Magnetron drive boosting transformer

Details Magnetron drive boosting transformer Magnetron drive boosting transformer

2005-10-18

2005-10-18

Nguyen, Tuyen T (Department: 2832)

Inductor devices

With closed core interrupted by an air gap

C336S083000, C336S234000

Reexamination Certificate

active

06956456

ABSTRACT:
The present invention provides a boosting transformer for microwave oven, which is low in high-frequency loss, hardly saturated, small in size and easy to produce. The boosting transformer includes a rod-like ferrite core; and primary, secondary and heater windings wound around the rod-like ferrite core and piled up side by side in a direction of an axis of the rod-like ferrite core. It also includes a metal core formed from a long metal thin plate rolled by a plurality of times into a square-ring having one inner diameter larger than each of outer sizes of the primary, secondary and heater windings and the other inner diameter larger than a total size of the three windings piled up side by side, the metal core being arranged opposite to the rod-like ferrite core through a gap so as to be fitted toward the rod-like ferrite core from the outside of the primary, secondary and heater windings.

REFERENCES:
patent: 3209295 (1965-09-01), Baermann
patent: 2002/0171524 (2002-11-01), Tsai
patent: 58-103110 (1983-06-01), None
patent: 02-056910 (1990-02-01), None
patent: 04-154626 (1992-05-01), None
patent: 10-027720 (1998-01-01), None

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