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In Reply to: Great points posted by Tre' on July 2, 2009 at 10:49:32:
The average current DOES change.... the power supply needs to accommodate this-- and all of the other factors present, without too much current delay to any part of the circuit, and without starving it in any way.
Ideal Power-Factor operation in a power source exerts a SLIGHT current lag-- but NOT MUCH. A power source that "leads" in current delivery will really mess things up.
Ideally, since in S.E. operation, the PS is also part of the audio circuit (it is in Push-Pull as well, but to a less noticeable degree)-- any tuning effects of the PS must be strictly avoided because musical signals being presented to active devices in the audio circuit will suffer from any tuning effects in the PS.
I think Douglas has it here-- you need to look at both attack and decay behavior.
Mikey has pointed out that there is much more to low DCR in an iron component than just copper-losses-- that iron storage and saturation points are part of the equation also. A good iron component has ALWAYS addressed all of these factors, so nobody here has ever considered only low-DCR alone.
You now have the basis for some good discussion on the PSU.
When these factors are resolved, the next step is to view an entire amplifier as a single, musically programmable Power Supply-- which is what an amplifier is supposed to be.
---Dennis---
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Follow Ups
- RE: Great points - tube wrangler 07/2/0920:45:50 07/2/09 (1)
- revisionist history - PakProtector 04:42:50 07/3/09 (0)
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