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

--- Quote from: ArthurDent on November 21, 2018, 04:26:01 am ---"So how does a floating regulator create/have a low impedance to ground if it never references to it?"

There is a difference between impedance and resistance. A supply's output could have an extremely high resistance to ground at D.C. but with a capacitor from the output to ground could basically be a short circuit at R.F.. A lot of supplies I have say the output can be floated +/- XXX volts.

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Thanx! Why this design is not popular at the West countries? (all found schematics are from Eastern Germany, Hungary and Bulgarian Republic)
ArthurDent:
Almost if not all the bench supplies I have have floating outputs. To have one output terminal grounded would severely limit the usefulness of the supply. A supply built into a stereo or some other piece of equipment is different because it isn't designed for general use and more often than not will have one output terminal grounded.
xavier60:

--- Quote from: ArthurDent on November 21, 2018, 04:51:07 am ---Almost if not all the bench supplies I have have floating outputs. To have one output terminal grounded would severely limit the usefulness of the supply. A supply built into a stereo or some other piece of equipment is different because it isn't designed for general use and more often than not will have one output terminal grounded.

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It would be better to call that "isolated" supply.
xavier60:
Some of us might be talking about different things. "floating type" to me means that the control circuitry has its ground reference connected to the + output terminal rather than the - terminal. The control circuitry floats up and down with the + output  voltage.
001:

--- Quote from: xavier60 on November 21, 2018, 05:47:58 am ---Some of us might be talking about different things. "floating type" to me means that the control circuitry has its ground reference connected to the + output terminal rather than the - terminal. The control circuitry floats up and down with the + output  voltage.

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Yea
This topology  is interesting and new for me
Where I can read about? Some hanbook and classical schematic?
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