![]() ![]() All rights reserved. Copyright (c) 1985-1991 The Regents of the University of California.This User's Guide is based on text in the Version 3f User's Manual: APPENDIX D: SPICE3 HISTORY SUBSTITUTION.APPENDIX C: SPICE2 NONLINEAR DEPENDENT SOURCES.VCVS: Linear Voltage Controlled Voltage Source VCCS: Linear Voltage Controlled Current Source ![]() MOS6: Level 6 MOSFET Model with Meyer Capacitance MOS3: Level 3 MOSFET Model with Meyer Capacitance MOS2: Level 2 MOSFET Model with Meyer Capacitance MOS1: Level 1 MOSFET Model with Meyer Capacitance CCVS: Linear Current Controlled Voltage Source CCCS: Linear Current Controlled Current Source BSIM2: Berkeley Short Channel IGFET Model BSIM1: Berkeley Short Channel IGFET Model ![]() ASRC: Arbitrary Source (Non-linear Dependent Source) APPENDIX B: MODEL AND DEVICE PARAMETERS LTspice is a powerful, fast, and free SPICE simulator software, schematic capture and waveform viewer with enhancements and models for improving the simulation.Xgraph: use the xgraph(1) program for plotting. Where: Identify troublesome node or device Transpose: Swap the elements in a multi-dimensional Srandom: Set seed for random number generation Setscale: Set the scale vector for current plot Setplot: Switch the current set of vectors Resume*: Continue a simulation after a stop Reshape: Alter the dimensionality or dimensions of Listing*: Print a listing of the current circuit Linearize*: Interpolate to a linear scale Jobs: List active asynchronous spice runs Hardcopy: Save a plot to a file for printing Disto*: Perform a small-signal distortion analysis Asciiplot: Plot values using old-style character Alter*: Change a device or model parameter Ac*: Perform an AC, small-signal frequency response 4.4.4.FOUR: Fourier Analysis of Transient Analysis Output.4.3.7.SENS: DC or Small-Signal AC Sensitivity Analysis.4.2.1.NODESET: Specify Initial Node Voltage Guesses.Junction Field-Effect Transistors (JFETs) 3.3.6.2 Simple Coupled Multiconductor Model (CPL).3.3.6.1 Simple Lossy Transmission Model (TXL).Linear Current-Controlled Voltage Sources Linear Current-Controlled Current Sources Linear Voltage-Controlled Voltage Sources Linear Voltage-Controlled Current Sources For example: the memory leaks that affected Spice 3f4 have been cured new algorithms have been developed to facilitate the simulation of large circuits, and to reduce simulation time MacSpice provides a robust multi-parameter optimizer and facilities for inter-process communication with other applications. It is compatible with Berkeley Spice 3f5 but incorporates many improvements - from simple bug-fixes to entirely new commands, algorithms and solution strategies. MacSpice 3.2 runs natively on Mac computers with 64-bit Intel or Apple silicon processors. The high quality of the MacSpice command interpreter makes the automation of tasks straightforward. MacSpice then builds a numerical model of the circuit and analyses this.Ī command interpreter (shell) is used to specify the types of analyses that are required and how the results should be processed, saved or displayed. Users may prepare netlists with a text editor, or derive them from a circuit diagram using a third-party schematic-capture application. This is a list of components and the nodes they connect to. MacSpice uses a text-file 'netlist' description of the circuit as input. It is usually cheaper and quicker to simulate a design than to build a prototype. Circuit simulation is a way of building and testing virtual models of electronic devices. MacSpice is an electronic circuit simulator. ![]()
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