Abstract:
Die Umschalteinrichtung zur wahlweisen galvanischen Verbindung von Leiterbahnen einer Leiterplatte (1) besteht aus einem länglichen Isolierstoffplättchen (9) mit einem auf diesem fixierten, den Leiterbahnen der Leiterplatte im Querschnitt entsprechenden Leiterbahnabschnitt (7), dessen Enden (8) kreisringförmig ausgebildet sind und jeweils eine Bohrung (10) umgeben, so daß das Plättchen mit dem Leiterbahnabschnitt auf die Leiterplatte aufgelegt und mittels Schrauben (11) mit selbstschneidendem Gewinde, die durch die Bohrungen gesteckt werden, mit der Leiterplatte verschraubbar ist.
Abstract:
There is described a printed circuit board for implementing lighting modules. The printed circuit board includes metallic zones including: - a first (200a), a second (200e) and a third positive terminal (200f), - a first (200b) and a second (200d) negative terminal, wherein the second negative terminal (200d) is connected to the first negative terminal (200b), and - electric contacts for the mounting of one or more LEDs (L) and electric traces such that the LEDs (L) are connected in series forming a LED string (22). Specifically, the printed circuit board comprises selection means (JP1, JP2) implemented with electric traces and metallic contacts adapted to be shortcircuited via links in order to permit all of the following connections: a) a connection of the LED string (22) between the first positive terminal (200a) and the third positive terminal (200f), b) a connection of the LED string (22) between the first positive terminal (200a) and the first negative terminal (200b), c) a connection of the LED string (22) between the second positive terminal (200a) and the third positive terminal (200f), and d) a connection of the LED string (22) between the second positive terminal (200a) and the first negative terminal (200b).
Abstract:
A circuit board system comprising mechanical protection of electrical components is presented. The circuit board system comprises a circuit board (101) furnished with electrical components (103-111) and a protection element (102) attached to areas of the circuit board which are free from the electrical components. The protection element has thickness in the direction perpendicular to the circuit board and it is shaped to leave the electrical components unscreened in the direction perpendicular to the circuit board. Thus, the protection element constitutes barriers protecting the electrical components but still allows the electrical components to be accessed from the direction perpendicular to the circuit board for example in a flying probe testing. The body of the protection element can be made of same material as the electrically insulating body of the circuit board. Thus, the thermal expansion coefficient of the protection element can be substantially the same as that of the circuit board.
Abstract:
A printed wiring board (100) includes a primary circuit (101) that receives power supply of a high voltage from a high power source; a pattern for a low voltage circuit (105) that is used when a low voltage component (102) used for a low voltage lower than the high voltage and a power supply terminal block that receives power supply of the low voltage from a low power source (112) are provided; a pattern for a common circuit (104) that is used when a high voltage component (108) used for the high voltage and the low voltage that insulates the pattern for the primary circuit (101) from the pattern for the common circuit (104); a first insulator (106) which insulates the pattern of the primary circuit (101) from the pattern of the common circuit (104); and a second insulator (107) that insulates the pattern for the common circuit (104) from the pattern for the low voltage circuit (105).
Abstract:
An electrical component with two conductive leads and two conductive wires are held within a housing. Each lead is inserted into a housing hole to make electrical contact with a wire conductor. Multiple additional electrical components (which may or may not be LEOs) can be held in similar housings attached their own pairs of wires. A PCB assembly can be attached to hold one or more such assemblies. A resilient PCB housing holds a PCB by an interference fit while conductive wires are inserted into its wire cavity so that exposed portions of conductive wires make electrical contact with electrical traces of the PCB which is biased by wire insulation. Two conductors can be held by the PCB housing which are forced into electrical contact with the PCB when it is inserted into the resilient PCB housing which then biases such contacts.
Abstract:
A circuit board system comprising a circuit board (301) comprising a first (321) and a second functional entity (322) galvanically connected by electrically conductive elements comprising a first electrically conductive lining (317) in a hole of a circuit board, a press-fit connection pin (315) providing a friction fit with the first lining, a second lining (318) in another hole of the circuit board, a second press-fit connection pin (316) providing a friction fit with the second lining, and a connection part (302) providing a galvanic connection between the first and second press-fit connection pins, the press-fit connection pins being comprised in a press-fit installable electrical connector element (324) on an edge of the circuit board, said connection part (302) being located between the circuit board (301) the connector element (324); a method for manufacturing said circuit board system comprising testing the first and second functional entity independently before providing a galvanic connection between said functional entities.
Abstract:
In accordance with certain embodiments, an illumination system comprising a plurality of power strings features elements facilitating compensation for failure of one or more light-emitting elements connected along each power string.
Abstract:
A printed circuit board (500a-d) is disclosed. The printed circuit board comprises a substrate (200) having a top surface (202) and a bottom surface (203). A ground plane (228) is on the bottom surface. A signal trace (212c) is on the top surface along a first direction. At least two isolated power planes (208,210) are on the top surface adjacent to opposite sides of the signal trace, respectively. A conductive connection (330) along a second direction couples to the two power planes, across the signal trace without electrically connecting to the signal trace, wherein the signal trace doesn't directly pass over any split of the ground plane.
Abstract:
An implantable medical device (IMD) having a hermetic housing formed from a case and a cover each having an exterior surface and an interior surface. An IMD component is mounted to the interior surface of the cover and has an electrical contact. A hybrid circuit is assembled in the case. The IMD component electrical contact is electrically coupled to the to the hybrid circuit assembled in the case.