LTspice is a high performance SPICE simulator that simplifies the design of switching regulators. The software is provided free by Analog Devices. LTspice includes a library of models for a limited number of Coilcraft inductors. These models are included in the standard inductor library file and are updated periodically.
Coilcraft has created a set of advanced frequency dependent and time domain (impedance) models for modelling the small signal response of inductors. These models are based on the same schematic, element values, and coefficients for variable elements which are provided in our SPICE model documents for each inductor series. We have also developed saturation models for our soft-saturating inductors.
To include the advanced library copy the lib folder from the CoilcraftLTAdvLib.zip file to C:\Users\Documents\LTspiceXVII The folder may have a different name or path depending on the version installed. See below for more detailed instructions.
|CoilcraftLTAdvLib.zip||Includes all Coilcraft power and RF inductors for small signal AC analysis.|
Im(V(n001)/Ix(U1:1))/(2*pi*frequency)To plot Impedance vs frequency (best viewed in Bode Logarithmic form):
V(n001)/Ix(U1:1)To plot ESR vs frequency (best viewed Bode Logarithmic form):
Re(V(n001)/Ix(U1:1))To plot Q factor vs frequency (best viewed in Cartesian form):
ABS(Im(V(n001)/Ix(U1:1))/Re(V(n001)/Ix(U1:1)))*note voltage node names may be different. It is up to user to ensure voltage nodes are across the inductor.