True Power Factor and Spice

Thread Starter

Endamame

Joined Apr 5, 2009
1
Let me introduce myself. I am doing a project analyzing power supply performance using LTSpice. Specifically I need to determine the quantity True Power factor. I am trying to figure how to use spice to calculate this.

True Power factor consists of 2 components. Displacement PF multiplied by Distortion PF. Displacement PF is easily to calculate but I can figure out how to do Distortion PF.

The formula for distortion PF = I(1)_RMS / I(T)_RMS

where I(1)_RMS is the RMS of the fundamental harmonic of the current
where I(T)_RMS is the RMS of the total current

http://users.ece.utexas.edu/~grady/POWERFAC.pdf

I would appreciate any help ...

Thanks

Frank
 
Top