By Dorian Yannic. Electrical Wiring. Publised at Friday, February 16th 2018, 23:39:49 PM. There are different panelization and de-panelization methods depending on the application of the PCB, thickness, shape, component layout, type of edges, and other factors. The two popular methods are the V-groove panelization and the breakaway tab panelization. Each of these uses a different method to separate the boards from the main array and has its advantages and limitations.
By Adrienne Emmanuel. Electrical Wiring. Publised at Saturday, January 06th 2018, 01:57:12 AM. Sensirion provides detailed information on both the package outline and the land pattern. In fact, it is recommended, because the IC pad pitch is just 0.5 mm, that only one solder mask opening should be used for all four pads on one side. It is also suggested, when using solder paste printing, that a laser-cut stainless steel stencil with trapezoidal walls and with a stencil thickness of 0.1 or 0.125 mm should be used. See the images below. This information should be quite helpful for a PCB layout design team.
By Dorian Yannic. Car Wiring. Published at Saturday, December 30th 2017, 06:55:37 AM. Push a screwdriver blade through the grommet carefully to enlarge it for the new cables, taking care not to damage insulation on existing wires. If you pass a cable through a new hole, fit the hole with a grommet. To pass wires up door pillars or behind trim, tape them to a piece of fairly stiff wire, poke it carefully behind the trim or up the pillar, and pull it through at the far end, bringing the wire with it.
By Gaspard Magalie. Motor Wiring. Published at Saturday, December 30th 2017, 05:48:48 AM. One way to distinguish the center tap (common wire) from a coil-end wire is by measuring the resistance. Resistance between common wire and coil-end wire is always half of the resistance between coil-end wires. This is because there is twice the length of coil between the ends and only half from center (common wire) to the end. A quick way to determine if the stepper motor is working is to short circuit every two pairs and try turning the shaft. Whenever a higher than normal resistance is felt, it indicates that the circuit to the particular winding is closed and that the phase is working.
By Gaspard Magalie. Car Wiring. Published at Saturday, December 30th 2017, 04:07:17 AM. The damage caused by overheated wires is easy to find; but if only a single wire has overheated and melted at some point, you may have to use a circuit tester to find the break. If the damage is in an open run of wiring, you may be able to mend separate wires without taking out a section of the loom. If it is in any part of the covered sections, you need to remove at least part of the wiring loom.
By Cyrille Lothaire. Car Wiring. Published at Saturday, December 30th 2017, 02:17:52 AM. Ring terminal This alternative to the spadeterminal is used on heavier components. "Scotchlok" connector The "Scotchlok" connector splices two wires together, using asharp metal blade which pierces theinsulation. This is clamped using a pair ofpliers, and covered with a plastic clip.
By Gaspard Magalie. Electrical Wiring. Published at Friday, December 29th 2017, 23:04:12 PM. The ease of loading and unloading the PCBs, as well as the ability to handle multiple PCBs, are important in high production lines. In addition, fixtures should provide thermal protection to the heat sensitive areas of the PCB.
By Claudine Nicolette. Electrical Wiring. Published at Friday, December 29th 2017, 20:19:29 PM. digital signal processor is a specialized microprocessor for the kind of algorithms employed in digital signal processing (DSP). The main goal is to accelerate the calculations while keeping the power consumption as low as possible. In this article, we review a basic addressing capability of DSP processors, i.e. circular buffering, which allows us to significantly accelerate the data transfer in a real-time system. Please note that since the acronym “DSP” stands for both “digital signal processing” and “digital signal processor," we will use the term “DSP processor” when referring to the hardware rather than the algorithm.
By Adrienne Emmanuel. Electrical Wiring. Published at Friday, December 29th 2017, 20:12:23 PM. Manufacturers can use fixtures or panels to secure or frame fragile, thin, or oddly shaped PCBs. This allows them to easily fit the boards in the standard assembly, reflow, or automatic inspection machines. In addition to handling the irregular boards, the technologies enable the simultaneous processing of multiple boards as opposed to working on each board individually, hence reducing the production time and costs.
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