im sure im not using the right terminalogy but what im talking about is 2 positive regs in parallel where the ground of the bottom one becomes V minus. Is there any sonical benefits to this setup opposed to having a properly mirrored V minus supply?
With this circuit, two identical, isolated secondaries each power identical, isolated positive regulator circuits.
Then the negative output node of one circuit is connected to the positive output node of the other circuit,
with this connection forming the common or ground. Both regulator circuits will perform equally well,
rather than using a negative regulator IC that performs less well than the positive regulator IC.
The outputs of the two regulator circuits are connected in series, not in parallel.
Mirrored circuits for audio signals are highly overrated and misconceived. Using mirrored circuits results in
the two channels being more (electrically) different, not less different. It is in general impossible to have
an identical layout for each channel if they are mirror images of each other, since all active devices
have more than two pins, and their package layouts are seldom symmetrical. Best results are with dual mono,
where each channel is literally identical, and each channel uses an identical pcb. Then the two stereo channels
will perform the same, because they ARE the same.
Then the negative output node of one circuit is connected to the positive output node of the other circuit,
with this connection forming the common or ground. Both regulator circuits will perform equally well,
rather than using a negative regulator IC that performs less well than the positive regulator IC.
The outputs of the two regulator circuits are connected in series, not in parallel.
Mirrored circuits for audio signals are highly overrated and misconceived. Using mirrored circuits results in
the two channels being more (electrically) different, not less different. It is in general impossible to have
an identical layout for each channel if they are mirror images of each other, since all active devices
have more than two pins, and their package layouts are seldom symmetrical. Best results are with dual mono,
where each channel is literally identical, and each channel uses an identical pcb. Then the two stereo channels
will perform the same, because they ARE the same.
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Yes thats exactly what i was talking about. Has anyone read about or tried an a/b setup where the typical mirror vs the above topology was compared? Looks like it might even have an added benefit of the bottom device creating sort of a pseudo floated ground?
The outputs of the two regulator circuits are connected in series, not in parallel.
The two halves perform identically. This is clearly better than the inferior negative regulator circuit.
The floating, two terminal regulator circuit works the same regardless of which output terminal
is connected to common. This connection is a constraint on only one node of the circuit, so that all
of the relative potentials between the circuit nodes will operate the same as when all nodes are floating.
The two halves perform identically. This is clearly better than the inferior negative regulator circuit.
The floating, two terminal regulator circuit works the same regardless of which output terminal
is connected to common. This connection is a constraint on only one node of the circuit, so that all
of the relative potentials between the circuit nodes will operate the same as when all nodes are floating.
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