By Cyrille Lothaire. Car Wiring. Publised at Saturday, July 08th 2017, 12:19:44 PM. Relays are devices that utilize a central iron core fitted closely to the inside of a coil of wire. When the wire is energized the iron core will be drawn down the length of the coil, the direction dependent upon the direction of current flow. If the relays iron core is fitted with large, high current-carrying contacts it can be used as a high-current switch. Relays are used throughout cars for horns, electric fans, air conditioning clutches, etc. and the most important one is the starter solenoid.
By Dorian Yannic. Electrical Wiring. Published at Monday, January 08th 2018, 16:08:43 PM. Note that U4, a 10 MHz MEMS oscillator, is also very close to the microcontroller’s clock input pin. It’s always a good idea to minimize the length of traces carrying high-frequency digital signals. First of all, there are noise benefits: a shorter, more direct trace reduces the amount of noise that would otherwise be coupled into adjacent traces, and a shorter trace also reduces electromagnetic interference (EMI) because it is less effective as an antenna. The second issue is related to transmission-line effects. Minimizing trace length is a simple way to avoid problems related to signal reflections. However, reflection is not a significant concern at frequencies in the 10 MHz range, unless you are dealing with long interconnections or a very large PCB.
By Olivier Constance. Electrical Wiring. Published at Monday, January 08th 2018, 13:07:10 PM. As you may have noticed, this is one of those annoying situations in which the pin configuration is the opposite of what you want: the DAC’s input pins move from bit 7 to bit 0 going downward, whereas the MCU’s output pins move from bit 7 to bit 0 going upward. I couldn’t remedy this by re-assigning the microcontroller pins because I wanted the data bits to correspond to the actual bits of the Port 2 register (so that I could write a full byte to the DAC without moving bits around). So I ended up with some awkward routing, but nothing terrible.
By Adrienne Emmanuel. Car Wiring. Published at Monday, January 08th 2018, 11:01:23 AM. This system uses a metal wire embedded underneath the road as a guide for the battery powered vehicles. This wire is flexible enough to be used on straights, curves and hills. The vehicles are fitted with a motorised chassis and rechargeable battery which pushes the vehicle forwards via a small motor and gear arrangement, following the guide wire. The magnet offset to one side on the chassis is what activates the various additional modules (more on those later).
By Fleurette Nina. Electrical Wiring. Published at Monday, January 08th 2018, 08:44:07 AM. Fixtures are more suited for the flexible circuit boards as well as the fragile and thin PCBs. However, each new board design requires its custom fixture which can take between three and four days for a manufacturer to produce and deliver. As such, using fixtures can add up the costs and time to produce the PCBs.
By Dorian Yannic. Electrical Wiring. Published at Monday, January 08th 2018, 04:49:54 AM. Typical fixtures have high-temperature resistance, good mechanical strength for precision machining, and good abrasion and chemical resistance to withstand the pallet cleaners and soluble fluxes.
By Mailys Laurent. Car Wiring. Published at Monday, January 08th 2018, 03:44:15 AM. Wires and bundles of wires are clipped to the bodywork to keep them out of the way. Where they run through a hole, the sharp edges are lined with a rubber grommet. Sometimes the loom is divided into sections joined by multi-pin plugs and sockets, so that it can be removed and refitted section by section.
By Claudine Nicolette. Motor Wiring. Published at Monday, January 08th 2018, 01:16:15 AM. Fixed speed motors have a cable that contains power, inputs (motor on, motor half speed) and an output pulse related to the motors motion. Variable speed motors typically have no circuitry directly associated with the motor. Instead there are typically three wires coming out that attach to an "Electronic Speed Controller."
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