Abstract:
Procédé pour réaliser un ou plusieurs motifs résonants (10) radio fréquence sur un circuit imprimé (11) caractérisé en ce qu'il comporte une étape de découpe d'un ou de plusieurs motifs résonants (10) directement dans le circuit imprimé (11) tout en conservant des moyens de maintien mécanique (13) des motifs résonnants audit circuit imprimé (11). Application à la réalisation de filtres
Abstract:
The invention relates to an arrangement for cooling subassemblies of an automation or control system, wherein the subassemblies each comprise at least one printed circuit board (LP) having electronic components (5, 6, 7, 8) of different temperature sensitivity arranged thereon. The printed circuit board (LP) has at least one first portion for temperature-sensitive components (6 8) and at least one second portion for temperature-insensitive components that generate waste heat. Interspaces are arranged between the first portion and the second portion, the interspaces each forming a thermally insulated trench. Furthermore, means are provided which keep away the heat over the temperature-sensitive components (6, 8) in a suitable manner and dissipate the waste heat from the printed circuit board (LP) before said heat reaches the temperature-sensitive components (6, 8).
Abstract:
Connecting structure between circuit boards, comprising a first circuit board (200) having at least one first circuit pattern, a second circuit board (300) having at least one second circuit pattern (320) electrically connected to the first circuit pattern (220) of the first circuit board (200), and a conductive connecting member (400) interposed between the first circuit pattern (220) and the second circuit pattern (320), wherein the first circuit pattern (220) has a first surface making a contact with the conductive connecting member (400) and a second surface attached to a first base insulating layer (210) in the first circuit board (200), and at least one hole (211) is formed in a region of the first base insulating layer (210) corresponding to the first circuit pattern (220), said at least one hole being closed at one end by the second surface of the first circuit pattern (220) and opened to the exterior at the opposite end. A battery pack having such a structure and a method for making it are also provided.
Abstract:
A lamp (1) includes an LED module (20), a drive unit (80) supplying power to the LED module (20), and a base (30) via which power is fed from an external power supply to the drive unit (80). The drive unit (80) is located between the LED module (20) and the base (30). The drive unit (80) includes a circuit board (80a) having a main surface on which lead-type electronic components (80b) are mounted, lead wires (first lead wires) (70a, 70b) extending from the main surface of the circuit board (80a) and connected to the LED module (20), and lead wires (second lead wires) (71a, 71b) extending from the main surface of the circuit board (80a) and connected to the base (30). The circuit board (80a) has a through-hole (80a1) extending from the main surface to an opposite surface thereof. The lead wires (70a, 70b) pass through the through-hole (80a1).
Abstract:
A device includes an electrical connector coupled to the end of a flex circuit. The connector includes interior ribs that engage slots in the flex circuit, with the ribs and slots separating adjacent contact pads on the flex circuit. The contact pads are exposed portions of conductive traces on the flex circuit. Other portions of the conductive traces may be covered by a dielectric material, such as a non-conductive ink. The ribs provide an increased isolation path between the contact pads.
Abstract:
To avoid an action to attempt to invade or violate Safe Equipment, it is suggested the implementation of a region completely surrounded by mechanical positioning of electronic circuits, mounted on rigid printed circuit boards or flexible circuits protection circuits and sensors with alarm devices, so that an invasion action will trigger the alarm, which will turn off the security keys and locks the Safe Equipment, disabling any action and preventing confidential data from being accessed; so, the security of information is enhanced by placing protection circuits mounted so that the mechanical arrangement of the parts of the equipment is considered to create a completely protected region, surrounded on all sides so that the access to this internal part is impossible.
Abstract:
Embodiments of the present invention provide a board and a communication device, where the board includes a printed circuit board PCB, a side of the printed circuit board PCB is set with a dent, a bottom of the dent is set with a connector, the side of the PCB is further set with a panel, the panel shrinks into a groove at a position corresponding to the connector, so as to make the groove be embedded into the dent, and a bottom of the groove and an interface of the connector are correspondingly opened with a through hole. In the embodiments of the present invention, the PCB forms the dent at a position where the connector is set, the panel shrinks into the groove at the position corresponding to the connector, and the bottom of the groove and the interface of the connector are correspondingly opened with the through hole, which can avoid a problem of decrease in depth of the PCB and layout space for components on the PCB caused by a long RJ45 connector and plastic jacket of a cable and a large diameter and bend radius of the cable, thereby improving an integration level of the PCB.