By Jessica Mireille. Car Wiring. Publised at Tuesday, January 09th 2018, 21:35:41 PM. In the unfortunate case of a fire, and it does happen, you can remove all of the old wiring and what they were attached to, and reinstall all new switches, gauges, ignition box, and so on, and the wiring will be ready to install quickly and easily.
By Charlotte Myriam. Car Wiring. Publised at Saturday, December 30th 2017, 08:57:08 AM. You have a lot of time in the off-season and for your team, designate a qualified person to be in charge of the wiring and the process of rewiring the car as well as being the pointman for mid-season troubleshooting of electrical problems. Don’t assume everything will be OK for next season with what you have, take the effort to make sure. It’s so much fun when things don’t go wrong.
By Madeleine Catherine. Motor. Published at Friday, December 22nd 2017, 21:10:31 PM. If more than one drive is being operated from the power supply this is not a problem since the other drive(s) will absorb this current for its needs, unless it is decelerating as well. For this case or for a single drive it may be necessary to place a voltage clamp across the power supply in the form of a Zener diode. The voltage of this diode must be greater than the maximum expected power supply voltage, yet low enough to protect the drive. A good choice would be either 82 volts or 91 volts as standard values.
By Valentine Sybille. Circuit. Published at Friday, December 22nd 2017, 20:36:12 PM. A capacitor is a device that stores energy in the form of voltage. The most common form of capacitors is made of two parallel plates separated by a dielectric material. Charges of opposite polarity can be deposited on the plates, resulting in a voltage V across the capacitor plates. Capacitance is a measure of the amount of electrical charge required to build up one unit of voltage across the plates.
By Valentine Sybille. Circuit. Published at Friday, December 22nd 2017, 19:21:35 PM. In some circuits, there are virtual grounds, which are nodes at the same voltage as ground, but are not connected to a power supply. When current flows into the virtual ground, the voltage at the virtual ground may change relative to the real ground, and the consequences of this situation must be analyzed carefully.
By Charlotte Myriam. Diagram. Published at Friday, December 22nd 2017, 18:19:02 PM. A wiring diagram is sometimes helpful to illustrate how a schematic can be realized in a prototype or production environment. A proper wiring diagram will be labeled and show connections in a way that prevents confusion about how connections are made. Typically they are designed for end-users or installers. They focus on connections rather than components
By Lydie Honorine. Power. Published at Friday, December 22nd 2017, 17:54:13 PM. In shunt regulation a resistor is typically placed in series with the load and the unregulated voltage. The resistor is small enough so that the load could always receive somewhat more than the maximum current it would ever need. The shunt regulator is placed across the load and conducts excess current around the load such that the voltage across the load remains a constant as the load draws the actual current at any given time. A common shunt regulator is a Zener diode which is an example of an open loop system. Feedback control can also be used to drive the current through the control element (a transistor) across the load. Shunt regulators are generally only used for low power applications because they can be very inefficient. However, shunt regulators have an inherent fault current limiting feature and also can regulate even if the load is forcing current into the regulator rather than drawing current from it. Shunt regulators also have an interesting feature that the input current is constant – independent of load current (except if a load fault occurs – but that is a special case not in normal operation). Thus shunt regulators are very good at isolating a load with rapid and large current fluctuations.
By Bertille Solange. Circuit. Published at Friday, December 22nd 2017, 17:48:48 PM. Impedance essentially can be viewed as frequency-dependent resistance. While resistance of a circuit is the instantaneous ratio between voltage and current, impedance of a circuit is the ratio between voltage and current for steady-state sinusoidal signals, which can vary with of frequency. As the later parts of this section will show, the voltage and current caused by applying a steady-state sinusoidal signal to any combination of resistors, capacitors, and inductors, are related by a constant factor and a phase shift. Therefore, impedance can be expressed by a complex constant using an extended version Ohm’s law.
By Madeleine Catherine. Diagram. Published at Friday, December 22nd 2017, 15:33:09 PM. In a PCB that uses through-hole technology, holes are drilled through the pads so that component leads can be inserted and then fastened (soldered) in place. In a PCB that uses surface-mount technology, component leads are soldered directly to the pads on the surface. Each set of pads (or holes) in the PCB is intended to receive a particular component. To identify which component must be loaded where, reference designators are printed on the circuit board immediately adjacent to the pads using a silk-screen process. A parts list links a designated set of pads to a physical component by describing the component and assigning it a particular reference designator. The reference designators guide assemblers and testers when they are working with the PCB. Many components must be placed into the PCB in a particular orientation. By convention, components that require a particular orientation have one lead designated as pin 1. On the PCB, a square pad or silkscreen indicator typically denotes pin 1.
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