Electronics > Projects, Designs, and Technical Stuff
What is "floated" linear voltage regulator?
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001:

--- Quote from: Wolfgang on November 21, 2018, 12:21:58 am ---Hi,

thats easy. A floating regulator is a regulator which has no direct ground connection.


--- End quote ---

Thanx
Can You comment this eastern europe schematic?
precaud:

--- Quote from: Wolfgang on November 21, 2018, 12:21:58 am ---Floating: LM317: Input-Output-Adjust. This regulator never sees "ground", it floats.

--- End quote ---

So how does a floating regulator create/have a low impedance to ground if it never references to it?
001:

--- Quote from: precaud on November 21, 2018, 02:37:27 am ---
--- Quote from: Wolfgang on November 21, 2018, 12:21:58 am ---Floating: LM317: Input-Output-Adjust. This regulator never sees "ground", it floats.

--- End quote ---

So how does a floating regulator create/have a low impedance to ground if it never references to it?

--- End quote ---

I don`t understand it too
xavier60:

--- Quote from: 001 on November 21, 2018, 02:29:21 am ---
--- Quote from: Wolfgang on November 21, 2018, 12:21:58 am ---Hi,

thats easy. A floating regulator is a regulator which has no direct ground connection.


--- End quote ---

Thanx
Can You comment this eastern europe schematic?


--- End quote ---
It needs to be mentioned that this design uses the mains switch and transformer's primary winding to discharge the large capacitor.
Very hazardous!
xavier60:

--- Quote from: precaud on November 21, 2018, 02:37:27 am ---
--- Quote from: Wolfgang on November 21, 2018, 12:21:58 am ---Floating: LM317: Input-Output-Adjust. This regulator never sees "ground", it floats.

--- End quote ---

So how does a floating regulator create/have a low impedance to ground if it never references to it?

--- End quote ---
There will always be a feedback divider to sense the voltage of the - output terminal with respect to the + output terminal.
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