Bel Fuse (macao Commercial Offshore) Limited

Other

Bel Fuse, Inc.

Brian Buckmeier

John Matthew Hess

Edwin Edralin

Joseph Berry

Joe Berry

A power over Ethernet (PoE) interface for 10GBase-T Ethernet includes at least one communication channel Ethernet interface including an autotransformer having a center tap for coupling direct current (DC) power. A combination of the geometry of the toroid core of the autotransformer and in some embodiments of a common mode choke, as well as the wire twisting, the wire distribution and the wire routing allow maximizing bandwidth up to or greater than 500 MHz for 10GBase-T performance by increasing the coupling and reducing capacitance across the wires, and results in return and insertion losses and OCL that meet anticipated standards.

Power over ethernet for 10GBase-T ethernet

An electrical device is produced by winding wires around a core. The device may be used as a transformer. Wires are inserted into, through and around a first hole and a first side of a core a desired number of times. Thereafter, the wires are extended along either a top or a bottom of the core and then passed through and around a second hole of the core. After the wires are wound around the second hole of the core and a second side of the core, the production of the device is complete.

Electrical isolation device capable of limiting magnetic saturation even upon receipt of high power D.C. bias and, method for making the same and connector incorporating the same

An isolation magnetic device produced by inserting a first end of a wire through a first hole of a core, wrapping the first end of the wire around a first side of the core and inserting the first end of the wire through a second hole of the core. The second hole of the core is spaced from the first hole and has a longitudinal axis extending parallel to a longitudinal axis of the first hole. The device is further produced by inserting a second end of the wire through the second hole of the core, wrapping the second end of the wire around the first side of the core and inserting the second end of the wire through the first hole of the core.

Isolation magnetic devices capable of handling high speed communications

An electric device capable of handling high speed data communication and which could be used with, for example, a connector application such as an RJ45 type connector. The electric device is formed by inserting at least one wire through a first hole in a core, wrapping the wire around a side of the core, and inserting the wire through a second hole in the core a desired number of times. A common mode choke may be combined with the electric device. To form such a choke, two of the wires from the electric device may be wrapped around a second core in the same fashion a desired number of times.

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San Diego, CA, United States of America

Brian Buckmeier