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Old 30th September 2019, 11:29 AM   #241
analog_sa is online now analog_sa  Europe
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Ideal bridge rectifier GB
My experiments with a center tapped transformer lead to some fireworks, so perhaps two separate secondaries and the counter intuitive phasing is indeed a must.
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Old 30th September 2019, 04:45 PM   #242
BarG01 is offline BarG01  Hungary
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Quote:
Originally Posted by tvicol View Post
Min Input = 6Vac
Max Input = 40Vac
Continuous load = 5A
Peak load = 8A


Regards,
Tibi
Hi Tibi,
Will this be available here or via distributors?
Perhaps even lower voltage versions for tube heaters?
Regards, Gábor
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Old 1st October 2019, 05:38 AM   #243
tvicol is offline tvicol  Europe
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Gábor,

By the end of October, Saligny will be available in EU.
Still looking distributors for US, Asia and other markets.

Please follow us on Twitter

Regards,
Tibi
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Old 3rd October 2019, 09:41 AM   #244
tvicol is offline tvicol  Europe
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Just finished to mount first Saligny HV. These mosfets are very like unobtainium. Low Rdson and high Vds is tough combination.
Some hard tests will follow to see what this 30mm x 30mm baby is able to deliver.

Regards,
Tibi
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Last edited by tvicol; 3rd October 2019 at 09:45 AM.
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Old 3rd October 2019, 11:25 AM   #245
merlin el mago is offline merlin el mago  Europe
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Price?
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Old 3rd October 2019, 07:19 PM   #246
nautibuoy is offline nautibuoy  United Kingdom
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Watching with interest, a couple of those would be perfect for a new amp project I'm planning if they perform like the first saligny.
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Old 19th October 2019, 07:28 PM   #247
s610adam is offline s610adam  United States
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Hi Tibi,
Glad to see the prototype there, I'm interested in this for preamp circuits as well. Hopefully the price makes +/- PSUs feasible to get above 300V total for output stages too. It'd be a shame to have all that current capability unused :-)
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Old 20th October 2019, 02:40 AM   #248
Rinman77 is offline Rinman77
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Quote:
Originally Posted by tvicol View Post
I can confirm that LT4320 will work just fine in such configuration, CT transformer, because I already used in several applications.

What matter is phase on secondaries to be same.
Some symmetric transformer secondaries are winded at once and this lead to one center taped secondary, but with two sections in anti-phase. This do not matter much when is used with two diodes for rectification.

So, my advice is to use a transformer with two separate secondaries and make sure these are in phase, or use two transformers each with one secondary and, again, make sure these are in phase.

Regards,
Tibi

Tibi,

I have a transformer with a single secondary: +42 & -42 referenced to a single CT. Is it possible to use 2 x LT4320 and feed one of them CT and +42VAC, and the other -42VAC and CT, and thus feed 1 rail from the output of one 4320, and the other rail from the output of the other, with CT as defining ground between the rails? In this case the phase difference wouldn't matter, no?

Does the 4320 see the input as floating, and thus it defines "0 crossing" as midpoint of sin wave?

Forgive me if this is a stupid question, I'm reading this thread and the other "4320 based rectifier thread", but am still not clear if I can use the 4320(s) with my transformer.
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Old 20th October 2019, 06:57 AM   #249
nautibuoy is offline nautibuoy  United Kingdom
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Quote:
Originally Posted by tvicol View Post
Just finished to mount first Saligny HV. These mosfets are very like unobtainium. Low Rdson and high Vds is tough combination.
Some hard tests will follow to see what this 30mm x 30mm baby is able to deliver.

Regards,
Tibi
How's this development working out Tibi?

I have a project in-hand where I think I could make good use of a pair of these; 105VAC transformer secondary.

Last edited by nautibuoy; 20th October 2019 at 06:59 AM.
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Old 20th October 2019, 07:13 AM   #250
jean-paul is offline jean-paul  Netherlands
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Quote:
Originally Posted by Rinman77 View Post
Tibi,

I have a transformer with a single secondary: +42 & -42 referenced to a single CT. Is it possible to use 2 x LT4320 and feed one of them CT and +42VAC, and the other -42VAC and CT, and thus feed 1 rail from the output of one 4320, and the other rail from the output of the other, with CT as defining ground between the rails? In this case the phase difference wouldn't matter, no?

Does the 4320 see the input as floating, and thus it defines "0 crossing" as midpoint of sin wave?

Forgive me if this is a stupid question, I'm reading this thread and the other "4320 based rectifier thread", but am still not clear if I can use the 4320(s) with my transformer.
You attached the answer (from tvicol) in your post. Please read carefully.
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