Abstract:
A signal-segregating connector for use in a system having a printed circuit board, a first electrical structure and a second electrical structure. The connector includes a first set of conductive elements to convey signals between the first electrical structure and the printed circuit board, and a second set of conductive elements to convey signals between the first electrical structure and the second electrical structure.
Abstract:
This invention discloses a flexible flat cable (FFC) which has a characteristic impedance (Z0) of 100 Ω±5% and is used in a low voltage differential signaling (LVDS) signal transmission system for reducing the quantity of components of the LVDS signal transmission system and its costs, and the LVDS signal transmission system is a high-frequency signal transmission system between a liquid crystal display (LCD) interface and a system board interface, which comprises a low voltage differential signal (LVDS) receiver, a flexible flat cable (FFC) having an characteristic impedance (Z0) of 100 Ω±5%, an accessory insert board, and a lift-up connector; wherein the LVDS receiver constitutes the signal transmission interface for the LCD and the lift-up connector constitutes the signal transmission interface for the system board interface, and one end of the flexible flat cable having the characteristic impedance (Z0) of 100 Ω±5% together with the accessory insert board constitute a structure similar to an LVDS connector and electrically connects the LVDS connector, and the other end of the flexible flat cable with the characteristic impedance (Z0) of 100 Ω±5% electrically connects the lift-up connector.
Abstract:
The present invention is an improved replaceable LED module. In particular, the present invention is directed to an environmentally resistant LED module for mounting on at least a pair of electrical leads with a non-conductive sheath surrounding conductive wire. A replaceable LED module preferably comprises a circuit board removably secured to a base by a set of snap tabs on the base. The base has two open ends and contains two electrical leads that traverse the base through the open ends. A protective gasket preferably covers the circuit board. The circuit board is preferably coated in acrylic conformal coating. The preferred circuit board has an LED and two contact teeth. Each contact tooth pierces the protective gasket and the non-conductive sheath of an opposing stranded electrical lead and makes electrical contact with the conductive wire. Thus, power is supplied to the LED from the leads while maintaining the protective gasket and sheath.
Abstract:
The invention relates to a conducting structure of a multi-layers IC board, which includes conducting rod being received in aperture of the IC board to obtain an effective connection and conduction. And the conducting wire is placed horizontally on the IC board, which has its ending pin and annular metal ring to contact with two apertures respectively and to be welded thereon for perfect conduction and smaller assembled volume.
Abstract:
The present invention provides an over-voltage surge protection device comprising a printed circuit board having a signal carrying conductive member having a plurality of nodes positioned therealong, and a conductive member running to ground also having a plurality of nodes positioned therealong. The nodes on the signal carrying member and ground member extend along a common path with corresponding ones of the signal carrying nodes positioned in adjacent, but spaced relation to the ground nodes. The peripheral edges of the nodes accumulate and discharge transient high voltage surges. Preferably, the nodes are shaped in the form of triangles due to this particular geometry's favorable ability to accumulate and discharge voltage, but may be formed in a variety of geometries.
Abstract:
A Quadrax to Twinax conversion apparatus includes stacked trace layers of transmission line with a ground plane between the trace layers. Embodiments include trace layers of stripline or microstrip. Orthogonal plated through holes include a diagonal pair of through holes in electrical contact with traces on one of the trace layers and another diagonal pair of through holes in electrical contact with another trace layer. Contact pins extend through these orthogonal plated through holes with one pair of pins making electrical contact with one trace layer and the other pair of pins making electrical contact with another trace layer. The conversion apparatus electrically connects Twinax cables to respectively different trace layers without crossing over or disturbing the relative positions of the Quadrax diagonal pairs for very efficient high-speed data transfer from four wire Quadrax to two wire Twinax cables.
Abstract:
A connection structure includes an external conductor of a coaxial cable which is electrically connected to a ground conductor installed at a surface of a planar circuit substrate, and an internal conductor of the coaxial cable which is connected to a micro strip line installed at the other surface of the planar circuit substrate. The internal conductor of the coaxial cable is welded to a conductive pattern of the micro strip line. The conductive pattern of the micro strip line includes a conductive welding portion welded to the internal conductor of the coaxial cable, a conductive landing portion extending from the conductive welding portion in a predetermined width, and an impedance converting portion whose width increases as it extends from the conductive landing portion.
Abstract:
An electrical connection structure terminates an electrical signal wire while electrically coupling the wire to a target circuit board. A rigid printed circuit board or flex circuit is attached in a substantially perpendicular orientation to the target board by way of solder. A termination circuit is then mounted near the end of the rigid board or flex circuit that is attached to the target circuit board, with the termination circuit electrically coupling the signal wire with the target circuit board.
Abstract:
Occurrence of EMI is reduced without a sharp increase of the manufacturing cost by suppressing a common mode current stably. There is provided a disclosed printed-circuit board being adapted such that a width of an outer edge section of a T-shaped pattern is widened so as to surround a recessed section with a frame-shaped additional electric conductor by electrically connecting the frame-shaped additional electric conductor with the T-shaped pattern making up a ground pattern so as to close the recessed section.
Abstract:
The present invention provides an over-voltage surge protection device comprising a printed circuit board having a signal carrying conductive member having a plurality of nodes positioned therealong, and a conductive member running to ground also having a plurality of nodes positioned therealong. The nodes on the signal carrying member and ground member extend along a common path with corresponding ones of the signal carrying nodes positioned in adjacent, but spaced relation to the ground nodes. The peripheral edges of the nodes accumulate and discharge transient high voltage surges. Preferably, the nodes are shaped in the form of triangles due to this particular geometry's favorable ability to accumulate and discharge voltage, but may be formed in a variety of geometries.