Abstract: There are provided a core and a coil component including the same. The core includes core pieces coupled to each other, each of the core pieces including: a plurality of legs; a connection part connecting one ends of the legs to each other; and at least one contact part formed at a distal end of at least one of the legs in a manner in which a cross-sectional area of the leg may be decreased.

Abstract: Disclosed herein are an AC-DC converter in which an inductor of boost PFC and a flyback transformer are integrated in one and a method of preventing a magnetic density from being saturated by shifting a phase. The integrated magnetic circuit according to an exemplary embodiment of the present invention includes: a power factor correction stage (PFC-stage) including a boost inductor; and a flyback transformer including a primary winding and a secondary winding, wherein the boost inductor and the primary winding of the flyback transformer and the secondary winding of the flyback transformer are wound around a single core.

Abstract: There is provided a transformer including: a bobbin; a primary coil member mounted in the bobbin; and a secondary coil member formed integrally with the bobbin.

Abstract: There are provided a thin transformer capable of being used in a thin display device such as a liquid crystal display (LCD) device, a light emitting diode (LED) display device, and a flat panel display device including the same. The transformer includes: a bobbin part including inner and outer bobbins each including a pipe shaped body part having a though-hole formed in an inner portion thereof and a flange part protruding outwardly from both ends of the body part; coils respectively wound around the inner and outer bobbins; and a core electromagnetically coupled to the coils to thereby form a magnetic path, wherein the inner bobbin is inserted into the through-hole of the outer bobbin to thereby be coupled to the outer bobbin and at least one of the inner and outer bobbins includes the flange part having a width larger than a thickness of the body part.

Abstract: There are provided a thin transformer capable of being used in a slim display device such as a liquid crystal display (LCD) device and a light emitting diode (LED) display device, and a flat panel display device including the same. The transformer includes: a bobbin part including a plurality of bobbins, each including a pipe shaped body part having a through-hole formed in an inner part thereof and a flange part protruding outwardly from both ends of the body part; coils respectively wound around the bobbins; and a core electromagnetically coupled to the coils to thereby form a magnetic path, wherein at least one of the bobbins includes a coil skip part which is a route through which lead wires of the coil skipped through the flange part is disposed on an outer surface of the flange part.

Abstract: There are provided a thin transformer capable of being used in a thin display device such as a liquid crystal display (LCD) device, a light emitting diode (LED) device, and a flat panel display device including the thin transformer. The transformer includes a bobbin part including inner and outer bobbins each including a pipe shaped body part having a though-hole formed in an inner portion thereof and a flange part protruding outwardly from both ends of the body part; coils respectively wound around the inner and outer bobbins; and a core electromagnetically coupled to the coils to thereby form a magnetic path, wherein the outer bobbin includes a support part formed at the flange part formed at an upper end of the body part of the outer bobbin so as to cover a portion of the through-hole, and the inner bobbin is coupled to the outer bobbin while having one end supported by the support part.

Abstract: There is provided a thin transformer capable of being used in a thin display device such as a liquid crystal display (LCD) device and a light emitting diode (LED) display device. The transformer includes: a bobbin part including a plurality of bobbins, each including a pipe shaped body part having a though-hole formed in an inner portion thereof, a flange part vertically protruding outwardly from both ends of the body part, and a terminal connection part protruding from one side of a lower flange part formed at a lower end of the body part and having external connection terminals connected thereto; a core inserted into the through-hole of the bobbin to thereby form a magnetic path; and a coil part including coils each wound around the plurality of bobbins, wherein the bobbin part includes an outer bobbin and an inner bobbin inserted into the through-hole of the outer bobbin to thereby be coupled thereto, and the terminal connection part of the inner bobbin protrudes in an outer diameter direction thereof.

Abstract: There is provided a thin transformer capable of being used in a thin display device such as a liquid crystal display (LCD) device and a light emitting diode (LED) display device. The transformer includes: a bobbin part including a plurality of bobbins, each including a pipe shaped body part having a though-hole formed in an inner portion thereof, a flange part vertically protruding outwardly from both ends of the body part, and external connection terminals protruding from one side of a lower flange part formed at a lower end of the body part; a core inserted into the through-hole of the bobbin to thereby form a magnetic path; and a coil part including coils each wound around the plurality of bobbins, wherein the bobbin part includes an inner bobbin and an outer bobbin, and the inner bobbin is coupled to the outer bobbin such that the external connection terminals of the inner bobbin and the external connection terminals of the outer bobbin are opposed to each other.

Abstract: A thin transformer to be used in a thin display device such as a liquid crystal display (LCD) device and a light emitting diode (LED) display device. The transformer includes a plurality of bobbins, each including a pipe shaped body having a though-hole formed in an inner portion thereof, a flange vertically protruding outwardly from both ends of the body, and external connection terminals protruding from one side of a lower flange formed at a lower end of the body; a core inserted into through-holes of the bobbins to form a magnetic path; and coils each wound around the plurality of bobbins. The bobbins include inner and outer bobbins. The inner bobbin is coupled to the outer bobbin such that the external connection terminals of the inner bobbin and the external connection terminals of the outer bobbin are mutually opposed.

Abstract: There are provided a thin transformer capable of being used in a slim display device such as a liquid crystal display (LCD) device and a light emitting diode (LED) display device, and a flat panel display device including the same. The transformer includes: a bobbin part including a plurality of bobbins, each including a pipe shaped body part having a though-hole formed in an inner part thereof and a flange part protruding outwardly from both ends of the body part; coils respectively wound around the bobbins; and a core electromagnetically coupled to the coils to thereby form a magnetic path, wherein at least one of the bobbins includes a coil skip part which is a route through which lead wires of the coil skipped through the flange part is disposed on an outer surface of the flange part.

Abstract: There is provided a transformer including: a bobbin; a primary coil member mounted in the bobbin; and a secondary coil member formed integrally with the bobbin.

Abstract: There are provided a thin transformer capable of being used in a thin display device such as a liquid crystal display (LCD) device, a light emitting diode (LED) display device, and a flat panel display device including the same. The transformer includes: a bobbin part including inner and outer bobbins each including a pipe shaped body part having a though-hole formed in an inner portion thereof and a flange part protruding outwardly from both ends of the body part; coils respectively wound around the inner and outer bobbins; and a core electromagnetically coupled to the coils to thereby form a magnetic path, wherein the inner bobbin is inserted into the through-hole of the outer bobbin to thereby be coupled to the outer bobbin and at least one of the inner and outer bobbins includes the flange part having a width larger than a thickness of the body part.

Abstract: There is provided a thin transformer capable of being used in a thin display device such as a liquid crystal display (LCD) device and a light emitting diode (LED) display device. The transformer includes: a bobbin part including a plurality of bobbins, each including a pipe shaped body part having a though-hole formed in an inner portion thereof, a flange part vertically protruding outwardly from both ends of the body part, and external connection terminals protruding from one side of a lower flange part formed at a lower end of the body part; a core inserted into the through-hole of the bobbin to thereby form a magnetic path; and a coil part including coils each wound around the plurality of bobbins, wherein the bobbin part includes an inner bobbin and an outer bobbin, and the inner bobbin is coupled to the outer bobbin such that the external connection terminals of the inner bobbin and the external connection terminals of the outer bobbin are opposed to each other.

Abstract: A battery mounted semiconductor device is provided. A battery mounted semiconductor device comprises a semiconductor silicon wafer, an electric power supply formed on a backside of the semiconductor silicon wafer and a circuit pattern formed on a front side of the semiconductor silicon wafer.

Abstract: There are provided an integrated transformer in which a power conversion transformer and an inductor for stabilizing output power by the transformer are integrated into one transformer structure, and a power supply using the same. An integrated transformer according to an aspect of the invention includes: a core part including: first and second supports; and first and second outer legs and a center leg provided between the first and second supports, and magnetically connecting the first and second supports to each other, wherein a cross-section of the first and second outer legs and a cross-section of the center leg have a width of the first support and a width of the second support in a longitudinal direction, respectively, and a width of each of the first and second outer legs exceeds 0.5 times a width of the center leg but does not exceed 2 times the width of the center leg.

Abstract: There are provided a thin transformer capable of being used in a thin display device such as a liquid crystal display (LCD) device, a light emitting diode (LED) device, and a flat panel display device including the thin transformer. The transformer includes a bobbin part including inner and outer bobbins each including a pipe shaped body part having a though-hole formed in an inner portion thereof and a flange part protruding outwardly from both ends of the body part; coils respectively wound around the inner and outer bobbins; and a core electromagnetically coupled to the coils to thereby form a magnetic path, wherein the outer bobbin includes a support part formed at the flange part formed at an upper end of the body part of the outer bobbin so as to cover a portion of the through-hole, and the inner bobbin is coupled to the outer bobbin while having one end supported by the support part.

Abstract: There is provided a thin transformer capable of being used in a thin display device such as a liquid crystal display (LCD) device and a light emitting diode (LED) display device. The transformer includes: a bobbin part including a plurality of bobbins, each including a pipe shaped body part having a though-hole formed in an inner portion thereof and a flange part vertically protruding outwardly from both ends of the body part; a core inserted into the through-hole of the bobbin to thereby form a magnetic path; and a coil part including coils each wound around the plurality of bobbins, wherein the bobbin part includes an outer bobbin and an inner bobbin inserted into the through-hole of the outer bobbin to thereby be coupled thereto, and the flange part of the bobbin part includes at least one insulating rib protruding from an outer surface thereof in order to reinforce strength thereof.

Abstract: The present invention relates to an LCD display device, a transformer, which can be applied to a thin display device, such as an LED display, and a display device having the same.

Abstract: There is provided a thin transformer capable of being used in a thin display device such as a liquid crystal display (LCD) device and a light emitting diode (LED) display device. The transformer includes: a bobbin part including a plurality of bobbins, each including a pipe shaped body part having a though-hole formed in an inner portion thereof, a flange part vertically protruding outwardly from both ends of the body part, and a terminal connection part protruding from one side of a lower flange part formed at a lower end of the body part and having external connection terminals connected thereto; a core inserted into the through-hole of the bobbin to thereby form a magnetic path; and a coil part including coils each wound around the plurality of bobbins, wherein the bobbin part includes an outer bobbin and an inner bobbin inserted into the through-hole of the outer bobbin to thereby be coupled thereto, and the terminal connection part of the inner bobbin protrudes in an outer diameter direction thereof.

Abstract: There are provided a thin transformer capable of being used in a thin display device such as a liquid crystal display (LCD) device, a light emitting diode (LED) display device, and a flat panel display device including the same. The transformer includes: a bobbin part including inner and outer bobbins each including a pipe shaped body part having a though-hole formed in an inner portion thereof and a flange part protruding outwardly from both ends of the body part; coils respectively wound around the inner and outer bobbins; and a core electromagnetically coupled to the coils to thereby form a magnetic path, wherein the inner bobbin is inserted into the through-hole of the outer bobbin to thereby be coupled to the outer bobbin and at least one of the inner and outer bobbins includes the flange part having a width larger than a thickness of the body part.