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Post by Rexton on Aug 24, 2018 9:03:45 GMT
Can anybody the relevancy of stiffening a power supply. Is this the process of getting a better controlled voltage level to specific components, or improving the accuracy of the sine wave? I'm grasping a straws  |
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Post by zippy on Aug 24, 2018 9:16:39 GMT
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Post by MartinT on Aug 24, 2018 9:32:09 GMT
Stiffness relates to how reluctant the power supply voltage is to sag under the pressure of current draw variations.
The stiffer the power supply, the more impervious it is to voltage sag. This implies that its output impedance is very low and consequent noise performance will be improved. Stiff power supplies nearly always result in improved audio quality.
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Post by DaveC on Aug 24, 2018 11:11:19 GMT
As Martin says, it's output impedance. Both for a continuous current draw and also for very short term instantaneous current draw. Depending on the design and purpose these two figures might differ hugely.
Dave
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Post by Deleted on Aug 24, 2018 11:55:45 GMT
And there was I feeling it was about the rigidity of a stressed member  Stiff psu think large V8 engine powering in Fiat 500; will never struggle this side of Jules renouncing vinyl as the devils attempt to usurp mind control on happless whippet thrashers and toe tappers |
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Post by Slinger on Aug 24, 2018 11:57:39 GMT
So, unlike the Fiat 500, it's all about headroom then? |
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Post by DaveC on Aug 24, 2018 13:23:05 GMT
Not headroom, but as I described above. A big V8 is like an oversized PSU. A small PSU with a low static and dynamic output impedance can be better. Just putting in a huge PSU is not the answer.
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Post by Deleted on Aug 24, 2018 13:29:03 GMT
Not headroom, but as I described above. A big V8 is like an oversized PSU. A small PSU with a low static and dynamic output impedance can be better. Just putting in a huge PSU is not the answer. Dave Trying to make light of Semantics, like spelling grates the hell out of me. The ability to cope with any situation possible that the electronics that are connected to it could possibly demand plus a reserve margin of over 500% that do you Dave |
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Post by DaveC on Aug 24, 2018 13:31:00 GMT
Not really. But close, it's more than simply demand.
Dave
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Post by Rexton on Aug 24, 2018 18:40:00 GMT
Thanks all.
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