Ferrite core and transformer using the same
AssigneeTDK Corporation
InventorsMasaaki IWAKURA, Kazunori Ishibashi, Mitsuhiro Seki
Life of this patent
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Abstract
A ferrite core includes an end face portion, a pair of outer legs protruding from the end face portion, and a center leg protruding from the end face portion between the pair of outer legs. A width W1 close to one end portion of the center leg in a Y-axis direction perpendicular to a facing direction of the outer legs is smaller than a width W2 close to the other end portion. According to this configuration, a circuit component may be positioned close to the end portion. A transformer includes the ferrite core.
Claims6
1-13. (canceled)
A bobbin for a transformer comprising a cylindrical hoisting drum which winds a coil;
- wherein the two regions is asymmetrical, when a cross-section vertical to a direction of a core of at least one of a cavity and a periphery is divided into two regions by division line depending on any directions and positions.
A bobbin for a transformer comprising a cylindrical hoisting drum which winds a coil;
- wherein the two regions are symmetrical, when a cross-section vertical to a direction of a core of at least one of a cavity and a periphery is divided into two regions by division line depending on predetermined directions and positions;
- and
- the two regions divided by the division line other than division line depending on the predetermined directions and positions are asymmetrical.
A bobbin for a transformer comprising a cylindrical hoisting drum which winds a coil,
- wherein a cross-section vertical to a direction of a core of at least one of a cavity and a periphery is approximately an oval shape.
A bobbin for a vertical transformer comprising:
- guards formed in both ends of a cylindrical hoisting drum which winds a coil;
- and
- two terminal blocks that mounted on one of the guards so as to intervene a hoisting drum between the two terminal blocks;
- wherein in a cross-section vertical to a core direction of at least one of a cavity and periphery of the hoisting drum, when a Y-axis is the center line of an opposing direction of the two terminal blocks, and a X-axis is the center line vertical to the opposing direction of the two terminal blocks, the cross-section of two regions divided by the X-axis is an asymmetrical shape and/or the cross-section of two regions divided by the Y-axis is an asymmetrical shape.
(canceled)
Dependencies are inferred from the claim text.