The Extreme PSpice Workshop

Course Description:

The Extreme PSpice Workshop is intended for the experienced PSpice user who wants to know more about the intrinsic models in PSpice: diodes, BJTs, JFETs, and MOSFETs, more about Analog Behavioral Modeling, and more about Monte Carlo and Worst-Case analyses.

The class begins with a study of Analog Behavior Models. AtoD converters, laser diodes, relays, photosensors and other electronic components are presented along with their data sheets. A step-by-step procedure is presented to show how to create an analog behavioral model of each device.

The second day of the course examines the function of each of the Model Parameters of the intrinsic PSpice devices and shows how they affect I-V and C-V characteristics of the device. Each device is examined with an eye towards performing a Monte Carlo analysis and calls out the parameters necessary for this type of simulation.

The third day of class show students how to take what they have learned about intrinsic and behavioral models and use them in Monte Carlo analyses. Students learn how to perform Monte Carlo analyses with uniform, Gaussian, and User-Defined distributions. Students learn the difference between Monte Carlo and Worst-case analysis and when to use either. Students also learn how to use Goal Functions to measure and display critical engineering values.

The class assumes the student has a prior working knowledge of the PSpice (aka Allegro AMS) circuit simulator and Capture (aka Allegro Design Entry) schematic capture program. Students who attend the Extreme PSpice Workshop should have previously taken our introductory course (The PSpice Workshop) and may want to take our Advanced PSpice Workshop or have at least 3 years experience with PSpice.


Course Objectives:


Course Outline:

Analog Behavioral Modeling

A2D and D2A model
Relay model
Relay model w/properties
Laser Diode model
Laser Diode w/temperature
CDS Photosensor model

Adding Subcircuit and Primitive Models to PSpice

A2D Subcircuit Import
Diode Model Import
Parametric Analysis
Parametric Analysis (temp sweep)
Changing Resistor Template (temp sweep)

Monte Carlo and Worst-Case Analysis

Monte Carlo (determine element values)
Monte Carlo (with simple statistics)
Monte Carlo (adding power supply variation)
Monte Carlo (creating your own distribution)
Worst-Case Analysis
Worst-Case (sensitivity analysis)

Measurements (Goal Functions)

Writing your first Measurement function
Measurement functions of 2 or more arguments
Parametric Sweep Performance Analysis
Monte Carlo Performance Analysis
Plot Window Templates




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