pspice introduction

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PSPICE- PSPICE- Introduction Introduction PRESENTED BY: Akshay Dhole Akshay Dhole Mechatronics (SMBS) Mechatronics (SMBS) 13mmt1013 13mmt1013 Course faculty Dr. M. K. Chakravarthi Dr. M. K. Chakravarthi

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Page 1: Pspice Introduction

PSPICE- IntroductionPSPICE- Introduction

PRESENTED BY:Akshay DholeAkshay Dhole

Mechatronics (SMBS)Mechatronics (SMBS)13mmt101313mmt1013

Course facultyDr. M. K. ChakravarthiDr. M. K. Chakravarthi

Page 2: Pspice Introduction

IndexIndex1. Introduction2. Types of analysis3. Circuit components4. File structures5. Libraries6. Parts7. Design structure8. Design example 9. Results10.Conclusion

Page 3: Pspice Introduction

IntroductionIntroduction• SPICE (Simulation Program for Integrated

Circuits Emphasis) is a general purpose analog circuit simulator that is used to verify circuit designs and to predict the circuit behavior.

• PSpice is a PC version of SPICE and HSpice is a version that runs on workstations and larger computers.

• PSpice has analog and digital libraries of standard components (such as NAND, NOR, flip-flops, and other digital gates, op amps, etc) which makes it a useful tool for a wide range of analog and digital applications.

Page 4: Pspice Introduction

Types of AnalysisTypes of Analysis• Non-linear DC analysis• Non-linear transient analysis• Linear AC Analysis• Noise analysis • Sensitivity analysis • Distortion analysis • Fourier analysis• Monte Carlo Analysis

Page 5: Pspice Introduction

Circuit ComponentsCircuit Components• Independent and dependent voltage and current sources • Resistors • Capacitors • Inductors • Mutual inductors • Transmission lines • Operational amplifiers • Switches • Diodes • Bipolar transistors • MOS transistors • JFET • MESFET • Digital gates

Page 6: Pspice Introduction

Terminologies Terminologies • Subcircuit: A subcircuit allows you to define a

collection of elements as a subcircuit (e.g. an operational amplifier) and to insert this description into the overall circuit.

• EDIF: Electronic Design Interchange Format, a standard published by EIA. Usually used for netlists.

Page 7: Pspice Introduction

File structure PSPICE File structure PSPICE (Capture)(Capture)

• Input file for PSpice that has the file type “.CIR” • When a circuit is simulated “.OUT” is generated• “*.DAT” file is by default a binary file to see the

data • “*.LIB” files where the details of complex parts

are saved• Additional files

o *.SCH (the schematic data, itself)o *.ALS (alias files)o *.NET (network connection files)

Page 8: Pspice Introduction

LibrariesLibraries• These are files that contain reusable part data.• They can be custom or default ones• Some of the libraries available in the Evaluation

version of PSPICE are: o abm.slb for special functions like square root and

multipliers o analog.slb for analog components like resistors and

capacitors o breakout.slb for pots o connect.slb, .plb for connectors o eval.slb, .plb for semiconductor, digital devices, switches o port.slb for grounds, high/low digital ports o special.slb for ammeters, viewpoints o source.slb for various analog and digital sources

Page 9: Pspice Introduction

PartsParts• Part is a basic building block which may represent

o One or more physical elemento Functiono Simulation modelo When a part is placed for first time its entry is done in “Design Cache”

What is “Design Cache”????... Go and Find Out Yourself

Page 10: Pspice Introduction

Design StructureDesign Structure• Flat Design

o Small designso All pages in same schematico Off Page connectors are

usedo Figure shows design hierarchy

Page 11: Pspice Introduction

• Hierarchical Designo Much complex designso Symbols are created called “Hierarchical Blocks”

Page 12: Pspice Introduction

Things to remember Things to remember before startingbefore starting

• PSpice is not case sensitive • All element names must be unique • There must be a node designated "0" (Zero). This

is the reference node against which all voltages are calculated.

• If any change is made in circuit make sure you create netlist again before simulating it.

Page 13: Pspice Introduction

Getting StartedGetting Started• File New Project Analog or Mixed A/D

Make sure to choose Analog or Mixed A/D and proper location for project

Page 14: Pspice Introduction

• Next comes following window

Make sure you select “Create a blank project”

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• This is how a typical “Schematic” Window will look like

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• Now start placing components and connecting them (this part is quite similar to what you have done in last semester’s lab)

Add a library as per the Requirement for eg. here analog library has been added

Page 17: Pspice Introduction

• After completing the circuit save it and run it.• Plot appropriate waveform by probing on circuit.

Page 18: Pspice Introduction

Design ExampleDesign Example• Take example of a high pass filter (RC)• First we will follow initial steps of creating a new

project • Now placing the components.

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Place the componentsPlace the components

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Place the source and Place the source and groundground

Page 21: Pspice Introduction

Add ProbeAdd Probe

Probes

Page 22: Pspice Introduction

Creating new Creating new simulation profilesimulation profile

• Go to PSPICE New Simulation Profile • Give a name to profile and create

Page 23: Pspice Introduction

AC AnalysisAC Analysis• We can choose any of the analysis and options• Here AC analysis is done to see operation of filter

Page 24: Pspice Introduction

Run Run • Go to PSPICE Run• Another waveform window will come up

Windowto keep track of current simulation

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ResultResult

Page 26: Pspice Introduction

ConclusionConclusion• Thus we have learn the basics of P-Spice software

and it’s functioning theoretically.

• Its easy and simple software for simulations and analysis of the circuits.

Page 27: Pspice Introduction

Thank you