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... an equilibrium position. Vibration is caused by the transfer or storage of qnergy within structures, resulting from the action of one or mbre forces. Vibration is often a by-product of an otherwise useful operation and is very diflicult to avoid. ...
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... and open the circuit to be able to remove faults and connect/disconnect objects and parts of electricity network. The circuit breaker is a part of the protection of the main components in the network, transformers and lines. The majority of the switching operations of a CB are normalload operations. ...
Alternating Current Circuits and Electromagnetic Waves
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... Light does refract upon entering the atmosphere, but only slightly, about half a degree. Although refraction will cause separation of colors because of frequency dependence of the index of refraction, refraction is not the cause of the red light at sunset. At midday, more blue light scatters away th ...
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... operational methods of the device and detailed technical data, advice as to data capture and analysis is also provided. Information relating to the installation and commission of the Windy Boy 5000 / 6000 should be taken from the installation instructions delivered with the device. The Windy Boy 500 ...
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Schmitt trigger



In electronics a Schmitt trigger is a comparator circuit with hysteresis implemented by applying positive feedback to the noninverting input of a comparator or differential amplifier. It is an active circuit which converts an analog input signal to a digital output signal. The circuit is named a ""trigger"" because the output retains its value until the input changes sufficiently to trigger a change. In the non-inverting configuration, when the input is higher than a chosen threshold, the output is high. When the input is below a different (lower) chosen threshold the output is low, and when the input is between the two levels the output retains its value. This dual threshold action is called hysteresis and implies that the Schmitt trigger possesses memory and can act as a bistable multivibrator (latch or flip-flop). There is a close relation between the two kinds of circuits: a Schmitt trigger can be converted into a latch and a latch can be converted into a Schmitt trigger.Schmitt trigger devices are typically used in signal conditioning applications to remove noise from signals used in digital circuits, particularly mechanical contact bounce. They are also used in closed loop negative feedback configurations to implement relaxation oscillators, used in function generators and switching power supplies.
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