By Alix Loane. Motor. Publised at Friday, December 29th 2017, 20:40:03 PM. In the previous section it was shown that motor torque varies inversely with speed. This then is the motor’s natural speed-torque curve. Below a certain speed, called the corner speed, current would rise above the motor’s rated current, ultimately to destructive levels as the motor’s speed is reduced further.
By Bertille Solange. Motor. Publised at Monday, January 01st 2018, 05:05:03 AM. It is recommended the motor current always be set at the rated value also to get the best microstep smoothness. Setting the current higher degrades the linearity of the motor and causes microstep bunching and attendant low-speed vibration.
By Bertille Solange. Amplifier. Published at Monday, December 25th 2017, 06:04:45 AM. At this point all three grounds are joined. We have avoided mixing power and signal in ground returns within the equipment and established the chassis as a combination shock protective device and EMI shield.
By Valentine Sybille. Circuit. Published at Monday, December 25th 2017, 05:39:30 AM. If the components are connected in a parallel format they would be termed to be a parallel series. In this sort of a connection all the components would receive the same voltage, while the current would be divided amongst the components.
By Valentine Sybille. Amplifier. Published at Monday, December 25th 2017, 05:18:44 AM. Then the lower part of the output waveform which is below this 0.7v window will not be reproduced accurately resulting in a distorted area of the output waveform as one transistor turns “OFF” waiting for the other to turn back “ON”. The result is that there is a small part of the output waveform at the zero voltage cross over point which will be distorted. This type of distortion is called Crossover Distortion and is looked at later on in this section.
By Alix Loane. Diagram. Published at Monday, December 25th 2017, 03:55:15 AM. If there’s something on a schematic that just doesn’t make sense, try finding a datasheet for the most important component. Usually the component doing the most work on a circuit is an integrated circuit, like a microcontroller or sensor. These are usually the largest component, oft-located at the center of the schematic.
By Alix Loane. Circuit. Published at Monday, December 25th 2017, 03:27:19 AM. Electronic signals are represented either by voltage or current. The timedependent characteristics of voltage or current signals can take a number of forms including DC, sinusoidal (also known as AC), square wave, linear ramps, and pulsewidth modulated signals. Sinusoidal signals are perhaps the most important signal forms since once the circuit response to sinusoidal signals are known, the result can be generalized to predict how the circuit will respond to a much greater variety of signals using the mathematical tools of Fourier and Laplace transforms.
By Madeleine Catherine. Circuit. Published at Monday, December 25th 2017, 02:34:45 AM. The concept of complex impedance introduces a unified representation for resistors, capacitors, and inductors, whereby a circuit’s frequency response from input to output can be determined using KVL and KCL, where each element is assigned the appropriate impedance. The key assumption to this point is that the input to the circuit must consist solely of DC and/or sinusoidal signals. Now, this analysis is be extended to include arbitrary input signals by using the mathematical techniques of Laplace transforms.
By Lydie Honorine. Circuit. Published at Monday, December 25th 2017, 02:27:56 AM. Most electronic circuits can be represented as a system with an input and an output. The input signal is typically a voltage that is generated by a sensor or by another circuit. The output signal is also
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