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Loss of voltage from poor wire winding and leakage inductance?

russwr

Dec 20, 2019
15
Joined
Dec 20, 2019
Messages
15
Why is there loss of 14v from hand wound toroid transformer output with separate winds on core not overlapping. The frequency of primary was matched to source AC, the primary and secondary windings are in same direction and entire ring core is covered with wire , but 2 separate sides. I thought the core under Primary caused induction into separate secondary windings. Desparate.
 

Ylli

Jun 19, 2018
373
Joined
Jun 19, 2018
Messages
373
What core material? There is always going to be some leakage inductance - flux that is not being confined to the core and is escaping. A toroidal core 'concentrates' the flux but does not fully contain it - the flux you are inducing on one side of the form is not all making it to the far side. The leakage inductance can be reduced by bifilar winding.
 
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