Jul 22, 2009 12:55
14 yrs ago
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English term
derating
GBK
English to Swedish
Tech/Engineering
Electronics / Elect Eng
Definition from
Martek Power Abbott, Inc.:
Reducing one operating parameter to compensate for changes in other parameters to maintain reliability. For example, the reduction in output power at elevated temperatures.
Example sentences:
Two things can be inferred from these ratings: the maximum storage temperature is equal to the derated temperature. Also, the slope of the derating can be used to calculate an equivalent thermal resistance in degrees C per watt. The difference between the no-load and maximum full load temperature is less than or equal to the temperature rise at full load. (P-N Designs, Inc.)
Most dc/c manufacturers have design-derating guidelines, but sometimes designers use guidelines they have developed themselves. As engineers, we derate components to improve their reliability by decreasing component stress. (Hearst Business Communications, Inc)
A derating chart is often used, with derating starting at 70oC. Since parameters are application dependent, power de-rating curves or charts should be considered general rather than absolute, and only used as a guideline. (interfacebus.com)
Change log
Jul 22, 2009 12:53: changed "Kudoz queue" from "In queue" to "Public"
Jul 22, 2009 12:55: changed "Stage" from "Preparation" to "Submission"
Jul 25, 2009 13:54: changed "Stage" from "Submission" to "Selection"
Aug 1, 2009 17:32: Enrique Cavalitto
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