Abstract:
The invention discloses a double-layer PCB of a low power wireless sensing system and a manufacturing method thereof. The low power wireless sensing system includes a first layer and a second layer. The first layer comprises a wireless communication module, a power amplifying module, a USB module, a balun module, an antenna module, a low-frequency oscillator and a high-frequency oscillator. According to the double-layer PCB of the low power wireless sensing system and the manufacturing method thereof, a circuit layout can be performed on the double-layer PCB to reduce volume of the PCB.
Abstract:
A structural body includes a first conductor having a first opening; a second conductor, having a second opening, which is opposite to at least a portion of the first conductor; a conductor via, passing through the first opening and the second opening, which is insulated from the first conductor and the second conductor; a first interconnect, provided in the inside of the first opening, of which one end thereof is connected to the conductor via and the other end thereof is formed as an open end and which is opposite to the second conductor; and a second interconnect, provided in the inside of the second opening, of which one end thereof is connected to the conductor via and the other end thereof is formed as an open end, and which is opposite to the first conductor.
Abstract:
A structural body includes: a first conductor and a second conductor of which at least portions are opposite to each other; a third conductor, interposed between the first conductor and the second conductor, of which at least a portion is opposite to the first conductor and the second conductor, and has a first opening; an interconnect provided in the inside of the first opening; and a conductor via which is electrically connected to the first conductor and the second conductor and is electrically insulated from the third conductor, wherein the interconnect is opposite to the first conductor and the second conductor, one end thereof being electrically connected to the third conductor at an edge of the first opening and an other end thereof being formed as an open end.
Abstract:
A printed circuit board (PCB) includes a first wiring layer, a second wring layer, a power layer, a grounded layer, dielectric layers between every two active layers, a capacitor, and two through holes. A first portion of the power layer corresponding to the electromagnetic interference source is isolated from the power layer to form an independent power area. A first through hole connects the independent power area to an end of the capacitor, the second through hole connects a second portion of the power area to the other end of the capacitor. When the interference source produces interference, the interference is conducted to the independent power area and conducted to the second portion of the power area via the through holes and the capacitor.
Abstract:
A method of manufacturing a circuit board which may include the steps of forming a circuit board with horizontal and vertical fiberglass fibers, rotating the circuit board, and cutting the circuit board so that the horizontal and vertical fiberglass fibers form a non-right angle with a cut line of the circuit board. The circuit board may have a plurality of conductive traces located thereon which pass by areas of higher fiberglass-to-resin material and lower fiberglass-to-resin material to assist in reducing differential to common mode conversion between signals in the plurality of conducive traces.
Abstract:
The invention relates to a laboratory sample instrument with a cable holding space in which a printed circuit board cable device is arranged. The printed circuit board cable device has at least one printed circuit board with first and second sides and, arranged in succession, at least one first circuit board section, at least one second circuit board section and at least one third circuit board section, and with the circuit board having a number of conductor tracks arranged in parallel with respect to one another and extending from a first track section arranged in the first circuit board section, via the second circuit board section to the third circuit board section, in which a second track section is arranged, wherein, in the second circuit board section, at least one conductor track is arranged on the first side of the board and at least one track is arranged on the second side.
Abstract:
A circuit member for a vehicle-mountable junction box is accommodated in the vehicle-mountable junction box. The circuit member is a metal core board including a metal core plate as a core. The core plate includes a separated part which is separated from a main part by a separating groove filled with an insulating material. Electronic components are mounted on both of a part including the main part and a part including the separated part.
Abstract:
An electronic apparatus includes a circuit board on which a plurality of electronic components are mounted, and a housing that is provided on the circuit board. The housing includes a mounting member that mounts the housing on the circuit board. The circuit board includes a plurality of circuit regions, an insulating region, and a mounting region. The plurality of electronic components is included in the plurality of circuit regions. The plurality of circuit regions are spaced from one another. The insulating region is located between adjacent circuit regions of the plurality of circuit regions to insulate between the adjacent circuit regions. In the mounting region, the mounting member is mounted on the circuit board. The mounting region is provided in the insulating region located between the adjacent circuit regions in a state where the housing is mounted on the circuit board.
Abstract:
A backlight unit is provided that, for a case where on a mounting board on which a plurality of point light sources are mounted, an electronic component other than those point light sources is mounted, can reduce the occurrence of uneven luminance, with no increase in the size of the backlight unit. This backlight unit (10) is provided with a PWB (6) having at least an LED mounting region (6a) extending along a side surface (3a) of a light guide plate (3). The LED mounting region (6a) of the PWB (6) is, at an end portion thereof on one side, provided with an FPC mounting region (6b) and is, at an end portion thereof on the other side opposite to the one side, provided with a capacitor mounting region (6c) extending along a side surface (3b) perpendicular to the side surface (3a) of the light guide plate (3).
Abstract:
An illumination device including: a support member accommodating therein a light guiding plate, and having a board placement space in a region where being along a longitudinal direction of an end surface of the light guiding plate, and extending from the end surface side of the light guiding plate to a back surface side thereof; and a light source circuit unit including a bendable circuit board including first and second regions, the first region including light emitting chips, and the second region being formed with a densely-packed portion of a wiring pattern of the light emitting chips. The light source circuit unit is placed in the board placement space after being bent to allow the light emitting chips to face the end surface of the light guiding plate, and to allow the densely-packed portion of the wiring pattern to come on the back surface side of the light guiding plate.