What is LTspice? Rewrite of Berkeley SPICE 3F4/5 Reduced address calculation and function calling overhead Improved timestep control and numerical methods Enhanced integration methods and convergence improvements Alternate solver/SPARSE matrix package 1000× more accurate Circuit size limited by computer memory Added/Enhanced semiconductor models Diode recombination current JFET impact ionization current BJT quasi-saturation VBIC Binned BSIM3v3.2.4, BSIM4.4.0, BSIMSOI3.2 VDMOS (a new vertical double diffused MOSFET for power MOS) EKV 2.6 5 / © Dr. thesis is the user guide) 1983 SPICE 2G6 1985 SPSPICE 3F4 1996 µPower SwitcherCAD (simulation based) 1999 LTspice/SwitcherCAD III (SPICE based) 2004 500,000 base LTspice downloads 2009 LTspice IV (multi-processor), > 1 million downloadsĤ / © Dr. What is spice? 1972 SPICE 1 (Simulation Program with Integrated Circuit Emphasis) 1975 SPICE 2 (L. Ltspice ac source netlist simulator#What is the purpose of this presentation? To introduce/familiarize you with LTspice (spice) Many already familiar with PSpice w/Schematics or Multisim Demonstrate simulator capabilities that might be of use to your work Even crude analyses in early design stages are beneficial Laboratory pre-labs can be performed using a simulator Most homework assignments can be validated using a simulator Open dialogue in the general area of modeling/simulation My purpose is NOT to sell/promote Linear Tech ICs I do not own LTC stockģ / © Dr. ![]() Vahe Caliskan / November 9, 2011Īgenda Purpose of Presentation What is spice? What is LTspice? What can LTspice do for me? LTspice features / Running LTspice / User Interface LTspice Analyses DC Operating Point and DC Sweep Analysis Transient Analysis, Fourier, FFT AC Small-Signal Analysis Parameter Sweep Analysis Monte-Carlo & Worst-Case Analysis Incorporating 3rd Party information (models, subcircuits) Implementing Hierarchies Questions / CommentsĢ / © Dr. ![]() Vahe Caliskan Department of Electrical and Computer Engineering ġ / © Dr.
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