Rise time
Time taken by a signal to change to a high value / From Wikipedia, the free encyclopedia
Dear Wikiwand AI, let's keep it short by simply answering these key questions:
Can you list the top facts and stats about Transition time?
Summarize this article for a 10 year old
In electronics, when describing a voltage or current step function, rise time is the time taken by a signal to change from a specified low value to a specified high value.[1] These values may be expressed as ratios[2] or, equivalently, as percentages[3] with respect to a given reference value. In analog electronics and digital electronics[citation needed], these percentages are commonly the 10% and 90% (or equivalently 0.1 and 0.9) of the output step height:[4] however, other values are commonly used.[5] For applications in control theory, according to Levine (1996, p. 158), rise time is defined as "the time required for the response to rise from x% to y% of its final value", with 0% to 100% rise time common for overdamped second order systems, 5% to 95% for critically damped and 10% to 90% for underdamped ones.[6] According to Orwiler (1969, p. 22), the term "rise time" applies to either positive or negative step response, even if a displayed negative excursion is popularly termed fall time.[7]