Abstract:
An apparatus for transmitting electrical signals is disclosed. The apparatus includes a substrate and a twisted pair of conductors located on the substrate. The twisted pair of conductors has a first layer comprising conductive material, a second layer comprising nonconductive material, and a third player comprising conductive material. The first layer has a plurality of segments separated by a plurality of gaps. The second layer is positioned in said gaps and electrically insulates a portion of the segments positioned within the gaps. The third layer is positioned over the second layer. The third layer is configured to electrically connects an end of one segment to an end of another segment. The twisted pair of conductors formed by the three dimensional structure comprises two electrically isolated conductors twisted about each other.
Abstract:
The invention relates to a sensor for detecting current flowing in a conductive wire, in which: a printed circuit board comprises a through-hole (5) passing from one side of it to the other along a vertical axis in order to receive the conductive wire; a magnetic core forms a first magnetic ring (10) surrounding the through-hole and extending horizontally between metallization layers; and each turn of each first coil is formed by two conductive tracks (44, 46) produced, respectively, in metallization layers located above and below the first magnetic ring and electrically connected to each other via a pad (48) passing through an insulating layer and passing through the interior of this magnetic ring.
Abstract:
Circuit imprimé comportant : - un empilement le long d'une direction verticale de plusieurs couches de métallisation séparées mécaniquement les unes des autres par des couches électriquement isolantes, - au moins une première et une seconde bobines (38, 39) raccordées en série entre elles, ces première et seconde bobines étant enroulées, respectivement, autour d'un premier et d'un second axes (34, 36) d'enroulement verticaux, les spires de chacune de ces bobines étant formées par des pistes conductrices réalisées dans les couches de métallisation et raccordées électriquement les unes aux autres par des plots traversant au moins l'une des couches électriquement isolantes, la réunion de ces pistes conductrices et de ces plots traversant formant une seule et même ligne conductrice qui s'étend continûment d'une extrémité de la première bobine vers une extrémité opposée de la seconde bobine, caractérisé en ce que les première et seconde bobines (38, 39) comportent : - une même première piste conductrice (90), réalisée dans une première couche de métallisation, enroulée autour du premier axe vertical (34) d'enroulement et enroulée autour du second axe vertical (36) d'enroulement, et - une même deuxième piste conductrice (130), réalisée dans une seconde couche de métallisation, enroulée autour du premier axe vertical (34) d'enroulement et enroulée autour du second axe vertical (36) d'enroulement - un premier plot (96) traversant au moins l'une des couches isolantes pour raccorder électriquement les première et deuxième pistes conductrices l'une à l'autre de manière à ce que, lorsqu'elles sont alimentées, le courant tourne toujours dans le même sens autour du premier axe d'enroulement et toujours dans le même sens ou dans un sens opposé atour du second axe d'enroulement.
Abstract:
Cet anneau magnétique bobiné est formé d'une partie supérieure (172) en « U » et d'une partie inférieure (174) en « U », chaque partie supérieure et inférieure comportant deux branches verticales (176, 178, 180 , 182) introduites chacune dans un trou respectif d'un circuit imprimé, chaque branche de la partie supérieure se superposant, à l'intérieur du trou respectif et dans une direction horizontale, sur la branche correspondante de la partie inférieure pour établir la continuité magnétique entre ces deux parties de l'anneau magnétique.
Abstract:
A transmission line circuit includes a dielectric layer and a plurality of pairs of conductive lines extending generally along a first direction. The conductive lines in each pair are separated by the dielectric layer, and the conductive lines in each pair intermittently cross at crossing points that are separated by a first distance. The crossing points of adjacent pairs of the conductive lines are offset along the first direction.
Abstract:
A multilayer printed circuit board ('PCB') coil that simulates a coil formed from litz wire. The PCB includes a plurality of alternating conductor and insulating layers interconnected to cooperatively form the coil. Each conductor layer includes a trace that follows the desired coil shape and is divided into a plurality of discrete conductor segments. The segments are electrically connected across layers to provide a plurality of current flow paths (or filaments) that undulate between the layers in a regular, repeating pattern. The coil may be configured so that each filament spends a substantially equal amount of time in proximity to the paired coil and therefore contributes substantially equally to the self or mutual inductance of the coil. Each conductor layer may include a plurality of associated traces and intralayer connector that interconnected so that each filament undulates not only upwardly/downwardly, but also inwardly/outwardly in a regular, repeating pattern.
Abstract:
A highly compact inductor formed on opposite faces of a dielectric substrate. Sets of parallel spaced conductive traces formed on the opposite faces of the substrate are interconnected by metallized vias through the substrate, in such a way as to form a continuous spiral conductive path. The inductor is preferably formed as two closely adjacent segments, each with conductive traces on each face of the substrate and each having metallized vias interconnecting the conductive traces. The segments are electrically connected in series and produce a magnetic field that extends through each segment in opposite directions and is closely coupled from one segment to the other. The inductor is, therefore, electromagnetically similar to a wire-wound toroidal inductor, providing high inductance and contourable Q values, but is highly compact, especially in the z-axis direction normal to the substrate.
Abstract:
A wireless communications device can include a power amplifier that is configured to transmit information to a wireless communications network during a first time interval and configured to avoid transmitting information during a second time interval. A circuit substrate is coupled to the power amplifier and a power source is configured to provide power to the power amplifier. First and second conductor are coupled to the power amplifier and to the power source, and have respective overlapping and non-overlapping portions on the circuit substrate.