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Old 17th January 2007, 06:24 AM   #1
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Default power supply help

I have designed a 807 amp for a friend and he also wants a tube rectified power supply... I have always used SS for this. I have no clue what tube to use or how to start designing this. if any one knows where i can find diagram or info on making a 120 AC to 500v / 200v / 6.3v PS I would be vary thankful.


And be for you start on the DANGER HIGH VOLTAGE thing. I'm a line worker, but thanks for the thought its nice to know strangers still look out for one another out there.

Thanks
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Old 17th January 2007, 06:45 AM   #2
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Get PSUD2 (free download)...it has everything you'll ever need to design your own tube rectified psu...

Oliver
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Old 17th January 2007, 08:54 AM   #3
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When you use the excellent PSUD2, you need to be able to estimate the power transformer output voltage, its winding DC resistance, the inductance and DC resistance of the smoothing choke(s) and the current demanded by the load. You won't get meaningful results if these are not reasonably accurate. Also, set the duration of the simulation long enough to allow capacitors to charge up.
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Old 18th January 2007, 04:40 AM   #4
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Thats where ive had problems with that program. I cant find the needed info to program in the trans and choke. Im lost.
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Old 18th January 2007, 11:55 AM   #5
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On the ptx I think its normal to wire it with 10% regulation. Ro would then be Vout/10/Imax.

f.eks a 350VAC/0.4A ptx: 350/10/0,4=88 Ohm Ro.

This is info I have copied from elsewhere, so use it with caution. For the choke I think you have to get some manufactor info.
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Old 19th January 2007, 05:30 AM   #6
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Ok. This is what I got for the B+ of 500v the HV will be on a 1.5sec delay for the tubes to warm up. The OPT is 6K Ohm.
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Old 19th January 2007, 05:31 AM   #7
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and the output looks like this.
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