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Model Kind
General
Model Sub-Kind
Spice Subcircuit
SPICE Prefix
X
Model Name
ABSV
SPICE Netlist Template Format
@DESIGNATOR %1 %2 @MODEL
Parameters (definable at component level)
None
Notes
The content of the sub-circuit file (ABSV.ckt) associated with this model is shown below. The formula/equation used to provide this function is declared as part of the netlist-specific entry, under the .SUBCKT line of the file.
*Absolute value of Voltage
.SUBCKT ABSV 1 2
BX 2 0 V=ABS(V(1))
.ENDS ABSV
Examples
Consider the circuit in the image above. With respect to the ABSV component, the entries in the SPICE netlist will be:
*Schematic Netlist:
XM1 IN OUT ABSV
.
.
*Models and Subcircuit:
.SUBCKT ABSV 1 2
BX 2 0 V=ABS(V(1))
.ENDS ABSV
The effect of the function can be seen in the resultant waveforms obtained by running a transient analysis of the circuit:
Links
Absolute Value of Voltage (Differential Input)