Fly back transformer, and its inductance adjusting method and de

Details Fly back transformer, and its inductance adjusting method and de Fly back transformer, and its inductance adjusting method and de

1996-05-29

1998-04-28

Trammell, James P.

Boots, shoes, and leggings

336178, H01F 3820

Patent

active

057453675

ABSTRACT:
An FBT, its inductance adjusting method and a device capable of adjusting a gap between the top and bottom cores features a stable inductance value required for the FBT even without requiring a separate spacer between the top and bottom ferrite cores. An adhesive agent is applied to top end of a coupling portion of the bottom core provided within the low voltage bobbin, and a predetermined inductance value between the bottom core and the top core is obtained by a hardening of the adhesive agent therebetween without having a separate gap maintaining arrangement. The inductance value within the FBT can be precisely adjusted even without requiring a separate spacer at the gap portion between the top and bottom ferrite cores of FBT. In addition, it is not necessary to use a U-clip for fixing the top and bottom ferrite cores.

REFERENCES:
patent: 4224500 (1980-09-01), Cruickshank et al.
patent: 4305056 (1981-12-01), Mochida et al.
patent: 4434547 (1984-03-01), Pascal et al.

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