cv 05 ssaeo introducing slps

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Introducing SLPSThis chapter introduces the PSpice SLPS interface and lists the requirements to run

SLPS:

Introducing the PSpice SLPS Interface

Requirements for PSpice SLPS Interface

Introducing the PSpice SLPS InterfacePSpice SLPS Interface is an interface tool that links PSpice to the MATLAB

modeling tool and also to Simulink system simulator pro!ided "y The Math#orks$ This

interface tool has "een de!eloped in partnership #ith %y"ernet Systems %o Ltd$

PSpice is a SPI%&'"ased simulator used for simulating electrical and electronic circuits

and The Math#orks tools are used for system designing$ PSpice SLPS interface

integrates these t#o simulators to pro!ide a simulation flo# that can "e used to design

any kind of system #ith electronic su"'systems$

%ircuits #ith PSpice models can no# "e included in system model$ PSpice

SLPS Interface allo#s users to su"stitute electronic "locks in PSpice #hile the rest ofthe design is simulated using MATLAB or Simulink$ As a result you can no# use a

single prototype to co'simulate the electrical and mechanical systems$ %o'simulation

en!ironment allo#s to simulate #hole system #ith more realistic element models

"efore trial manufacturing$

Requirements for PSpice SLPS InterfaceTo "e a"le to use PSpice SLPS Interface you need to acquire SLPS license from

%adence and should ha!e the follo#ing com"ination of The Math#orks and (r%A)

products installed on your system:

The Math#orks products *R+, or higher-a$ MATLAB .$/ ' 0$1

"$ Simulink /$2 ' .$.

Note: SLPS does not support 64-bit MALA!$ %adence (r%A) products *R+.$2 or later- or %adence Allegro products *R+.$2 or later-

Install one of the follo#ing schematic designer tools:

a$ %apture

"$ %apture %IS

c$ Allegro )esign &ntry %IS

d$ Allegro )esign &ntry 3)L

Install one of the follo#ing simulators:

a$ PSpice A4)

"$ AMS Simulator

Instead of a"o!e t#o products you can also install one of the follo#ing 5nison

products:

a$ 5nison &&

"$ 5nison 5ltra

Note: SLPS 6$7 does not #ork #ith (r%A) R+/$0 or lo#er$

To set up PSpice SLPS you need to set the SLPS path to the PSpice installation under

MATLAB$

Set the SLPS path as 8%adence9Installation;tools;pspice;slps$


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run the 8%adence9installation;tools;pspice;slps;slpssetup$p file from MATLAB to setup the

SLPS path$

The SLPS demonstrations and e=ample files are a!aila"le from

8%adence9installation;tools;pspice;capture9samples;SLPSdemos and

8%adence9installation;tools;pspice;concept9samples;SLPSdemos$

"reating a Schematic

This chapter e=plains ho# to create and edit a schematic using either (r%A) %apture or

Allegro )esign &ntry 3)L simulate the schematic using PSpice and then create and

setup a "lock diagram using MATLAB:

%reating a schematic

5sing PSpice A4) to Simulate Schematic

%reating and Setting 5p a Block )iagram 5sing MATLAB

"reating a schematic >ou can use either (r%A) %apture or Allegro )esign &ntry 3)L to create and editschematics$ (r%A) %apture is a schematic design tool set for the ?indo#s

en!ironment$ ?ith %apture you can draft schematics and produce connecti!ity and

simulation information for printed circuit "oards and programma"le logic designs$

)esign &ntry 3)L helps you capture the design of a Printed %ircuit Board *P%B- in the

schematic

form$ )esign &ntry 3)L organi@es schematic information into pages$ It captures and

displays only

one page of schematic information at a time$ )esign &ntry 3)L is a "y'reference editor

"ecause

it references all parts in the schematic from !arious li"raries that reside at the referenceor local

area$ To kno# more a"out )esign &ntry 3)L refer to theAllegro Design Entry HDL

User Guide$

SLPS uses files created #ith (r%A) %apture and Allegro )esign &ntry 3)L so you cannot

directly assign net lists created #ith applications other than %apture or )esign &ntry 3)L$

But you can use %apture to con!ert a SPI%& net list to a sym"ol and incorporate it into a

circuit$ After inserting the sym"oli@ed net list into a circuit perform transient analysis

#ith PSpice and then assign it to SLPS$ Refer to to the chapter )esigning for other &)A

applications of the online (r%A) %apture 5sers uide on ho# to incorporate a SPI%&

netlist into a circuit$ Refer to the Transient analysis chapter of the online PSpice 5sers

uide on ho# to perform transient analysis using PSpice$The follo#ing section e=plains ho# to create schematics$

#sing $r"A% "apture>ou need to perform the follo#ing steps to create a schematic using %apture:

+$ %reate a proCect in (r%A) %apture

6$ %reate the schematic

>ou #ill use the De# ProCect dialog "o= as sho#n in the


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>ou can enter the name of the proCect in the Dame te=t "o=$ >ou can also select the

purpose of the

ne# proCect from the options under %reate De# ProCect 5sing$ The Location te=t "o=

allo#s you to

specify a #ork directory to sa!e your files$

Perform the follo#ing steps to create a ne# proCect:

+$ Start (r%A) %apture

6$ %hoose


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&igure '-' "reate PSpice Pro(ect dia)og bo*

0$ Select %reate a Blank ProCect and click (E$

The proCect #indo# and schematic page is displayed as sho#n in ou ha!e created the proCect no# you can create a schematic$ %reate the circuit as

sho#n in


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&igure '-4 "ircuit ,ith M$S&. resistors. and /o)tage sources

The input signal of the circuit for !erifying operation is a 2$/F #ide +'shot pulse$

Attach the node name G(5TG to the drain node$ >ou #ill use this name to specify output

!oltage from the SLPS "lock later$


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"reating and Setting #p a !)oc0 %iagram #sing MALA!

In this section you #ill learn ho# to use MATLAB to create a "lock set SLPS "lock

parameters set up

Simulink analyses and simulate using "oth PSpice and Simulink$

"reating a !)oc0To create a "lock:

+$ Start MATLAB

6$ Set the current MATLAB directory to "e the #ork directory #here PSpice files

are sa!ed

#hich is c:;#ork for the e=ample in this chapter$

,$


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+$ Specify the repeating sequence parameters as sho#n in ou can place only one SLPS "lock in a single Simulink model$ If you #ant to incorporate

multiple circuits use %apture to create multiple circuit diagram pages #ithin a proCect and

connect all the data lines in the Simulink model #hich need to "e connected to the circuit

to a single SLPS "lock$

Do# that you ha!e created a "lock and sa!ed it you #ill specify the "lock parameters$

Setting #p !)oc0 Parameters
http://hi.baidu.com/fc/editor/slps_02.html#1039524http://hi.baidu.com/fc/editor/slps_02.html#1039524


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>ou #ill use the SLPS settings #indo# to specify the follo#ing "lock parameters:

the %apture proCect file

the input sources and outputs for the SLPS "lock

the PSpice data sa!ing options

)ou"le'click the SLPS "lock in the MATLAB command #indo# to open the SLPS

Settings#indo# as sho#n in


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proCect has only one file tran$cir$ Therefore it is selected automatically$

>ou can click the Select "utton under Input Sources to display the po#er sources in a

circuit in

the ID4(5T select dialog "o=$ >ou can then select the po#er source that you #ant to

designate

as the source for the SLPS "lock$ In this e=ample select the source H+$Note: At least one input must "e designated for SLPS "ut you may #ant to assign a

circuit

#ith only output to SLPS *i$e$ an oscillator-$ In this case create a dummy circuit *for

e=ample

#ith a po#er source and resistance- #ithin the circuit diagram page do not connect it

#ith the original

circuit and allocate some data to this po#er source$

To specify an output for the SLPS "lock click the Select "utton under (utputs$ In this

e=ample

select H*(5T- from the list displayed in the ID4(5T select dialog "o=$

After specifying the input sources and output you can specify data sa!ing options forPSPice in

the opt9settings dialog "o=$ To open the opt9settings dialog "o= click (ptions

Parameters in the

SLPS settings #indo#$ In this e=ample specify the PSpice )ata Sa!ing (ption as

Selection (nly$

If you select any option other than none from the PSpice)ata Sa!ing (ption list the

analysis speed #ill "e slo#er$ Therefore it is not recommended to change this option unless

you need it$

After completing the settings click (E to close the SLPS settings #indo#$ >ou can no#

set up Simulink

analyses$

Setting #p Simu)in0 Ana)3ses>ou can use the Simulation Parameters dialog "o= sho#n in


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&igure '-1' Simu)ation Parameters dia)og bo*

In the Simulation Parameters dialog specify the follo#ing parameters:

5nder Simulation time enter ,e'. *,usec- into the Stop time te=t "o=$

5nder Sol!er (ptions:

o In the Type list "o=es specify


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If you selected any option other than none in the PSpice)ata Sa!ing (ption in SLPS

settings

#indo# you can display the SLPS results using PSpiceA4)$ To display the SLPS

simulation

results in PSpice perform the follo#ing tasks:

+$


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cv 05 ssaeo introducing slps

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