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#1
23rd August 2006, 05:17 PM
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Transformer Voltages in Duncan’s PSU Designer II
Transformer Voltages in Duncan’s PSU Designer II
Right have I got this right? Transformer 240vin 0-230 rms out 230v x 1.414 = 325.22v Do I subtract 10% regulation from the 325volts? 292.698v Entering 292 into PSU Designer II Transformer resistants Add together primary /secondary for total resistants
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 The Blues man   Turntable Rega 3 custom RB250 with ortofon 2M Blue /other goldring 1042 /WD phono2 /WD CF pre custom converted /WD psu2 /home built JE Labs Single Ended 6SL7/KT66/Speakers Frugal horns Mk1s Other turntables AR EB101/Thorns TD150mk2/Thorns TD160mk2 If you have trouble reading my posts its because I am a dyslexic member Last edited by colin.hepburn; 23rd August 2006 at 05:28 PM. 
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#2
23rd August 2006, 08:44 PM
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Re: Transformer Voltages in Duncan’s PSU Designer II
No, enter 230v 10% regulation, let it work out the 1.414 if thats correct for the config you have chosen.
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Just about everything I say has been in public use since the 1940's so no one owns the copyright on that. If by any chance its not prior art, then the copyright is retained by me.
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#3
23rd August 2006, 09:06 PM
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Re: Transformer Voltages in Duncan’s PSU Designer II
Quote:
I'm still confused PSU designer Help Files says to Enter the voltage for the secondary of the transformer. Note that this must be the off-load voltage, which is generally higher than the rated voltage of the transformer. off load voltage 230v rms x1.414= 325
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The Blues man Turntable Rega 3 custom RB250 with ortofon 2M Blue /other goldring 1042 /WD phono2 /WD CF pre custom converted /WD psu2 /home built JE Labs Single Ended 6SL7/KT66/Speakers Frugal horns Mk1s Other turntables AR EB101/Thorns TD150mk2/Thorns TD160mk2 If you have trouble reading my posts its because I am a dyslexic member
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#4
23rd August 2006, 09:39 PM
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Re: Transformer Voltages in Duncan’s PSU Designer II
No, thats not the off load voltage, thats the peak voltage of a 230v RMS sine wave. The off load voltage would be along the lines of 230 * 1.10 = 253v
What I meant was, if you right click on the TX, and edit the setting for it, then click the button next to the RMS V. You can enter the nominal voltage, the current rating, and the regulation. And it will calculate the off load (same as above) and the resistance of the TX.
__________________
Just about everything I say has been in public use since the 1940's so no one owns the copyright on that. If by any chance its not prior art, then the copyright is retained by me.
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#5
23rd August 2006, 09:47 PM
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Re: Transformer Voltages in Duncan’s PSU Designer II
Quote:
i seem to get off load and peak voltages mixed up got it now Cheers
__________________
The Blues man Turntable Rega 3 custom RB250 with ortofon 2M Blue /other goldring 1042 /WD phono2 /WD CF pre custom converted /WD psu2 /home built JE Labs Single Ended 6SL7/KT66/Speakers Frugal horns Mk1s Other turntables AR EB101/Thorns TD150mk2/Thorns TD160mk2 If you have trouble reading my posts its because I am a dyslexic member
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