By Bertille Solange. Power. Publised at Friday, December 29th 2017, 04:58:06 AM. The thermal shutdown circuitry in an IC prevents the junction temperature from rising high enough to damage the part (see Figure 7). This is accomplished by monitoring the die temperature and reducing internal power dissipation to hold the temperature at the limiting value (usually about 160°C).
By Jessica Mireille. Diagram. Publised at Saturday, December 23rd 2017, 14:53:38 PM. Starting to make sense? These are the basics and may even seem obvious or intuitive to you, such as the wires and if they are connected. Whenever you determine your specific field of electrical engineering, you may see more complex diagrams and symbols. You’ll learn also that different countries use different symbols. For example, of the two symbols for resistors above, the first one is used in the U.S., while the second is used in Europe. You will also learn about the various symbols used for switches, other power supplies, inductors, meters, lamps, LEDs, transistors, antennas, and much more.
By Lydie Honorine. Motor. Published at Friday, December 29th 2017, 17:00:56 PM. An ideal step motor would have zero mechanical friction, its torque would be proportional to ampere-turns and its only electrical characteristic would be inductance. Ampere-turns simply mean that torque is proportional to the number of turns of wire in the motor’s stator multiplied by the current passing through those turns of wire.
By Alix Loane. Car Wiring. Published at Friday, December 29th 2017, 16:59:56 PM. If your terminal is attached by a nut to a post, use lock washers and if it is a very important connection, and most are, use blue Loctite on the post. Many electrical failures are random and due to loose connections that are hard to trace. A quick look and the connection looks good, but if it is loose, it will cause an interruption of the current flow periodically.
By Bertille Solange. Car Wiring. Published at Friday, December 29th 2017, 14:22:05 PM. The electrical system of a car is a closed circuit with an independent power source the battery. It operates on a small fraction of the power of a household circuit. Current flows along a single cable from the battery to the component being powered, and back to the battery through the cars metal body. The body is connected to the earth terminal of the battery by a thick cable.
By Bertille Solange. Motor. Published at Friday, December 29th 2017, 13:36:08 PM. Eddy current and hysteresis heating are collectively called iron losses. The former induces currents in the iron of the motor while the latter is caused by the re-alignment of the magnetic domains in the iron. You can think of this as “friction heating” as the magnetic dipoles in the iron switch back and forth. Either way, both cause the bulk heating of the motor. Iron losses are a function of AC current and therefore the power supply voltage.
By Lydie Honorine. Car Wiring. Published at Friday, December 29th 2017, 11:17:46 AM. t is not a good idea to use push-on terminals. These can loosen and come off. If your gauge or other electrical components have those types of male terminals, you can drill a small hole in the blade and solder your wire to the terminal, then use shrink wrap to cover the connection. Remember to slide the shrink wrap over the wire before soldering.
By Madeleine Catherine. Car Wiring. Published at Friday, December 29th 2017, 07:00:27 AM. This is called a negative earth system, and when buying an electrical accessory a radio, for example check that it is of a type suitable for your cars system. Fitting a radio with the incorrect polarity will damage the set, but most car radios have an external switch for setting the polarity to suit that of the car. Switch to the correct setting before fitting.
By Lydie Honorine. Car Wiring. Published at Friday, December 29th 2017, 06:24:32 AM. As for the gauges, new designs are coming out all the time. If you have a hard time seeing your gauges at night, then the new brightly lit types might be the thing to now install. According to Dick, it is important to use a high-quality tachometer. Accuracy of rpm is very important to choosing the right gear.
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