Method

Desired ratio

Tolerances

Feedback (Rf/Ri)
Voltage divider [Rf/(Rf+Ri)]
Voltage divider, Ri/10 [Rf/(Rf+0.1*Ri)] (for ratios closer to 1)
Voltage divider, Ri*10 [Rf/(Rf+10*Ri)] (for ratios closer to 0)
f-3dB for R and C [1/(2*π*R*C)]
f-3dB for R and L [R/(2*π*L)]
fcenter for L and C [1/(2*π*sqrt(L*C))]
Normal display
Filter results
Desired ratio:
Show only 10% tolerances in rows ()
Show only 10% tolerances in columns ()

Display

Numbers past decimal place:
Background will be solid black if the percent error is greater than:
Background will be highlighted yellow if the percent error is less than:

Tips:

© 2006 Mark Rushakoff