Driver Electrical equivalent circuit to design xover

[andy2]

Anyone knows a website or documention to calculate an electrical equivalent circuit? I need to design some xovers but I don't have the design software.

I just need the equivalent circuit to calculate 3db point ... and so on.

[Svante]

Is this what you need? Mm is Mms, Cm is Cms and Rm is Rms.



Also note that Le usually doesn't behave exactly like a normal inductance.

[andy2]

Thanks. I'll try that.

[andy2]

Svante,

On the schematic, Mm is inductance and Cm is capacitance, correct?

[Svante]

Originally posted by andy2
Svante,

On the schematic, Mm is inductance and Cm is capacitance, correct?

Nope. The mass (Mms) appears on the electrical side as a capacitance with the value Mms/(Bl)^2, and the suspension compliance (Cms) as an inductance (Bl)^2*Cms.

I understand the confusion, since mass is drawn as inductance and compliance as capacitance when using impedance analogies of the mechanical system. But seen from the electrical side, that is what happens (the motor converts the mechanical impedance to its dual network, ie the motor can be seen as a gyrator).

[Aucosticraft]

Thanks

[Aucosticraft]

If this forum is still replied. then just conform.
Mms/(Bl)^2 = Capacitance in farad ( and not like mfd or else)

(Bl)^2*Cms = will give value in henry ( not uh or mh).

[aczern]

http://www.wavecor.com/Transducer_eq...nt_circuit.pdf

[Aucosticraft]

Thanks aczern