By Cyrielle Marjolaine. Motor. Publised at Thursday, June 29th 2017, 01:05:11 AM. The power output decreases with speed because of the constant-torque loss due to detent torque and other losses. The same effect causes a slight decrease in torque with speed in the constant torque region as well. Finally, there is a rounding of the torque curve at the corner speed because the drive gradually transitions from being a current source to being a voltage source. The drive limits current to the motor below the corner speed and thus is a current source. Above the corner speed, the motor’s inductive reactance limits the current and the drive becomes a voltage source as it applies all of the power supply voltage to the motor.
By Charlotte Myriam. Diagram. Published at Tuesday, January 02nd 2018, 21:19:59 PM. When working with circuits, you will often find something called a schematic diagram. These diagrams use symbols to illustrate what electronic components are used and where they’re placed in the circuit. These symbols are graphic representations of the actual electronic components.
By Lydie Honorine. Diagram. Published at Tuesday, January 02nd 2018, 19:53:00 PM. Wiring diagrams use standard symbols for wiring devices, usually different from those used on schematic diagrams. The electrical symbols not only show where something is to be installed, but also what type of device is being installed. For example, a surface ceiling light is shown by one symbol, a recessed ceiling light has a different symbol, and a surface fluorescent light has another symbol. Each type of switch has a different symbol and so do the various outlets. There are symbols that show the location of smoke detectors, the doorbell chime, and thermostat. On large projects symbols may be numbered to show, for example, the panel board and circuit to which the device connects, and also to identify which of several types of fixture are to be installed at that location.
By Alix Loane. Circuit. Published at Tuesday, January 02nd 2018, 19:12:49 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.
By Bertille Solange. Circuit. Published at Tuesday, January 02nd 2018, 17:59:04 PM. The real part and imaginary part of impedance are interpreted as a resistive part that dissipates energy and a reactive part that stores energy. Resistors can only dissipate energy and therefore their impedances have only a real part. Capacitors and inductors can only store energy and therefore their impedances have only an imaginary part. When resistors, capacitors, and inductors are combined, the overall impedance may have both real and imaginary parts. It is important to note that the definition of impedance preserves the definition of resistance.
By Lydie Honorine. Car Wiring. Published at Tuesday, January 02nd 2018, 17:21:20 PM. Wiring. The mere mention of the subject brings chills to the spine of most performance car do-it-yourselfers. For most, it is part of the sacred trio of chores usually left to hired guns: bodywork/paint, upholstery, and wiring. But for those willing to do some research, practice a bit of trial and error, and spend the time and effort required, any of these chores can be (and are often) completed by those of us with at least a modicum of technical know-how.
By Jessica Mireille. Circuit. Published at Tuesday, January 02nd 2018, 16:17:07 PM. When a voltage is applied across a conductor, a current will begin to flow. The ratio between voltage and current is known as resistance. For most metallic conductors, the relationship between voltage and current is linear.
By Bertille Solange. Motor. Published at Tuesday, January 02nd 2018, 15:16:45 PM. If one changes the power supply voltage, then a new family of speed-torque curves result. As an example, if the power supply voltage is doubled then a new curve is generated; the curve now has twice the torque at any given speed in region 2. Since power equals torque times speed, the motor now generates twice as much power as well.
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