By Cyrille Lothaire. Electrical Wiring. Publised at Thursday, December 28th 2017, 05:00:05 AM. You can see how all the power supply connections use large traces or copper pours. The AWG doesn’t have high current requirements, but the board house doesn’t give you a discount for using less copper, so you might as well opt for large (= low-resistance, low-inductance) traces if you have the room.
By Fleurette Nina. Car Wiring. Published at Wednesday, August 30th 2017, 14:23:30 PM. It is commonly known as the BENDIX type of solenoid. Such solenoids operate in three stages, the disengaged, partially engaged and engaged. In the disengaged position the drive gear is released and no current is flowing. In the partially engaged stage, current from the starter switch flows through both the pull-in and the hold-in coils.
By France Barbara. Electrical Wiring. Published at Sunday, August 27th 2017, 10:48:35 AM. SMT fixtures are rigid PCB carriers that allow manufacturers to load single or multiple irregular boards, and then take them through the standard processing machines. This makes it possible to carry out tasks such as automatic mounting of electronic components, infra-red reflow soldering, wave soldering, automatic testing, etc.
By Olivier Constance. Electrical Wiring. Published at Thursday, August 24th 2017, 10:28:02 AM. Care should be taken when depaneling the perforated-tab PCB array; otherwise, an incorrect method will splinter or tear the solder-mask or active surface layer. The ideal breakout method should not cause any damage to the board or transfer stress from the PCB surface to the components.
By Fleurette Nina. Electrical Wiring. Published at Saturday, August 19th 2017, 09:12:34 AM. You can also see that I’ve made it very easy for heat to move away from the regulator (U1) and into the ambient environment or into other portions of the PCB. U1’s thermal tab is connected to a large copper pour, and this copper pour is shot through with vias that conduct heat down to the internal ground plane. If I were really worried about thermal issues I could also connect these vias to a copper pour on the bottom side of the board, but in this case, it would have been total overkill.
By Dorian Yannic. Electrical Wiring. Published at Wednesday, August 16th 2017, 08:13:28 AM. The datasheet states (see image below) that this IC—specifically the CMOSens® technology that it uses—is "designed for mass production." Umm, should not this go without saying? I have seen datasheets state "not recommended for new designs," but I do not ever recall seeing one that specifies that the IC, or its underlying technology, is designed for mass production. This benefit makes me question if Sensirion has other ICs that are in fact not designed for mass production. It is all a bit puzzling. Have you seen other IC datasheets call this out? If so, please let us know.
By Dorian Yannic. Electrical Wiring. Published at Sunday, August 13th 2017, 05:49:48 AM. Processing irregular and fragile PCBs in standard assembly machines is often a challenge. Due to their non-standard dimensions, the oddly shaped, thin, or fragile boards do not fit properly in the reflow, component placement, or other standard processing machines. Lack of adequate support and alignment may strain, bend or damage the fragile boards as they go through the processing system. In addition, this may impact the accuracy of the process.
By Olivier Constance. Car Wiring. Published at Wednesday, August 09th 2017, 01:55:58 AM. Use insulating tape in a spiral to bind wires together. If you have to lead a new wire along a difficult route - to the rear of the car, for example - you could take the opportunity to lead a spare wire at the same time, for any accessory you might want to fit later. Cover the end of a spare wire with insulating tape to prevent an electrical short circuit. Identifying cable sizes 14/30 cable 65/30 cable High-tension (HT) lead The starter cable Types of cable.
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