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Propeller Head Plaza Technical and scientific discussion of amps, cables and other topics. |
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Propeller Head Plaza Technical and scientific discussion of amps, cables and other topics. |
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In Reply to: Optimize separation transformer posted by jensw on March 19, 2005 at 18:37:57:
What you are trying to do is not clear.An isolation transformer would normally have the same voltage out as going in, and the amp rating would be commensurate with the total wattage rating of the CDP, plus some extra for overhead and dynamics.
Most single transformer isolation units are rated in watts, so this should be simple to check the specs.IF you are talking about a digital isolation transformer along the lines of what I have presented in the past,
(see:
Digital Isolation Filter for CDPs:
http://www.AudioAsylum.com/audio/tweaks/messages/43988.html
schematic (top picture)
http://www.AudioAsylum.com/audio/tweaks/messages/44145.html
my additional "tweak" to the iso filter:
http://www.AudioAsylum.com/audio/tweaks/messages/47160.html )then neither one is big enough, the first is only about 27 watts, the second one is only 12 watts.
You would multiply the voltage and current to get the wattage, and go from there. If the CDP actually draws upwards of 60W, then I would make sure that the back-to-back transformers are at least rated for 70 to 80 watts total, so the voltage sag is not too great.
If you plan to use the damping resistor trick and/or the filter cap on the secondaries, then make sure to leave enough overhead for these as well. This could result in the transformers being rated at 100W.
Jon Risch
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Follow Ups
- Re: Optimize separation transformer - Jon Risch 20:21:14 03/23/05 (2)
- Re: Optimize separation transformer - jensw 04:08:10 03/28/05 (1)
- Re: Optimize separation transformer - Jon Risch 19:17:34 03/28/05 (0)
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