Abstract: A method of manufacturing an inductive module includes: (a) injection molding a plastic material to form a substrate that has opposite first and second surfaces and at least one receiving space indented from the first surface to the second surface; (b) disposing a ferromagnetic core unit in the receiving space; (c) forming conductive traces on the first and second surfaces of the substrate and forming conductive vias through the substrate, each of the conductive traces being electrically connected to a corresponding pair of the conductive vias; and (d) covering the conductive traces with a solder mask such that a part of the conductive traces are exposed to serve as contacts, followed by subjecting to a contact finishing process.

Abstract: A self generating power source includes a housing unit including a housing body, and an energy conversion unit, a rectifying unit and an energy storage unit all disposed inside the housing body. The energy conversion unit includes two first induction members and a second induction member. The first induction members are movable relative to the second induction member for generating an alternating current in the second induction member by virtue of electromagnetic induction. Each first induction member has two magnetic poles opposite to each other in polarity. The first induction members are disposed such that two of the magnetic poles of the first induction members having the same polarity are disposed to confront each other. The rectifying unit is coupled electrically to the second induction member for converting the alternating current into a direct current. The energy storage unit is coupled electrically to the rectifying unit for storing the direct current.

Abstract: A pulse transformer includes a core unit and a coil unit. The core unit includes an annular core part, and an annular choke part that is disposed in contact with the annular corepart. The coil unit includes a plurality of coils, each of which is wound around both of the annular core part and the annular choke part.

Abstract: A pulse transformer includes a core unit and a coil unit. The core unit includes an annular core part, and an annular choke part that is disposed in contact with the annular core part. The coil unit includes a plurality of coils, each of which is wound around both of the annular core part and the annular choke part.

Abstract: An inductive module includes an electrically insulating basic substrate unit having opposite first and second trace-forming sides, a ferromagnetic core unit embedded in the basic substrate unit and having horizontal sides substantially parallel to and respectively spaced apart from the first and second trace-forming sides, and a coil unit. The coil unit includes first and second conductive vias respectively formed in the basic substrate unit adjacent to vertical sides of the core unit, and respectively spaced apart from the vertical sides, and first and second conductive traces, each of which is disposed on a corresponding one of the first and second trace-forming sides, and interconnects electrically a corresponding pair of the first and second conductive vias. The conductive traces and the conductive vias of the coil unit cooperate to form an electric current path that substantially winds around the core unit.

Abstract: An inductive module includes an electrically insulating basic substrate unit having opposite first and second trace-forming sides, a ferromagnetic core unit embedded in the basic substrate unit and having horizontal sides substantially parallel to and respectively spaced apart from the first and second trace-forming sides, and a coil unit. The coil unit includes first and second conductive vias respectively formed in the basic substrate unit adjacent to vertical sides of the core unit, and respectively spaced apart from the vertical sides, and first and second conductive traces, each of which is disposed on a corresponding one of the first and second trace-forming sides, and interconnects electrically a corresponding pair of the first and second conductive vias. The conductive traces and the conductive vias of the coil unit cooperate to form an electric current path that substantially winds around the core unit.

Abstract: An RJ45 type network socket connector consists of a dielectric housing and a unit body inserted into the housing so as to increase the manufacturing efficiency of the connector. The unit body has a base with a bracket extending horizontally from a front side thereof, a PCB secured on a top of the base, a transformer positioned on the PCB, an inner contact portion arranged on the bracket and an outer contact portion extended through the base. The unit body is easily inserted from a step-shaped entry into a rear space of the housing and the bracket is extended into a receiving groove defined in a socket cavity formed in a front space of the housing and then securely positioned in the housing.

Abstract: A connector assembly consisting of a dielectric housing having at least one socket cavity defined in a front end thereof and a fixing recess defined at one outer side surface of the housing, a PCB securely fixed in the fixing recess by a sealing resin, and at least one indicator fixedly embedded in the sealing resin and secured between an inner side of the PCB and a bottom of the fixing recess, wherein the fixing recess is defined with a front opening at a front end thereof, therefore the at least one indicator emit light from the front opening of the fixing recess.