Contour Network Designer / Calculator Help
A contour network is used to correct a rising frequency response
from a driver. There are two types of contour networks. The first
is a
RL (Resistor & Inductor) network that is used when
the response is
rising as the frequency
increases. The other
network is a
RC (Resistor & Capacitor) network for drivers
whose response is
rising as the frequency
decreases.
The contour network formulas are not exact. They should only be
used as starting point for designing a contour network. With the proper
test equipment and trial and error you will be able to find the right
component values for your network.
The following formulas are for both types of networks.
In some cases, different derivations of the same formula are given.
In the reading material I have available, the formulas provided were
to find Z and At given R, X, & Rd. From this, I created the formulas to
find Z and R given At, Rd, & X.
f = Frequency where repsonse starts in increase in Hz
fm = Frequency where response is at its peak in Hz
At = Attenuation, increase in db from f to fm
Rd = Total Driver Impedance including all circuits in Ohms
|
Other variables
X = Component (L or C) reactance at fm
Z = Total circuit impedance in Ohms
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