Abstract:
Vorgeschlagen wird eine Vorrichtung (10) zur Fehlerstromerkennung in einem elektronischen Gerät (12), mit zumindest einem ersten elektrischen Leiter (16), der ein erstes elektrisches Potential (V 1 ) führt, und mit einem Senseleiter (22), der ein elektrisches Ruhepotential (V R ) aufweist, das zwischen dem ersten elektrischen Potential (V 1 ) und einem weiteren elektrischen Potential (V 2 ) liegt. Die erfindungsgemäße Vorrichtung (10) ist dadurch gekennzeichnet, dass der zumindest eine erste elektrische Leiter (16) und der Senseleiter (22) auf und/oder in einem Isolationsmaterial (24) voneinander beabstandet angeordnet sind, wobei mittels des Senseleiters (22) im Fehlerfall eine Reduzierung der Isolationseigenschaften des Isolationsmaterials (24) durch eine Verschiebung des elektrischen Ruhepotentials (V R ) erkennbar ist.
Abstract:
Provided is a printed wiring board including a first heat dissipation pattern placed in one surface layer on which a semiconductor package is to be mounted, a second heat dissipation pattern placed in the other surface layer, and an inner layer conductor pattern placed in an inner layer, in which through holes are formed in the printed wiring board; the first heat dissipation pattern has a joint portion which is placed in an opposed region opposed to a heat sink of the semiconductor package and which is joined to the heat sink with solder; at least one of the through holes is placed in the opposed region; and the second heat dissipation pattern is formed in a pattern in which an end portion of a conductor film in the one of the through holes on the other surface layer side is separated.
Abstract:
A printed circuit board (PCB) reduces a simultaneous switching noise (SSN) causing power noise, thereby reducing radiated electromagnetic interference (EMI). In a double-layered PCB, a first substrate is arranged in parallel with a second substrate while being spaced apart from the second substrate by a predetermined distance. The first substrate includes a ground plane, which is deposited over an entirety of the first substrate. The second substrate includes a power plane deposited at a position of a component mounted to the printed circuit board (PCB) to transmit power to the component. Thus, the power trace of the PCB is simplified in structure, thereby reducing EMI radiation noise.
Abstract:
According to the invention, the protection device is provided with a first electroconductive structure which is conductively linked to the endangered contact element, in addition to a second electroconductive structure which is arranged in an adjacent position thereto on the carrier structure and is electroconductively linked to the ground connection. Facing sections of the electroconductive structures are physically separated from each other by means of a defined gap, whereby an excess voltage which is transmitted to the contact element is transmitted from the first electroconductive structure to the section of the second electroconductive structure by a spark discharge in the gap of the section and deviated to the ground connection.
Abstract:
The invention concerns a method for making a contactless chip card comprising an electronic module (600), and connected to said module, an antenna (200). The inventive method comprises the following steps: producing, on a first support sheet (100), the antenna (200) provided at its ends, with connection terminals (250); producing an insulating bridge (300) partly covering the antenna (200) coils except for the connection terminals (250); depositing a drop of filling material (500) on the insulating bridge; transferring the electronic module (600), its connection pads (610) being oriented towards the insulating bridge (300); then providing an electric connection between the module (600) contact pads and the antenna (200) connection terminals (250).
Abstract:
A printed circuit board (10) has a first image (11). In the first image (11) there is a first ball grid array pattern (61) for attaching a first input/output ball grid array package. The first ball grid array pattern (61) includes a de-populated center area. A first surface insulation resistance pattern (62) is laid out within the de-populated center area of the first ball grid array pattern (61). A second ball grid array pattern (24) also may be contained within the first image (11). The second ball grid array pattern (24) is for attaching a second input/output ball grid array package. The second ball grid array pattern (24) has rows of interconnect pads (81). A second surface insulation resistance pattern (82) is laid out between the rows of interconnect pads (81).
Abstract:
An energy conditioner structure comprising a first electrode (120), a second electrode (80), and a shield structure (70, 110, 150) provides improved energy conditioning in electrical circuits. The structures may exist as discrete components or part of an integrated circuit. The shield structure in the energy conditioner structure does not electrically connect to any circuit element.
Abstract:
An electronic assembly (200) includes a substrate (10) and at least one surface mounted electronic component (14). The substrate (10) includes a first side and a second side opposite the first side. The first side of the substrate (10) includes a plurality of conductive traces formed thereon. The plurality of conductive traces includes a first conductive trace (18A) and a second conductive trace (18B). The electronic component (14) is electrically coupled between the first and second conductive traces (18A,18B). A component body of the electronic component (14) is subject to interaction with a flux, which is utilized during electrical coupling of the electronic component (14) to the first and second conductive traces (18A,18B), to form a current leakage path. The substrate (10) is configured to prevent the formation of the current leakage path.