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Tweakers' Asylum Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ. |
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Tweakers' Asylum Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ. |
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In Reply to: not necessarily wrong ... posted by Slider on April 21, 2007 at 19:14:46:
The definition of Class-A is that the devices conduct current during 360 degrees of a sine wave cycle. This does not necessarily mean that the input power requirements are steady during variations in the output power. The belief in this relationship is due to circuit designs that are very old. These older designs generally have a bias point that does not intentionally change as the power level changes. Unfortunately this is not a very efficient design from a power consumption perspective or from a power vs. device cost perspective.As designs have developed over time techniques have been developed and utilized that allow compliance with the definition of Class-A that improve power efficiency and allow greater power output from a fixed number of devices.
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- Re: not necessarily wrong ... - beermanpete@socal.rr.com 23:39:40 04/21/07 (0)
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