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Speaker Asylum General speaker questions for audio and home theater. |
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Speaker Asylum General speaker questions for audio and home theater. |
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In Reply to: The Problem is Coupling posted by Brian A on November 15, 2010 at 18:45:06:
Transformers don't care about line frequency unless the core is too small to support the line voltage at the line frequency. 50 Hz requires the core to swing more magnetic domains to support the line voltage compared to 60 Hz. This takes a more expensive core alloy, or more mass of the same core alloy.
Note that this is why there are so many switching power supplies. The very high switching frequency means much smaller (and cheaper) transformers can be used.
Most line transformers these days are made to work at 50 Hz so that manufacturers do not have to have parallel inventories for 50 and 60 Hz applications.
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Follow Ups
- Disagree. - Al Sekela 14:26:49 11/16/10 (2)
- I stand corrected - Brian A 12:00:31 11/17/10 (0)
- RE: Disagree. - ahendler 15:42:43 11/16/10 (0)
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