Abstract:
A modular light emitting diode (LED) mounting configuration is provided including a light source module having a plurality of pre-packaged LEDs arranged in a serial array. The module includes a heat conductive body portion adapted to conduct heat generated by the LEDs to an adjacent heat sink. As a result, the LEDs are able to be operated with a higher current than normally allowed. Thus, brightness and performance of the LEDs is increased without decreasing the life expectancy of the LEDs. The LED modules can be used in a variety of illumination applications employing one or more modules.
Abstract:
An electrical connector assembly comprises a first connector (1) and a second connector (1′) having a same configuration with a housing (30, 30′) and a mounting face (34, 34′) adapted for mounting onto a printed circuit board PCB (100) except for a distinguishable portion (353, 353′) provided on the housing (30, 30′) adjacent to the mounting face (34, 34′) thereof. The first connector (1) is not able to be regarded as the second connector (1′) to be mounted onto the PCB (100) due to the different distinguishable portions (353, 353′) of the first and second connectors (1,1′).
Abstract:
A receiver (2) includes tuner units (1) and (3), and a circuit board (21). The tuner unit (1) includes a connector (11), a tuner board (12), and a housing (13) for accommodating them. The tuner board (12) is positioned within the limit of a height dimension L perpendicular to the direction of connection (depicted by an arrow P) of the connector (11). In addition, a recess (141B) is formed in the housing (13), in which the circuit board (21) disposed on the recess (141B) is also positioned within the limit of the height dimension L perpendicular to the direction of connection (depicted by an arrow P) of the connector (11).
Abstract:
There is described a multi-layer printed circuit board and a method of installing it. The circuit board includes a first signal layer formed on its obverse surface; a ground layer arranged at a position next to the first signal layer; an electronic power source layer arranged at a position next to the ground layer; and a second signal layer formed on its reverse surface. The first and second patterns are formed around peripheral areas of the first and second signal layers, respectively. The first ground pattern and the second ground pattern are electrically coupled to each other by plural through holes, and the multi-layer printed circuit board is installed on an electro-conductive housing in such a manner that a substantially whole area of the second ground pattern electrically contacts a mounting area of the electro-conductive housing, the mounting area being an electro-conductive area continuously coupled to the electro-conductive housing.
Abstract:
A printed circuit board capable of resisting electrostatic discharge and a routing method of the one or multi-layer printed circuit board are disclosed. The routing method includes planning a first routing area, planning a second routing area apart from the first routing area for a predetermined distance at least, and connecting an attenuating component between the first routing area and the second routing area for attenuating an impulse generated by electrostatic discharge in order to prevent the impulse spreading to the second routing area from the first routing area.
Abstract:
An optical transmission module has: an optical module having an optical element and a receptacle portion; a circuit board that is electrically connected to the optical module through an electrical connection member; and a housing in which the optical module and the circuit board are placed. The optical module is in surface-contact with and fixed onto the housing. The receptacle portion and the circuit board are not in contact with the housing. The receptacle portion is restricted in position while having a positional degree of freedom at least in a direction perpendicular to an optical axis of light emitted from the optical element. The circuit board is restricted in position while having a positional degree of freedom at least in a direction of the optical axis.
Abstract:
A motherboard may have contact pads arranged along a peripheral region on one or both surfaces thereof. A memory module may have unit packages fixed to an upper plate and a lower plate of a module frame. The unit packages may be spaced apart from each other. The upper and the lower unit packages may have contact terminals facing each other. The contact terminals may be elastically bendable, and/or the unit packages may be mounted on the plates via elastic members. The peripheral region of the motherboard may be inserted into the memory module, so the contact terminals of the memory module may elastically contact with and be electrically coupled to the contact pads of the motherboard.
Abstract:
A modular light emitting diode (LED) mounting configuration is provided including a light source module having at least one LED. The module includes a heat conductive body portion adapted to conduct heat generated by the LED away from the LED. As a result, the LED can be operated with a higher current than normally allowed. Thus, LED brightness and performance is increased without decreasing life expectancy. An adhesive connects the LED module to the mount surface. A plurality of such LED modules can be pre-wired together in a substantially continuous fashion and provided in a dispenser, such as a roll or box. Thus, to install a plurality of such LED modules, a worker simply pulls modules from the dispenser as needed, secures the appropriate number of modules in place, and connects the assembled modules to a power source.
Abstract:
An optical transceiver module having a plurality of optical subassemblies and a printed circuit board is disclosed. The transceiver module includes lead frame connectors for connecting the optical subassemblies to the printed circuit board. The lead frame connectors include a stamped and bent conductive lead structure that is encased in an insert injection molded plastic casing. The plastic casing provides electrical insulation for the conductors in the lead frame as well as mechanical support for the finished component. The lead frame connectors connect to the leads associated with the optical subassemblies and are surface mounted onto the printed circuit board to establish connectivity between the optical subassembly and the printed circuit board. The lead frame assemblies are generally more reliable and less expensive than using flexible printed circuit board structures to establish electrical connectivity between optical subassemblies and transceiver printed circuit boards.
Abstract:
An arrangement for connecting the terminal contacts of an electronic component to electrical contacts formed on a printed circuit board. An at least partly flexible conductor support having a plurality of interconnects provides an electrical connection between the terminal contacts of the electronic component and the electrical contacts of the printed circuit board such that a portion of the conductor support that is connected to the printed circuit board is arranged on an end face of the printed circuit board and extends perpendicularly in relation to the upper and lower surfaces of the printed circuit board. Furthermore, a conductor support formed with relatively narrow middle portion is provided to facilitate such an arrangement.