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Kirt Blattenberger - RF Cafe WebmasterCopyright
1996 - 2016
Webmaster:
Kirt Blattenberger,
 BSEE - KB3UON

RF Cafe began life in 1996 as "RF Tools" in an AOL screen name web space totaling 2 MB. Its primary purpose was to provide me with ready access to commonly needed formulas and reference material while performing my work as an RF system and circuit design engineer. The Internet was still largely an unknown entity at the time and not much was available in the form of WYSIWYG ...

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RMS: Voltage & Average Power

In mathematics, the root mean square (abbreviated RMS or rms), also known as the quadratic mean, is a statistical measure of the magnitude of a varying quantity. It is especially useful when variates are positive and negative, e.g., sinusoids. It can be calculated for a series of discrete values or for a continuously varying function. The name comes from the fact that it is the square root of the mean of the squares of the values. - Wikipedia

 

General Equation for RMS Voltage:

RMS (effective) value of any periodic function with period T.

rms equation - RF Cafe

 

Average of Instantaneous Power:

 Average power equation formula - RF Cafe

 

RMS Equation for a Sine Wave:

RMS & Average Power equation formula - RF Cafe

RMS & Average Power equation formula - RF Cafe ,  ...for positive or negative half-cycle