PSpice Tutorial for the OrCAD PSpice Release 9.1 Student Version.pdf

The Simulation Program with Integrated Circuit Emphasis (SPICE) was first developed in the early 1970, and was written in the FORTRAN programming Language, intended to support the early data entry methods of this period.

Download links:

• Part I Introduction and DC Analysis.pdf (20 pages pdf file, 3.8 MB).
  This tutorial described the development of two typical simple circuit, first will demonstrate the ability to quickly compute voltage and current values, second will demonstrate the ability to compute time-dependant circuit response.
• Part II Transient Analysis.pdf (9 pages pdf file, 0.3 MB).
  This tutorial will demonstrate the ability to simulate circuit having time-dependent response.

from  http://www.onlinefreeebooks.net