Abstract:
A printed circuit board unit usable with a computer device includes a main board on which a first component and a second component are mounted on an upper surface, and a routing unit mounted on at least one of the upper surface and a lower surface of the main board and including a sub-wire forming at least part of a wire to transmit a data between the first component and the second component.
Abstract:
An electrical circuit material including a substrate and a bend section is provided. The substrate is formed to be planar. The substrate has a first face and a second face being back to back each other. The first face is provided with a first conductive pattern. The bend section is formed by a planar flexible material being bent or rounded and having a third face and a fourth face being back to back each other. The third face is provided with a second conductive pattern. The bend section is arranged with the substrate in such a way that a portion of the third face being in contact with the first face of the substrate and that the second conductive pattern is connected to the first conductive pattern.
Abstract:
A bridge connector that is configured to electrically and mechanically couple first and second circuit boards is provided. Each circuit board includes a board surface having through-holes. The connector includes a housing having a coupling side configured to interface with the board surfaces when the housing is coupled to the first and second circuit boards. The connector also includes a plurality of bridge contacts that are held within the housing. Each contact includes tail portions that project from the coupling side. Each tail portion is configured to form an interference fit with a corresponding through-hole in order to couple the first and second circuit boards. The tail portions are arranged to hold the first and second circuit boards along the coupling side.
Abstract:
There is constructed a constitution such that a shunt resistor 30 is interposed in series with a portion capable of measuring an output current of a unidirectional power source portion 1 of a high frequency heating apparatus and a voltage generated at the shunt resistor 30 is outputted by a buffer 31. Further, an operational amplifier 3101 having a high input impedance is used for the buffer 31. Further, a diode bridge 101 and a semiconductor switching element 205 are fixed to a common heat radiating plate 33, the heat radiating plate 33 is formed with a notched portion 33a to thereby ensure insulating distances to the diode bridge 101 and the semiconductor switching element 205, and the shunt resistor 30 is arranged on a straight line the same as that between the diode bridge 101 and the semiconductor switching element 205.
Abstract:
A motherboard includes a chipset, a first connector pad suitable for receiving a first type of PCI connector, a second connector pad suitable for receiving a second type of PCI connector, a plurality of first transmission lines, a plurality of second transmission lines, and a plurality of areas for mounting switches. One end of each first transmission line is connected to the chipset, another end of each first transmission line is connected to an end of a corresponding area, one end of each second transmission line is connected to another end of the corresponding area, another end of each second transmission line is connected to the second connector pad, the first connector pad is connected to the plurality of first transmission lines, and the switches are selectively mounted on the plurality of areas.
Abstract:
The present invention provides a matched-impedance jumper that is operable to connect pairs of differential signal conductors to provide improved signal transmission characteristics. In an embodiment of the invention, the impedance-matched jumper is used to connect a first pair of differential signal conductors to a selected pair of differential signal conductors selected from a plurality of second pairs of differential signal conductors. The impedance-matched jumper comprises a plurality of input pins that are operable to connect with a plurality of connection pads on the first pair of differential signal conductors and a plurality of output pins operable to connect with a plurality of connection pads on the predetermined second pair of differential signal conductors. A plurality of internal conductors are operably connected to the input pins and the output pins to define a signal path therebetween. The signal path defined by the input pins, the output pins, and the internal conductors provides an impedance-matched passthrough for differential signals.
Abstract:
In Electronics, there exists three distinctive areas namely, discrete components or devices, circuits, and systems. A circuit is built from devices and a system is built from circuits. This invention aims at reducing the implementation of electronic systems down to just three steps namely, systems design, printed-circuit-board planar assembly, and systems test when-as a plurality of Universal Systems Printed-Circuit Blocks of pre-defined sizes is used. Each of said Universal Systems Printed-Circuit Blocks being usable and reusable for prototypes and production is built from a printed circuit board having thereon a functional circuit and a variety of circuit patterns and interconnection structures such that, any of said Blocks, when joined together with other Blocks on the same plane by standard connectors or electrically conductive compounds to form a systems board, can send and receive signals and voltages to and from any other Blocks.
Abstract:
A jumper device includes a jumper and a connecting member. In this case, one end of the connecting member connects with the jumper device. Another end of the connecting member has at least one connecting portion. A jumper assembly including the jumper device is also provided.
Abstract:
A method of soldering comprises disposing first and second balls of solder adjacent one another on a wire; disposing flux on the wire between and in contact with both of the first and second balls and so as to substantially fill a space between the first and second balls; disposing the wire on a substrate so that the first and second balls of solder contact a single conductor on the substrate; and melting the first and second balls of solder and flux and soldering the wire to the conductor.
Abstract:
The invention relates to an electrical connector housing having a first casing, a second casing and a sidewall, and including a first printed circuit board and a second printed circuit board superposed with a given space. The first printed circuit board includes at least a first conductor and the second printed circuit board includes at least a second conductor. The electrical connector housing further includes a connector-receiving portion projecting from the sidewall and placed at a position between the first and second printed circuit boards. The first conductor on the first printed circuit board is connected to a first terminal device, while the second conductor on the second printed circuit board is connected to a second terminal device, and the first and second terminal devices protrude at the connector-receiving portion, so that they are adapted to connect to a terminal of an outside connector to be inserted into the connector-receiving portion.