By Sasha Sara. Motor. Publised at Monday, December 18th 2017, 08:03:25 AM. What can be seen is there is not increase of the power output; the motor simply reaches its maximum power at a lower speed, all at the great expense of a four-fold increase in motor heating.
By Bertille Solange. Power. Published at Friday, December 29th 2017, 04:58:06 AM. Linear IC regulators contain built-in protection circuits which make them virtually immune to damage from either excessive load current or high operating temperature.
By Alix Loane. Motor. Published at Thursday, December 28th 2017, 16:31:25 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 Madeleine Catherine. Circuit. Published at Thursday, December 28th 2017, 09:59:36 AM. 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 Jessica Mireille. Circuit. Published at Thursday, December 28th 2017, 09:47:17 AM. 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 Valentine Sybille. Car Wiring. Published at Thursday, December 28th 2017, 08:06:34 AM. You can fold the bare wire end double to fill the terminal hole. Then solder the terminal and wire. Use shrink wrap to encase the connections. This serves two purposes, one to insulate the terminal and the other is to add support to the end of the wire so that it will be less likely to bend and break.
By Madeleine Catherine. Car Wiring. Published at Thursday, December 28th 2017, 04:52:06 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 Bertille Solange. Motor. Published at Thursday, December 28th 2017, 02:57:57 AM. There is a special consideration if the power supply will be at or near the maximum voltage rating of the drive. If the motor will be rapidly decelerating a large inertial load from a high speed, care has to be taken to absorb the returned energy. The energy stored in the momentum of the load must be removed during deceleration and be safely dissipated. Because of its efficiency, the drive has no means of dissipating this energy so it returns it to the power supply. In effect, instead of drawing current from the power supply, the drive becomes a source of current itself. This current may charge the power supply capacitor to destructive voltage levels.
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