Device for controlling unwanted motion of a spring-mounted vehicle. On an automobile, the springs act as a cushion between the axles and the body and reduce the shocks produced by a rough road surface. Since some combinations of road surface and car speed may result in excessive up-and-down motion of the car body, shock absorbers—which today are hydraulic devices that oppose both compression and stretching of the springs—slow down and reduce the magnitude of these vibratory motions. Seealso damping.
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A simple snubber comprising a small resistor (R) in series with a small capacitor (C) is often used. This combination can be used to suppress the rapid rise in voltage across a thyristor, preventing the erroneous turn-on of the thyristor; it does this by limiting the rate of rise in voltage (dV/dt) across the thyristor to a value which will not trigger it. Snubbers are also often used to prevent arcing across the contacts of relays and switches and the electrical interference and welding/sticking of the contacts that can occur. An appropriately-designed RC snubber can be used with either dc or ac loads. This sort of snubber is commonly used with inductive loads such as electric motors. The voltage across a capacitor cannot change instantaneously, so a decreasing transient current will flow through it for a small fraction of a second, allowing the voltage across the switch to increase more slowly. While the values can be optimised for the application, a 100 ohm resistor in series with a 100 nanofarad capacitor of appropriate voltage rating is usually effective. This type of snubber is often manufactured as a single component.
In ac circuits a rectifier diode snubber cannot be used; if a simple RC snubber is not adequate a more complex bidirectional snubber design must be used.
Patent Application Titled "Snubber Circuit and Method of Using Bipolar Junction Transistor in Snubber Circuit" under Review
Apr 03, 2013; By a News Reporter-Staff News Editor at Electronics Newsweekly -- According to news reporting originating from Washington, D.C.,...
NRC EVENT NOTIFICATION REPORT FOR MARCH 14: POTENTIAL DEFECT IN FAIRBANKS MORSE EMERGENCY DIESEL GENERATOR SNUBBER VALVE MATERIAL AND HEAT TREATMENT
Mar 14, 2008; The Nuclear Regulatory Commission issued the following notification received: Power Reactor Facility: PALISADESRegion: 3 State:...