ABSTRACT

The entire description of an input file must fit into RAM during the analysis. However, the analysis results are not stored in RAM. The size of an input file can be found by using the ACCT option in the.OPTIONS statement and looking at the MEMUSE number printed at the end of runs that terminate successfully. PSPICE1.EXE will read all the circuits in the input file and process them in sequence. The output file will contain the outputs from each circuit in the same order as they appear in the input file. A large output file will be generated if an input file is run with several circuits, or for several temperatures, or with sensitivity analysis. PSpice uses iterative algorithms. These algorithms start with a set of node voltages, and each iteration calculates a new set, which is expected to be closer to a solution of Kirchhoff’s voltage and current laws.