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Group buy: DCT03 DC trap (filter) for toroidal transformers
Group buy: DCT03 DC trap (filter) for toroidal transformers
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Old 16th September 2020, 04:18 AM   #241
peranders is online now peranders  Sweden
Electrons are yellow and more is better!
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Join Date: Apr 2002
Location: Göteborg, Sweden
Group buy: DCT03 DC trap (filter) for toroidal transformers
Only the pcb.
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/Per-Anders (my first name) or P-A as my friends call me
DC trap DCT03 group buy, third run. Sign up HERE if interested. 16 boards in interest.
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Old 14th October 2020, 12:46 PM   #242
Kei is offline Kei  Wales
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Join Date: Mar 2009
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Registered for 3
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Old 15th October 2020, 04:37 AM   #243
peranders is online now peranders  Sweden
Electrons are yellow and more is better!
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Join Date: Apr 2002
Location: Göteborg, Sweden
Group buy: DCT03 DC trap (filter) for toroidal transformers
Nice. Let's see how many we can get on the interest list.
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/Per-Anders (my first name) or P-A as my friends call me
DC trap DCT03 group buy, third run. Sign up HERE if interested. 16 boards in interest.
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Old 15th October 2020, 07:16 AM   #244
Medisinmannen is offline Medisinmannen  Norway
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Join Date: Jan 2015
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I would like 2 boards & will sign up on your page. I do need some guidance though...

Ive got an 2000va toroid with sporatic hum. Quite a lot of current which will blow fuses below 16A(slow blow in breaker cab) 230v. I need help dimensioning the parts for dc trap. Can i follow your BOM or do i need other parts?
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Old 15th October 2020, 04:26 PM   #245
peranders is online now peranders  Sweden
Electrons are yellow and more is better!
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Join Date: Apr 2002
Location: Göteborg, Sweden
Group buy: DCT03 DC trap (filter) for toroidal transformers
I think your transformer needs a softstart besides a DC filter. In case you are interested, I have a pcb for that.

The BOM I have will work good for your needs. The capacitors take all current up to 30 amps, after that the current will flow through the diodes also and the diodes can take 12 amps. under normal circumstances all current will go through the caps.
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/Per-Anders (my first name) or P-A as my friends call me
DC trap DCT03 group buy, third run. Sign up HERE if interested. 16 boards in interest.
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Old 15th October 2020, 09:02 PM   #246
Medisinmannen is offline Medisinmannen  Norway
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Correct, it should have an softstart, but i dont have the time nor space in cabinet. Hegel did an design fault on this(and cap rating).

Added 2 boards to your list, thank you for reassuring me!
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Old 19th October 2020, 02:46 AM   #247
kffern is offline kffern  Australia
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Join Date: May 2006
Location: Perth
Group buy: DCT03 DC trap (filter) for toroidal transformers
Hi Peranders,
I have added myself for 3 boards.
Regards,
kffern
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Old 19th October 2020, 04:16 PM   #248
DrGMc is offline DrGMc
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just added 5 boards to the list
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Old 19th October 2020, 07:21 PM   #249
peranders is online now peranders  Sweden
Electrons are yellow and more is better!
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Join Date: Apr 2002
Location: Göteborg, Sweden
Group buy: DCT03 DC trap (filter) for toroidal transformers
Nice that the interest is increasing
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/Per-Anders (my first name) or P-A as my friends call me
DC trap DCT03 group buy, third run. Sign up HERE if interested. 16 boards in interest.
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