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Stacked Power Supply

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Posted on April 29, 2016 at 20:17:04
Tubenstein
Audiophile

Posts: 251
Joined: August 5, 2011
Whether stacked power supply required specially wound power transformer??

 

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RE: Stacked Power Supply, posted on April 30, 2016 at 09:51:03
Chip647
Audiophile

Posts: 2631
Location: The South
Joined: December 24, 2012
The higher the differential between the secondary and the primary, the higher the likelihood of arcing. Use only a quality transformer with adequate hi-pot testing. A secondary winding is independent and will simply look to it's ground reference, if that is 0 volts or 300 volts it does not care.

 

RE: Stacked Power Supply, posted on May 1, 2016 at 03:18:15
Tubenstein
Audiophile

Posts: 251
Joined: August 5, 2011
What about the stacked power supply from this circuit?

Does it require a special power transformer?

 

Looks pretty normal., posted on May 1, 2016 at 14:29:09
Chip647
Audiophile

Posts: 2631
Location: The South
Joined: December 24, 2012

You could also do a voltage doubler.
1000 to 1200 volts is as high as I would want to go with sub 400 volt rated transformers.

 

RE: Looks pretty normal., posted on May 2, 2016 at 01:35:09
Tubenstein
Audiophile

Posts: 251
Joined: August 5, 2011
I have a question for you. If I want to retain the original arrangement except increase the B+ winding from 2 x 340v to 2 x 450v, in case I have a capacitor that is 110uf @1600v, so no needed to have 2 caps (assume 2 are rated at 700v) in series as the circuit diagram shown?

What else need to change? Does the B+ winding of the power transformer (2 x 450v @0.4A) remain the same?

 

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