By Claudine Nicolette. Electrical Wiring. Publised at Monday, January 08th 2018, 22:20:12 PM. The fixture should support the board and prevent distortion as the board goes through the printing, component placement, and reflow processes. Its construction should ensure adequate protection for the bottom side components during the double-sided reflow process.
By Gaspard Magalie. Motor Wiring. Published at Saturday, December 30th 2017, 05:48:48 AM. Stepper motors are like a servo motor in that they move to a spot and hold their position. But they can also spin like a DC and Brushless Motor. They can not hold their position as strongly as a servo motor, and they can not spin as fast as a brushed or brushless motor.
By Gaspard Magalie. Car Wiring. Published at Saturday, December 30th 2017, 04:07:17 AM. It transmits engine power to the gearbox, and allows transmission to be interrupted while a gear is selected to move off from a stationary position, or when gears are changed while the car is moving. Master cylinder Operatinglinkage Slave cylinder Flywheel The mastercylinder pumpshydraulic fluidin direction ofthe arrow. Most cars use a friction clutch operated either by fluid (hydraulic) or, more commonly, by a cable. When a car is moving under power, the clutch is engaged. A pressure plate bolted to the flywheel exerts constant force, by means of a diaphragm spring, on the driven plate. Earlier cars have a series of coil springs at the back of the pressure plate, instead of a diaphragm spring.
By Cyrille Lothaire. Car Wiring. Published at Saturday, December 30th 2017, 02:17:52 AM. Several modern cars have separate thin wires embedded in flat plastic strips. These strips are very compact, and are used mainly for accessories and relay controls that require little power.
By Gaspard Magalie. Electrical Wiring. Published at Friday, December 29th 2017, 23:04:12 PM. 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 Claudine Nicolette. Electrical Wiring. Published at Friday, December 29th 2017, 20:19:29 PM. The decoupling capacitors (C4, C5, C6, C7, C9, C10, C11) are arranged around the perimeter of the chip, very close to their respective power pins and to the vias that connect the caps to the internal planes. Notice how the smaller cap is always closer to the power pin; this is because we rely more on the lower-value capacitor for high-frequency bypassing, and thus the first priority is minimizing the inductance and resistance between the smaller cap and the pin.
By Adrienne Emmanuel. Electrical Wiring. Published at Friday, December 29th 2017, 20:12:23 PM. The fixtures are usually available in a variety of designs, materials, sizes, and thicknesses. Some can carry more than one board hence allowing the processing of multiple PCBs simultaneously. Other designs have adjustments to support both the primary and secondary side processes.
By Dorian Yannic. Electrical Wiring. Published at Friday, December 29th 2017, 15:30:43 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.
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