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Old 29th November 2014, 02:51 AM   #1
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Default Shunt current regulator

Hello!

Does anyone have schema of shunt regulator for DACs chip. For example for AVCC lines of ES9018 chip. Main feature of this regulator is that it must has extremely low impedance. It is good choice tentlabs shunt regulator Shunt Regulator . Impedance is 10 m-Ohms over total bandwidth.
This is some photos of tentlabs shunt

Tentlabs shunt 1.jpeg

May be some Salas regulator schema's will be ok (but those schema's for high current power and high voltage usually). Could anyone suggest schema?
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Old 29th November 2014, 11:00 AM   #2
AndrewT is offline AndrewT  Scotland
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All Shunt Regulators must have a pre-selected maximum current.
All Shunt Regulators will have a Vdrop that is much higher than an LDO type regulator.
All Shunt Regulators will waste some current that does not pass through the load.

The Salas and the Tent will be no different in those respects.
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Old 29th November 2014, 11:24 AM   #3
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Quote:
Originally Posted by AndrewT View Post
All Shunt Regulators must have a pre-selected maximum current.
All Shunt Regulators will have a Vdrop that is much higher than an LDO type regulator.
All Shunt Regulators will waste some current that does not pass through the load.

The Salas and the Tent will be no different in those respects.
Salas regulators too much high current (those in Group Buy). For AVCC of ES9018 chip needed only 100-150 mA 3.3V and 1.2V. And the main feature for power of ES9018 is low impedance on bandwidth from 10Hz to 50KHz. Does Salas regulator has low impedance (10m-Ohm or so) ? And such low impedance must be on all sounds bandwidth (as I wrote 10Hz - 50KHz).
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