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ahz
Joined: 06 May 2003
Posts: 12
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 24 Aug 2004 13:59 Reducing Leakage Inductance |
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| we have a full bridge converter with 35 v , 500 A output . we wanna reduce the leakage inductance of the transformer . Any practical advices are welcommed .
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DoctorX
Joined: 02 Sep 2004
Posts: 73
Location: USA
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| 15 Sep 2004 2:15 Re: Reducing Leakage Inductance |
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| ahz wrote: |
| we have a full bridge converter with 35 v , 500 A output . we wanna reduce the leakage inductance of the transformer . Any practical advices are welcommed . |
What do you mean by "leakage inductance"? You mean stray magnetic coupling?
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flatulent
Joined: 19 Jul 2002
Posts: 4849
Helped: 289
Location: Middle Earth
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| 15 Sep 2004 3:25 Re: Reducing Leakage Inductance |
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| You will have to maximize the coupling coefficient. One trick in small signal transformers is to put shunt capacitors on the primary and secondary to turn the leakage inductance to a low pass filter. This is called "building out" the transformer.
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batdin
Joined: 03 Jun 2004
Posts: 181
Helped: 3
Location: Bulgaria
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| 15 Sep 2004 11:56 Re: Reducing Leakage Inductance |
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Not easily.To reduce leakage inductance one must put the primary winding as close as possible to the secondary one.This contradicts to the safety requirements however.
I think using a high-permittivity material would reduce the leakage inductance given the same primary and secondary inductances.
By the way,are we talking about a switch-mode welder?
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