Form factor (electronics): Difference between revisions

Revision as of 09:04, 16 March 2013

Revision as of 12:20, 25 November 2013

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== Specific form factors ==

<math>a</math> represents the amplitude of the function, and any other coefficients applied in the vertical dimension. For example, <math>8sin(at)</math> can be analyzed as <math>f(t) = a*sin(t), a = 8</math>. As both RMS and ARV are directly proportional to it, it has no effect on the form factor, and can be replaced with a normalized 1 for calculating that value.

<math>D = \frac{\tau}{T}</math> is the [[duty cycle]], the ratio of the "pulse" time <math>\tau</math> (when the function's value is not zero) to the full wave [[Periodic function|period]] <math>T</math>. Most basic wave functions only achieve 0 for infinitely short instants, and can thus be considered as having <math>\tau = T, D = 1</math>. However, any of the non-pulsing functions below can be appended with <math>\frac{\sqrt{D}}{D} = \frac{1}{\sqrt{D}} = \sqrt{\frac{T}{\tau}}</math>