Talk:Dissipation factor

message: A mechanical example could also be placed here using a spring, mass, and damper.
LSTech (talk) 16:08, 29 November 2008 (UTC)
thread_title:  Mechanical example 

message: How is the dissipation factor related to the Q factor?
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They are completely unrelated. Google it.
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D.F is not constant over temperature, especially ceramic capacitors can have huge variation. So, if Q of an RLC circuit is determined by the loss-making R in the capacitor, the Q of the RLC will be changing with the changing losses in the dielectric. In supply filtering of high power logic chips, this is used as a vital anti-resonance feature. "completely unrelated", my donkey. 90.64.48.197 (talk) 02:38, 7 March 2016 (UTC)
thread_title:  Q (quality) factor 

message: There is something wrong with this. According to other litterature I have studied the DF is R/X and not X/R
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Exactly, you are correct. DF should be R/X  —Preceding unsigned comment added by Hnhetian (talk • contribs) 18:26, 14 November 2008 (UTC)
thread_title:  Something wrong 

message: loss tangent in the case of capacitors can be modeled as \frac{G_p}{\omega C} = \frac{1}{\omega R_p C}, where R_p is the insulation resistance, which might be as large as 10,000M\Omega, thus has little effect on ESR. ESR might be as small as 0.3\Omega and can be approximated by R_s. ESR and Quality Factor are directly related by Q = \frac{1}{\omega R_s C}.  —Preceding unsigned comment added by 132.241.7.227 (talk) 21:24, 4 December 2008 (UTC)
thread_title:  something  wrong  

message: Isn't it correct to say that the DF is the ratio of energy dissipated to energy retained per cycle of an oscillation? The lede currently has "a measure of loss-rate of power" which is more vague (and therefore less useful but more likely to be true!).IanOfNorwich (talk) 17:06, 1 March 2011 (UTC)
replies: text: The verbal construction a measure of is not the same as definition of.  The metre is a measure of distance, but distance is not the definition of the metre. SpinningSpark 17:36, 1 March 2011 (UTC)
thread_title:  Ratio 

message: The Series resistor has not to do with DF. In a real cap ESR exist but even an parallel resistance and DF is a measure of power in that resistance and not in ESR. ESR doesn't make any power loss in term of DF due to DFs definition. Def from Coombs ed.6th p.8.13 "The ratio of the total power loss in the material to the product of the voltage and current in a capacitor in which the material is a dielectric."  — Preceding unsigned comment added by 130.240.172.121 (talk) 18:25, 23 October 2012 (UTC)
thread_title:  Wrong model 

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