I am trying to put the following equation onto my voltage source on LTSpice to get the same waveform. The waveforms and equations are attached
Electronic – How to model an EFT Surge wave equation on voltage source with LTSpice
ltspice
Related Solutions
Yes. Read this. You use a thing called an arbitrary source.
http://ltwiki.org/LTspiceHelp/LTspiceHelp/B_Arbitrary_behavioral_voltage_or_current_sources_.htm
Use the behavioral voltage source and apply the white() function there. Hit F2, then look for "bv" as the item in the dialog box. Drop that puppy down on the schematic. Do NOT use the regular voltage source for this.
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Best Answer
Insert an arbitrary behavioral voltage source, or
BVcomponent. Right-click it and set itsValueparameter toV=A*Vp*(1-exp(-time/tau1))*exp(-time/tau2). Insert a SPICE command somewhere in your schematic that reads.param Vp=1, A=1.037, tau1=407.4n, tau2=68.22u. Run a 100μs simulation. For the current, do similar but with an arbitrary behavioral current source, orBIcomponent.One thing to note: LTspice doesn't have a good idea where to set the time steps for transient simulations with behavioral sources, so you may need to customize the
Maximum Timestepparameter in your transient simulation command by reducing it to an appropriate value.