituting, or adding these regulators enhances the sound quality in terms of transparency and resolution, at reasonable price. Connections in general are easilly made.
Shunt Regulator - TentLabs
http://www.tentlabs.com/Components/cdupgrade/shunt/index.html
Tentlabs shunt regulators are designed to upgrade power supplies of both analog and digital circuits, mostly found in CD/DVD players, DACs and similar audio equipment. Substituting, or adding these regulators enhances the sound quality in terms of transparency and resolution, at reasonable price. Connections in general are easilly made.
High-Voltage Shunt Regulators - Tube CAD
https://www.tubecad.com/2021/01/blog0527.htm
Another way of looking at the shunt and series regulator is that the series regulator is effectively a cascode circuit without a load resistor. While the series regulator fixes the B+ voltage the audio circuit sees, the regulator also passes along all the current-flow variation to the unregulated portion of the power supply.
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