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Thank you albbg
I understood your derivation of second equation. But I'm sure that square root is within the sum. I tried to put out the square root and recalculate, but the results don´t match.
If the peak amplitude of a given frequency is 2/N*sqrt[re(V)^2+im(V)^2], the sum of terms should not...
Hi FvM, I don´t know what´s the reasoning for the second one, this is the problem.
But when I use a vector of a signal which I created in Excel, so with known values, I calculate the right value of Vrms with the second equation.
Hi
I want to calculate the RMS Voltage from a FFT of a signal sampling.
I found several sources which show the following equation:
\[Vrms = \sqrt{\sum_{k = 0}^{N/2} {(V^2re(k)+V^2im(k))}}\]
Where:
N = number of samples;
Vre(k) = are real parts of kth harmonics of voltage;
Vim(k) = are...
I need convert a Orcad schematic to PCAD, but I don´t have a Orcad license to export with DXF format. There are another form to convert the schematic?
It´s a schematic of the reference design:
**broken link removed**
If there is no way I convert this schematic, I´d be grateful if someone with...
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