By Madeleine Catherine. Circuit. Publised at Saturday, August 05th 2017, 15:56:27 PM. Electric circuits use electric power to perform some function, like energize a heating or lighting element, turn a motor, or create an electromagnetic filed. Electronic circuits differ from electric circuits in that they use devices that can themselves be controlled by other electric signals. Restated, electronic circuits are built from devices that use electricity to control electricity. Most electronic circuits use signals that are within 5 to 10 volts of ground; most circuits built within the past several years use signals that are within 3 to 5 volts from ground. Some electronic circuits represent information encoded as continuous voltage levels that can wander between the high and low voltage supply rails – these are called analog circuits. As an example, a sound pressure level transducer (i.e. a microphone) might drive a signal between 0V and 3.3V in direct proportion to the detected sound pressure level. In this case, the voltage signal output from the microphone is said to be an analog ifthe sound pressure wave itself. Other circuits use only two distinct voltage levels to represent information. Most often, these two voltage levels use the same voltages supplied by the power rails. In these circuits, called digital circuits, all information must be represented as binary numbers, with a signal at 0V (or ground) representing one kind of information, and a signal at 3.3V (or whatever the upper voltage supply rail provides) representing the other kind of information. In this series of modules, we will confine our discussions to digital circuits.
By Bertille Solange. Motor. Published at Thursday, December 28th 2017, 02:57:57 AM. The effect of setting the motor current to twice the rated value. This abuses the motor because it will dissipate four times as much heat as setting the current to its proper value. The actual increase in low-speed torque is considerably less than double because of magnetic saturation of the motor iron.
By Alix Loane. Circuit. Published at Thursday, December 28th 2017, 02:30:59 AM. Resistors, capacitors, and inductors are the fundamental components of electronic circuits. In fact, all electronic circuits can be equivalently represented by circuits of these three components together with voltage and current sources.
By Madeleine Catherine. Car Wiring. Published at Thursday, December 28th 2017, 00:43:47 AM. When fitting extra accessories, such as a rear window heater which consumes a heavy current, always wire it through the ignition switch. Some ancillary components can be operated without the ignition turned on by turning the switch to the "auxiliary" position. A radio is usually wired through this switch, so that it can be played with the engine off.
By Sasha Sara. Car Wiring. Published at Thursday, December 28th 2017, 00:39:16 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.
By Lydie Honorine. Car Wiring. Published at Wednesday, December 27th 2017, 23:39:45 PM. As you know, a diesel engine differs from other liquid fuel engines in one major respect: the fuel/air charge is ignited by cylinder pressure and resulting heat, instead of via an electrical ignition system (diesel-fueled engines don’t use spark plugs).
By Lydie Honorine. Power. Published at Wednesday, December 27th 2017, 20:45:16 PM. The maximum current required in an application should be carefully considered when selecting an IC regulator. The load current specification for an IC regulator will be defined as either a single value or a value that is dependent on input-output voltage differential (this is detailed in the following section on protection circuits).
By Valentine Sybille. Circuit. Published at Wednesday, December 27th 2017, 18:06:37 PM. Since single-layer/single-sided PCBs only have their various circuits and electrical components soldered onto one side, they are easy to design and manufacture. This popularity means that they can be purchased at a low-cost, especially for high-volume orders. The low-cost, high volume model means they are commonly used for a variety of applications, including calculators, cameras, radio and stereo equipment, solid state drives, printers and power supplies.
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