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BSD 3.0
subroutine dcop
implicit double precision (a-h,o-z)
c
c
c this routine prints out the operating points of the nonlinear
c circuit elements.
c
common /tabinf/ ielmnt,isbckt,nsbckt,iunsat,nunsat,itemps,numtem,
1 isens,nsens,ifour,nfour,ifield,icode,idelim,icolum,insize,
2 junode,lsbkpt,numbkp,iorder,jmnode,iur,iuc,ilc,ilr,numoff,isr,
3 nmoffc,iseq,iseq1,neqn,nodevs,ndiag,iswap,iequa,macins,lvnim1,
4 lx0,lvn,lynl,lyu,lyl,lx1,lx2,lx3,lx4,lx5,lx6,lx7,ld0,ld1,ltd,
5 imynl,imvn,lcvn,loutpt,nsnod,nsmat,nsval,icnod,icmat,icval
common /cirdat/ locate(50),jelcnt(50),nunods,ncnods,numnod,nstop,
1 nut,nlt,nxtrm,ndist,ntlin,ibr,numvs
common /status/ omega,time,delta,delold(7),ag(7),vt,xni,egfet,
1 xmu,mode,modedc,icalc,initf,method,iord,maxord,noncon,iterno,
2 itemno,nosolv,ipostp,iscrch
common /knstnt/ twopi,xlog2,xlog10,root2,rad,boltz,charge,ctok,
1 gmin,reltol,abstol,vntol,trtol,chgtol,eps0,epssil,epsox
common /miscel/ atime,aprog(3),adate,atitle(10),defl,defw,defad,
1 defas,rstats(50),iwidth,lwidth,nopage
common /dc/ tcstar(2),tcstop(2),tcincr(2),icvflg,itcelm(2),kssop,
1 kinel,kidin,kovar,kidout
common /ac/ fstart,fstop,fincr,skw2,refprl,spw2,jacflg,idfreq,
1 inoise,nosprt,nosout,nosin,idist,idprt
common /blank/ value(1000)
integer nodplc(64)
complex*16 cvalue(32)
equivalence (value(1),nodplc(1),cvalue(1))
c
c
dimension optitl(4)
dimension anam(12),av1(12),ai1(12),req(12)
dimension amod(12),vd(12),cap(12)
dimension cb(12),cc(12),vbe(12),vbc(12),vce(12),rpi(12),
1 ro(12),cpi(12),cmu(12),betadc(12),betaac(12),ft(12),
2 ccs(12),cbx(12),rx(12)
dimension cg(12),vgs(12),vds(12),gds(12),vbs(12),cbd(12),cbs(12),
2 cgsov(12),cgdov(12),cgbov(12),vth(12),vdsat(12),cd(12),gm(12),
3 ccgg(12),ccgd(12),ccgs(12),ccbg(12),ccbd(12),ccbs(12),
4 gmb(12)
dimension cgs(12),cgd(12),cgb(12),cds(12)
equivalence(cb(1),cg(1)),(cc(1),vgs(1)),(vbe(1),vds(1)),
1(vbc(1),gds(1)),(vce(1),vbs(1)),(rpi(1),cbd(1)),
2(ro(1),cbs(1)),(cpi(1),cgsov(1)),(cmu(1),cgdov(1)),
3(betadc(1),cgbov(1)),(betaac(1),vth(1)),(ft(1),vdsat(1)),
4(ccs(1),cd(1)),(cbx(1),ccgg(1)),(rx(1),ccgd(1))
equivalence(vd(1),cg(1)),(cap(1),vgs(1)),(av1(1),vds(1)),
1 (ai1(1),gds(1)),(req(1),vbs(1))
equivalence (cgs(1),ccgg(1)),(cgd(1),ccgd(1)),(cgb(1),ccgs(1)),
1 (cds(1),ccbg(1))
dimension afmt1(3),afmt2(2),afmt3(3),afmt4(3)
data optitl / 8hoperatin, 8hg point , 8hinformat, 8hion /
data av,avd,avbe,avbc,avce,avgs,avds,avbs / 1hv,2hvd,3hvbe,3hvbc,
1 3hvce,3hvgs,3hvds,3hvbs /
data acntrv,acntri,asrcv,asrci,atrang,atranr,avgain,aigain /
1 8hv-contrl, 8hi-contrl, 8hv-source, 8hi-source,
2 8htrans-g , 8htrans-r , 8hv gain , 8hi gain /
data ai,aid,aib,aic,aig / 1hi,2hid,2hib,2hic,2hig /
data areq,arpi,aro / 3hreq,3hrpi,2hro /
data acap,acpi,acmu,acgs,acgd,acbd,acbs / 3hcap,3hcpi,3hcmu,3hcgs,
1 3hcgd,3hcbd,3hcbs /
data acgsov,acgdov,acgbov /6hcgsovl,6hcgdovl,6hcgbovl/
data accgg,accgd,accgs,accbg,accbd,accbs /7hdqgdvgb,7hdqgdvdb,
1 7hdqgdvsb,7hdqbdvgb,7hdqbdvdb,7hdqbdvsb/
data acgb,acds / 3hcgb,3hcds /
data avth, avdsat / 3hvth, 5hvdsat /
data agm,agds / 2hgm,3hgds /
data agmb / 4hgmb /
data accs,acbx,arx /3hccs,3hcbx,2hrx/
data abetad,abetaa / 6hbetadc,6hbetaac /
data aft / 2hft /
c
data ablnk /1h /
data afmt1 /8h(//1h0,1,8h0x, (2x,8h,a8)) /
data afmt2 /8h(1h ,a8,,8h f10.3)/
data afmt3 /8h(1h ,a8,,8h1p d10.,8h2) /
data afmt4 /8h('0model,8h ', (,8h2x,a8)) /
c
c.. fix-up the format statements
c
kntr=12
if(lwidth.le.80) kntr=7
ipos=12
call move(afmt1,ipos,ablnk,1,2)
call alfnum(kntr,afmt1,ipos)
ipos=9
call move(afmt2,ipos,ablnk,1,2)
call alfnum(kntr,afmt2,ipos)
ipos=11
call move(afmt3,ipos,ablnk,1,2)
call alfnum(kntr,afmt3,ipos)
ipos=14
call move(afmt4,ipos,ablnk,1,2)
call alfnum(kntr,afmt4,ipos)
c
c compute voltage source currents and power dissipation
c
call second(t1)
if ((mode.eq.1).and.(modedc.eq.2).and.(nosolv.ne.0)) go to 700
power=0.0d0
if (jelcnt(9).eq.0) go to 50
ititle=0
11 format (////5x,'voltage source currents'//5x,'name',
1 7x,'current'/)
loc=locate(9)
20 if (loc.eq.0) go to 50
locv=nodplc(loc+1)
iptr=nodplc(loc+6)
creal=value(lvnim1+iptr)
power=power-creal*value(locv+1)
if (ititle.eq.0) write (6,11)
ititle=1
write (6,21) value(locv),creal
21 format (/5x,a8,1x,1pd10.3)
30 loc=nodplc(loc)
go to 20
50 loc=locate(10)
60 if (loc.eq.0) go to 90
locv=nodplc(loc+1)
node1=nodplc(loc+2)
node2=nodplc(loc+3)
power=power-value(locv+1)
1 *(value(lvnim1+node1)-value(lvnim1+node2))
loc=nodplc(loc)
go to 60
90 write (6,91) power
91 format (//5x,'total power dissipation ',1pd9.2,' watts')
c
c small signal device parameters
c
numdev=jelcnt(5)+jelcnt(6)+jelcnt(7)+jelcnt(8)+jelcnt(11)
1 +jelcnt(12)+jelcnt(13)+jelcnt(14)
if (numdev.eq.0) go to 600
call title(0,lwidth,1,optitl)
kntlim=lwidth/11
c
c nonlinear voltage controlled current sources
c
if (jelcnt(5).eq.0) go to 175
ititle=0
111 format(1h0,/,'0**** voltage-controlled current sources')
loc=locate(5)
kntr=0
120 if (loc.eq.0) go to 140
kntr=kntr+1
locv=nodplc(loc+1)
loct=lx0+nodplc(loc+12)
anam(kntr)=value(locv)
ai1(kntr)=value(loct)
if (kntr.ge.kntlim) go to 150
130 loc=nodplc(loc)
go to 120
140 if (kntr.eq.0) go to 175
150 if (ititle.eq.0) write (6,111)
ititle=1
write (6,afmt1) (anam(i),i=1,kntr)
write (6,afmt3) asrci,(ai1(i),i=1,kntr)
kntr=0
if (loc.ne.0) go to 130
c
c nonlinear voltage controlled voltage sources
c
175 if (jelcnt(6).eq.0) go to 186
ititle=0
176 format(1h0,/,'0**** voltage-controlled voltage sources')
loc=locate(6)
kntr=0
178 if (loc.eq.0) go to 182
kntr=kntr+1
locv=nodplc(loc+1)
loct=lx0+nodplc(loc+13)
anam(kntr)=value(locv)
av1(kntr)=value(loct)
ai1(kntr)=value(loct+1)
if (kntr.ge.kntlim) go to 184
180 loc=nodplc(loc)
go to 178
182 if (kntr.eq.0) go to 186
184 if (ititle.eq.0) write (6,176)
ititle=1
write (6,afmt1) (anam(i),i=1,kntr)
write (6,afmt2) asrcv,(av1(i),i=1,kntr)
write (6,afmt3) asrci,(ai1(i),i=1,kntr)
kntr=0
if (loc.ne.0) go to 180
c
c nonlinear current controlled current sources
c
186 if (jelcnt(7).eq.0) go to 196
ititle=0
187 format(1h0,/,'0**** current-controlled current sources')
loc=locate(7)
kntr=0
188 if (loc.eq.0) go to 192
kntr=kntr+1
locv=nodplc(loc+1)
loct=lx0+nodplc(loc+12)
anam(kntr)=value(locv)
ai1(kntr)=value(loct)
if (kntr.ge.kntlim) go to 194
190 loc=nodplc(loc)
go to 188
192 if (kntr.eq.0) go to 196
194 if (ititle.eq.0) write (6,187)
ititle=1
write (6,afmt1) (anam(i),i=1,kntr)
write (6,afmt3) asrci,(ai1(i),i=1,kntr)
kntr=0
if (loc.ne.0) go to 190
c
c nonlinear current controlled voltage sources
c
196 if (jelcnt(8).eq.0) go to 210
ititle=0
197 format(1h0,/,'0**** current-controlled voltage sources')
loc=locate(8)
kntr=0
198 if (loc.eq.0) go to 202
kntr=kntr+1
locv=nodplc(loc+1)
loct=lx0+nodplc(loc+13)
anam(kntr)=value(locv)
av1(kntr)=value(loct)
ai1(kntr)=value(loct+1)
if (kntr.ge.kntlim) go to 204
200 loc=nodplc(loc)
go to 198
202 if (kntr.eq.0) go to 210
204 if (ititle.eq.0) write (6,197)
ititle=1
write (6,afmt1) (anam(i),i=1,kntr)
write (6,afmt2) asrcv,(av1(i),i=1,kntr)
write (6,afmt3) asrci,(ai1(i),i=1,kntr)
kntr=0
if (loc.ne.0) go to 200
c
c diodes
c
210 if (jelcnt(11).eq.0) go to 300
ititle=0
211 format(1h0,/,'0**** diodes')
loc=locate(11)
kntr=0
220 if (loc.eq.0) go to 240
kntr=kntr+1
locv=nodplc(loc+1)
node1=nodplc(loc+2)
node2=nodplc(loc+3)
locm=nodplc(loc+5)
locm=nodplc(locm+1)
loct=lx0+nodplc(loc+11)
anam(kntr)=value(locv)
amod(kntr)=value(locm)
cd(kntr)=value(loct+1)
vd(kntr)=value(lvnim1+node1)-value(lvnim1+node2)
if (modedc.ne.1) go to 225
req(kntr)=1.0d0/value(loct+2)
cap(kntr)=value(loct+4)
225 if (kntr.ge.kntlim) go to 250
230 loc=nodplc(loc)
go to 220
240 if (kntr.eq.0) go to 300
250 if (ititle.eq.0) write (6,211)
ititle=1
write (6,afmt1) (anam(i),i=1,kntr)
write (6,afmt4) (amod(i),i=1,kntr)
write (6,afmt3) aid,(cd(i),i=1,kntr)
write (6,afmt2) avd,(vd(i),i=1,kntr)
if (modedc.ne.1) go to 260
write (6,afmt3) areq,(req(i),i=1,kntr)
write (6,afmt3) acap,(cap(i),i=1,kntr)
260 kntr=0
if (loc.ne.0) go to 230
c
c bipolar junction transistors
c
300 if (jelcnt(12).eq.0) go to 400
ititle=0
301 format(1h0,/,'0**** bipolar junction transistors')
loc=locate(12)
kntr=0
320 if (loc.eq.0) go to 340
kntr=kntr+1
locv=nodplc(loc+1)
node1=nodplc(loc+2)
node2=nodplc(loc+3)
node3=nodplc(loc+4)
locm=nodplc(loc+8)
type=nodplc(locm+2)
locm=nodplc(locm+1)
loct=lx0+nodplc(loc+22)
anam(kntr)=value(locv)
amod(kntr)=value(locm)
cb(kntr)=type*value(loct+3)
cc(kntr)=type*value(loct+2)
vbe(kntr)=value(lvnim1+node2)-value(lvnim1+node3)
vbc(kntr)=value(lvnim1+node2)-value(lvnim1+node1)
vce(kntr)=vbe(kntr)-vbc(kntr)
betadc(kntr)=cc(kntr)/dsign(dmax1(dabs(cb(kntr)),1.0d-20),
1 cb(kntr))
if (modedc.ne.1) go to 325
rx(kntr)=0.0d0
if(value(loct+16).ne.0.0d0) rx(kntr)=1.0d0/value(loct+16)
ccs(kntr)=value(loct+13)
cbx(kntr)=value(loct+15)
rpi(kntr)=1.0d0/value(loct+4)
gm(kntr)=value(loct+6)
ro(kntr)=1.0d0/value(loct+7)
cpi(kntr)=value(loct+9)
cmu(kntr)=value(loct+11)
betaac(kntr)=gm(kntr)*rpi(kntr)
ft(kntr)=gm(kntr)/(twopi*dmax1(cpi(kntr)+cmu(kntr)+cbx(kntr),
1 1.0d-20))
325 if (kntr.ge.kntlim) go to 350
330 loc=nodplc(loc)
go to 320
340 if (kntr.eq.0) go to 400
350 if (ititle.eq.0) write (6,301)
ititle=1
write (6,afmt1) (anam(i),i=1,kntr)
write (6,afmt4) (amod(i),i=1,kntr)
write (6,afmt3) aib,(cb(i),i=1,kntr)
write (6,afmt3) aic,(cc(i),i=1,kntr)
write (6,afmt2) avbe,(vbe(i),i=1,kntr)
write (6,afmt2) avbc,(vbc(i),i=1,kntr)
write (6,afmt2) avce,(vce(i),i=1,kntr)
write (6,afmt2) abetad,(betadc(i),i=1,kntr)
if (modedc.ne.1) go to 360
write (6,afmt3) agm,(gm(i),i=1,kntr)
write (6,afmt3) arpi,(rpi(i),i=1,kntr)
write(6,afmt3) arx,(rx(i),i=1,kntr)
write (6,afmt3) aro,(ro(i),i=1,kntr)
write (6,afmt3) acpi,(cpi(i),i=1,kntr)
write (6,afmt3) acmu,(cmu(i),i=1,kntr)
write(6,afmt3) acbx,(cbx(i),i=1,kntr)
write(6,afmt3) accs,(ccs(i),i=1,kntr)
write (6,afmt2) abetaa,(betaac(i),i=1,kntr)
write (6,afmt3) aft,(ft(i),i=1,kntr)
360 kntr=0
if (loc.ne.0) go to 330
c
c jfets
c
400 if (jelcnt(13).eq.0) go to 500
ititle=0
401 format(1h0,/,'0**** jfets')
loc=locate(13)
kntr=0
420 if (loc.eq.0) go to 440
kntr=kntr+1
locv=nodplc(loc+1)
node1=nodplc(loc+2)
node2=nodplc(loc+3)
node3=nodplc(loc+4)
locm=nodplc(loc+7)
type=nodplc(locm+2)
locm=nodplc(locm+1)
loct=lx0+nodplc(loc+19)
anam(kntr)=value(locv)
amod(kntr)=value(locm)
cd(kntr)=type*(value(loct+3)-value(loct+4))
vgs(kntr)=value(lvnim1+node2)-value(lvnim1+node3)
vds(kntr)=value(lvnim1+node1)-value(lvnim1+node3)
if (modedc.ne.1) go to 425
gm(kntr)=value(loct+5)
gds(kntr)=value(loct+6)
cgs(kntr)=value(loct+9)
cgd(kntr)=value(loct+11)
425 if (kntr.ge.kntlim) go to 450
430 loc=nodplc(loc)
go to 420
440 if (kntr.eq.0) go to 500
450 if (ititle.eq.0) write (6,401)
ititle=1
write (6,afmt1) (anam(i),i=1,kntr)
write (6,afmt4) (amod(i),i=1,kntr)
write (6,afmt3) aid,(cd(i),i=1,kntr)
write (6,afmt2) avgs,(vgs(i),i=1,kntr)
write (6,afmt2) avds,(vds(i),i=1,kntr)
if (modedc.ne.1) go to 460
write (6,afmt3) agm,(gm(i),i=1,kntr)
write (6,afmt3) agds,(gds(i),i=1,kntr)
write (6,afmt3) acgs,(cgs(i),i=1,kntr)
write (6,afmt3) acgd,(cgd(i),i=1,kntr)
460 kntr=0
if (loc.ne.0) go to 430
c
c mosfets
c
500 if (jelcnt(14).eq.0) go to 600
ititle=0
501 format(1h0,/,'0**** mosfets')
loc=locate(14)
kntr=0
520 if (loc.eq.0) go to 540
kntr=kntr+1
locv=nodplc(loc+1)
node1=nodplc(loc+2)
node2=nodplc(loc+3)
node3=nodplc(loc+4)
node4=nodplc(loc+5)
node5=nodplc(loc+6)
node6=nodplc(loc+7)
locm=nodplc(loc+8)
type=nodplc(locm+2)
locm=nodplc(locm+1)
loct=lx0+nodplc(loc+26)
anam(kntr)=value(locv)
amod(kntr)=value(locm)
if(type.eq.0.0d0) go to 522
cd(kntr)=type*value(loct+4)
vgs(kntr)=value(lvnim1+node2)-value(lvnim1+node3)
vds(kntr)=value(lvnim1+node1)-value(lvnim1+node3)
vbs(kntr)=value(lvnim1+node4)-value(lvnim1+node3)
if (modedc.ne.1) go to 525
xl=value(locv+1)-2.0d0*value(locm+20)
xw=value(locv+2)-2.0d0*value(locm+36)
covlgs=value(locm+8)*xw
covlgd=value(locm+9)*xw
covlgb=value(locm+10)*xl
devmod=value(locv+8)
vdsat(kntr)=value(locv+10)
vth(kntr)=value(locv+9)+type*(value(lvnim1+node4)-
1 value(lvnim1+node6))
gds(kntr)=value(loct+1)
gm(kntr)=value(loct)
gmb(kntr)=-(value(loct)+value(loct+1)+value(loct+2))
if(devmod.gt.0.0d0) go to 521
gds(kntr)=value(loct+2)
vth(kntr)=value(locv+9)+type*(value(lvnim1+node4)-
1 value(lvnim1+node5))
521 cbd(kntr)=value(loct+14)
cbs(kntr)=value(loct+15)
cgsov(kntr)=covlgs
cgdov(kntr)=covlgd
cgbov(kntr)=covlgb
ccgg(kntr)=value(loct+8)
ccgd(kntr)=value(loct+9)
ccgs(kntr)=value(loct+10)
ccbg(kntr)=value(loct+11)
ccbd(kntr)=value(loct+12)
ccbs(kntr)=value(loct+13)
go to 525
c... special case for ga-as
522 cd(kntr)=value(loct+4)
cg(kntr)=value(loct+5)
vgs(kntr)=value(lvnim1+node2)-value(lvnim1+node3)
vds(kntr)=value(lvnim1+node1)-value(lvnim1+node3)
vbs(kntr)=value(lvnim1+node4)-value(lvnim1+node3)
if(modedc.ne.1) go to 525
modeop=value(locv+8)
gm(kntr)=value(loct+7)
gds(kntr)=(value(loct+8)*value(loct+11))
1 /(value(loct+8)+value(loct+11))
if(modeop.le.0) gm(kntr)=value(loct+13)
cds(kntr)=value(loct+10)
cgs(kntr)=value(loct+12)
cgd(kntr)=value(loct+14)
cgb(kntr)=value(loct+16)
525 if (kntr.ge.kntlim) go to 550
530 loc=nodplc(loc)
go to 520
540 if (kntr.eq.0) go to 600
550 if (ititle.eq.0) write (6,501)
ititle=1
write (6,afmt1) (anam(i),i=1,kntr)
write (6,afmt4) (amod(i),i=1,kntr)
if(type.eq.0.0d0) go to 555
write (6,afmt3) aid,(cd(i),i=1,kntr)
write (6,afmt2) avgs,(vgs(i),i=1,kntr)
write (6,afmt2) avds,(vds(i),i=1,kntr)
write (6,afmt2) avbs,(vbs(i),i=1,kntr)
if (modedc.ne.1) go to 560
write (6,afmt2) avth,(vth(i),i=1,kntr)
write (6,afmt2) avdsat,(vdsat(i),i=1,kntr)
write (6,afmt3) agm,(gm(i),i=1,kntr)
write (6,afmt3) agds,(gds(i),i=1,kntr)
write (6,afmt3) agmb,(gmb(i),i=1,kntr)
write (6,afmt3) acbd,(cbd(i),i=1,kntr)
write (6,afmt3) acbs,(cbs(i),i=1,kntr)
write (6,afmt3) acgsov,(cgsov(i),i=1,kntr)
write (6,afmt3) acgdov,(cgdov(i),i=1,kntr)
write (6,afmt3) acgbov,(cgbov(i),i=1,kntr)
write(6,551)
551 format(' derivatives of gate (dqgdvx) and bulk (dqbdvx) charges')
write (6,afmt3) accgg,(ccgg(i),i=1,kntr)
write (6,afmt3) accgd,(ccgd(i),i=1,kntr)
write (6,afmt3) accgs,(ccgs(i),i=1,kntr)
write (6,afmt3) accbg,(ccbg(i),i=1,kntr)
write (6,afmt3) accbd,(ccbd(i),i=1,kntr)
write (6,afmt3) accbs,(ccbs(i),i=1,kntr)
go to 560
555 write(6,afmt3) aid,(cd(i),i=1,kntr)
write(6,afmt3) aig,(cg(i),i=1,kntr)
write (6,afmt2) avgs,(vgs(i),i=1,kntr)
write (6,afmt2) avds,(vds(i),i=1,kntr)
write (6,afmt2) avbs,(vbs(i),i=1,kntr)
if (modedc.ne.1) go to 560
write (6,afmt3) agm,(gm(i),i=1,kntr)
write (6,afmt3) agds,(gds(i),i=1,kntr)
write (6,afmt3) acgs,(cgs(i),i=1,kntr)
write (6,afmt3) acgd,(cgd(i),i=1,kntr)
write (6,afmt3) acgb,(cgb(i),i=1,kntr)
write (6,afmt3) acds,(cds(i),i=1,kntr)
560 kntr=0
if (loc.ne.0) go to 530
600 if (modedc.ne.1) go to 700
if (kinel.eq.0) go to 610
call sstf
610 if (nsens.eq.0) go to 700
call sencal
c
c finished
c
700 if (modedc.eq.2) go to 710
if (jacflg.ne.0) go to 705
call clrmem(lvnim1)
call clrmem(lx0)
705 call clrmem(lvn)
call clrmem(ndiag)
710 call second(t2)
rstats(5)=rstats(5)+t2-t1
return
end
subroutine sstf
implicit double precision (a-h,o-z)
c
c this routine computes the value of the small-signal transfer
c function specified by the user.
c
common /tabinf/ ielmnt,isbckt,nsbckt,iunsat,nunsat,itemps,numtem,
1 isens,nsens,ifour,nfour,ifield,icode,idelim,icolum,insize,
2 junode,lsbkpt,numbkp,iorder,jmnode,iur,iuc,ilc,ilr,numoff,isr,
3 nmoffc,iseq,iseq1,neqn,nodevs,ndiag,iswap,iequa,macins,lvnim1,
4 lx0,lvn,lynl,lyu,lyl,lx1,lx2,lx3,lx4,lx5,lx6,lx7,ld0,ld1,ltd,
5 imynl,imvn,lcvn,loutpt,nsnod,nsmat,nsval,icnod,icmat,icval
common /cirdat/ locate(50),jelcnt(50),nunods,ncnods,numnod,nstop,
1 nut,nlt,nxtrm,ndist,ntlin,ibr,numvs
common /flags/ iprnta,iprntl,iprntm,iprntn,iprnto,limtim,limpts,
1 lvlcod,lvltim,itl1,itl2,itl3,itl4,itl5,igoof,nogo,keof
common /dc/ tcstar(2),tcstop(2),tcincr(2),icvflg,itcelm(2),kssop,
1 kinel,kidin,kovar,kidout
common /blank/ value(1000)
integer nodplc(64)
complex*16 cvalue(32)
equivalence (value(1),nodplc(1),cvalue(1))
c
c
dimension string(5),save(3)
data aslash, ablnk / 1h/, 1h /
c
c setup current vector for input resistance and transfer function
c
call zero8(value(lvn+1),nstop)
if (kidin.eq.10) go to 5
c... voltage source input
iptri=nodplc(kinel+6)
value(lvn+iptri)=+1.0d0
go to 10
c... current source input
5 noposi=nodplc(kinel+2)
nonegi=nodplc(kinel+3)
value(lvn+noposi)=-1.0d0
value(lvn+nonegi)=+1.0d0
c
c lu decompose and solve the system of circuit equations
c
c... reorder the right-hand side
10 do 15 i=2,nstop
j=nodplc(iswap+i)
value(ndiag+i)=value(lvn+j)
15 continue
call copy8(value(ndiag+1),value(lvn+1),nstop)
20 call dcdcmp
call dcsol
value(lvn+1)=0.0d0
c
c evaluate transfer function
c
if (nodplc(kovar+5).ne.0) go to 30
c... voltage output
noposo=nodplc(kovar+2)
nonego=nodplc(kovar+3)
trfn=value(lvn+noposo)-value(lvn+nonego)
go to 40
c... current output (through voltage source)
30 iptro=nodplc(kovar+2)
iptro=nodplc(iptro+6)
trfn=value(lvn+iptro)
c
c evaluate input resistance
c
40 if (kidin.eq.9) go to 50
c... current source input
zin=value(lvn+nonegi)-value(lvn+noposi)
go to 70
c... voltage source input
50 creal=value(lvn+iptri)
if (dabs(creal).ge.1.0d-20) go to 60
zin=1.0d20
go to 70
60 zin=-1.0d0/creal
c
c setup current vector for output resistance
c
70 call zero8(value(lvn+1),nstop)
if (nodplc(kovar+5).ne.0) go to 80
c... voltage output
value(lvn+noposo)=-1.0d0
value(lvn+nonego)=+1.0d0
go to 90
80 if (nodplc(kovar+2).ne.kinel) go to 85
zout=zin
go to 200
c... current output (through voltage source)
85 value(lvn+iptro)=+1.0d0
c
c perform new forward and backward substitution
c
c... reorder the right-hand side
90 do 95 i=2,nstop
j=nodplc(iswap+i)
value(ndiag+i)=value(lvn+j)
95 continue
call copy8(value(ndiag+1),value(lvn+1),nstop)
call dcsol
value(lvn+1)=0.0d0
c
c evaluate output resistance
c
100 if (nodplc(kovar+5).ne.0) go to 110
c... voltage output
zout=value(lvn+nonego)-value(lvn+noposo)
go to 200
c... current output (through voltage source)
110 creal=value(lvn+iptro)
if (dabs(creal).ge.1.0d-20) go to 120
zout=1.0d20
go to 200
120 zout=-1.0d0/creal
c
c print results
c
200 do 210 i=1,5
string(i)=ablnk
210 continue
ipos=1
call outnam(kovar,1,string,ipos)
call copy8(string,save,3)
call move(string,ipos,aslash,1,1)
ipos=ipos+1
locv=nodplc(kinel+1)
anam=value(locv)
call move(string,ipos,anam,1,8)
write (6,231) string,trfn,anam,zin,save,zout
231 format(////,'0**** small-signal characteristics'//,
1 1h0,5x,5a8,3h = ,1pd10.3,/,
2 1h0,5x,'input resistance at ',a8,12x,3h = ,d10.3,/,
3 1h0,5x,'output resistance at ',2a8,a3,3h = ,d10.3)
return
end
subroutine sencal
implicit double precision (a-h,o-z)
c
c this routine computes the dc sensitivities of circuit elements
c with respect to user specified outputs.
c
common /tabinf/ ielmnt,isbckt,nsbckt,iunsat,nunsat,itemps,numtem,
1 isens,nsens,ifour,nfour,ifield,icode,idelim,icolum,insize,
2 junode,lsbkpt,numbkp,iorder,jmnode,iur,iuc,ilc,ilr,numoff,isr,
3 nmoffc,iseq,iseq1,neqn,nodevs,ndiag,iswap,iequa,macins,lvnim1,
4 lx0,lvn,lynl,lyu,lyl,lx1,lx2,lx3,lx4,lx5,lx6,lx7,ld0,ld1,ltd,
5 imynl,imvn,lcvn,loutpt,nsnod,nsmat,nsval,icnod,icmat,icval
common /cirdat/ locate(50),jelcnt(50),nunods,ncnods,numnod,nstop,
1 nut,nlt,nxtrm,ndist,ntlin,ibr,numvs
common /status/ omega,time,delta,delold(7),ag(7),vt,xni,egfet,
1 xmu,mode,modedc,icalc,initf,method,iord,maxord,noncon,iterno,
2 itemno,nosolv,ipostp,iscrch
common /miscel/ atime,aprog(3),adate,atitle(10),defl,defw,defad,
1 defas,rstats(50),iwidth,lwidth,nopage
common /flags/ iprnta,iprntl,iprntm,iprntn,iprnto,limtim,limpts,
1 lvlcod,lvltim,itl1,itl2,itl3,itl4,itl5,igoof,nogo,keof
common /dc/ tcstar(2),tcstop(2),tcincr(2),icvflg,itcelm(2),kssop,
1 kinel,kidin,kovar,kidout
common /blank/ value(1000)
integer nodplc(64)
complex*16 cvalue(32)
equivalence (value(1),nodplc(1),cvalue(1))
c
c
dimension string(5),sentit(4)
data alsrs,alsis,alsn,alsrb,alsrc,alsre / 2hrs,2his,1hn,2hrb,2hrc,
1 2hre /
data alsbf,alsc2,alsbr,alsc4,alsne,alsnc,alsik,alsikr,alsva,alsvb
1 / 2hbf,3hjle,2hbr,3hjlc,3hnle,3hnlc,3hjbf,3hjbr,3hvbf,3hvbr/
data alsjs /2hjs/
data sentit / 8hdc sensi, 8htivity a, 8hnalysis , 8h /
data ablnk / 1h /
c
c
if (kinel.ne.0) go to 8
4 call dcdcmp
c
c
8 do 1000 n=1,nsens
c
c prepare adjoint excitation vector
c
call zero8(value(lvn+1),nstop)
locs=nodplc(isens+n)
ioutyp=nodplc(locs+5)
if (ioutyp.ne.0) go to 10
c... voltage output
ivolts=1
noposo=nodplc(locs+2)
nonego=nodplc(locs+3)
value(lvn+noposo)=-1.0d0
value(lvn+nonego)=+1.0d0
go to 20
c... current output (through voltage source)
10 iptro=nodplc(locs+2)
ivolts=0
iptro=nodplc(iptro+6)
value(lvn+iptro)=-1.0d0
c
c obtain adjoint solution by doing forward/backward substitution on
c the transpose of the y matrix
c
20 call asol
value(lvn+1)=0.0d0
c
c real solution in lvnim1; adjoint solution in lvn ...
c
call title(0,lwidth,1,sentit)
ipos=1
call outnam(locs,1,string,ipos)
call move(string,ipos,ablnk,1,7)
jstop=(ipos+6)/8
write (6,36) (string(j),j=1,jstop)
36 format('0dc sensitivities of output ',5a8)
if(ivolts.ne.0) write (6,41)
if(ivolts.eq.0) write(6,42)
41 format(1h0,8x,'element',9x,'element',7x,'element',7x,'normalized'/
1 10x,'name',12x,'value',6x,'sensitivity sensitivity'/35x,
2 ' (volts/unit) (volts/percent)'/)
42 format(1h0,8x,'element',9x,'element',7x,'element',7x,'normalized'/
1 10x,'name',12x,'value',6x,'sensitivity sensitivity'/35x,
2 ' (amps/unit) (amps/percent)'/)
c
c resistors
c
loc=locate(1)
100 if (loc.eq.0) go to 110
locv=nodplc(loc+1)
node1=nodplc(loc+2)
node2=nodplc(loc+3)
val=1.0d0/value(locv+1)
sens=-(value(lvnim1+node1)-value(lvnim1+node2))*
1 (value(lvn +node1)-value(lvn +node2))/(val*val)
sensn=val*sens/100.0d0
write (6,101) value(locv),val,sens,sensn
101 format(10x,a8,4x,1pd10.3,5x,d10.3,5x,d10.3)
105 loc=nodplc(loc)
go to 100
c
c voltage sources
c
110 loc=locate(9)
140 if (loc.eq.0) go to 150
locv=nodplc(loc+1)
val=value(locv+1)
iptrv=nodplc(loc+6)
sens=-value(lvn+iptrv)
sensn=val*sens/100.0d0
write (6,101) value(locv),val,sens,sensn
145 loc=nodplc(loc)
go to 140
c
c current sources
c
150 loc=locate(10)
160 if (loc.eq.0) go to 170
locv=nodplc(loc+1)
node1=nodplc(loc+2)
node2=nodplc(loc+3)
val=value(locv+1)
sens=value(lvn+node1)-value(lvn+node2)
sensn=val*sens/100.0d0
write (6,101) value(locv),val,sens,sensn
165 loc=nodplc(loc)
go to 160
c
c diodes
c
170 loc=locate(11)
180 if (loc.eq.0) go to 210
locv=nodplc(loc+1)
write (6,181) value(locv)
181 format(1x,a8)
node1=nodplc(loc+2)
node2=nodplc(loc+3)
node3=nodplc(loc+4)
locm=nodplc(loc+5)
locm=nodplc(locm+1)
area=value(locv+1)
c
c series resistance (rs)
c
val=value(locm+2)*area
if (val.ne.0.0d0) go to 190
write (6,186) alsrs
186 format(10x,a8,5x,2h0.,13x,2h0.,13x,2h0.)
go to 200
190 val=1.0d0/val
sens=-(value(lvnim1+node1)-value(lvnim1+node3))*
1 (value(lvn +node1)-value(lvn +node3))/(val*val)
sensn=val*sens/100.0d0
write (6,101) alsrs,val,sens,sensn
c
c intrinsic parameters
c
200 csat=value(locm+1)*area
xn=value(locm+3)
vbe=value(lvnim1+node3)-value(lvnim1+node2)
vte=xn*vt
evbe=dexp(vbe/vte)
vabe=value(lvn+node3)-value(lvn+node2)
c
c saturation current (is)
c
sens=vabe*(evbe-1.0d0)
sensn=csat*sens/100.0d0
write (6,101) alsis,csat,sens,sensn
c
c ideality factor (n)
c
sens=-vabe*(csat/xn)*(vbe/vte)*evbe
if (dabs(sens).lt.1.0d-50) sens=0.0d0
sensn=xn*sens/100.0d0
write (6,101) alsn,xn,sens,sensn
205 loc=nodplc(loc)
go to 180
c
c bipolar junction transistors
c
210 loc=locate(12)
220 if (loc.eq.0) go to 1000
locv=nodplc(loc+1)
write (6,181) value(locv)
node1=nodplc(loc+2)
node2=nodplc(loc+3)
node3=nodplc(loc+4)
node4=nodplc(loc+5)
node5=nodplc(loc+6)
node6=nodplc(loc+7)
locm=nodplc(loc+8)
type=nodplc(locm+2)
locm=nodplc(locm+1)
loct=lx0+nodplc(loc+22)
area=value(locv+1)
c
c base resistance (rb)
c
val=value(loct+16)
if (val.ne.0.0d0) go to 230
write (6,186) alsrb
go to 240
230 val=1.0d0/val
sens=-(value(lvnim1+node2)-value(lvnim1+node5))*
1 (value(lvn +node2)-value(lvn +node5))/(val*val)
sensn=val*sens/100.0d0
write (6,101) alsrb,val,sens,sensn
c
c collector resistance (rc)
c
240 val=value(locm+20)*area
if (val.ne.0.0d0) go to 250
write (6,186) alsrc
go to 260
250 val=1.0d0/val
sens=-(value(lvnim1+node1)-value(lvnim1+node4))*
1 (value(lvn +node1)-value(lvn +node4))/(val*val)
sensn=val*sens/100.0d0
write (6,101) alsrc,val,sens,sensn
c
c emitter resistance (re)
c
260 val=value(locm+19)*area
if (val.ne.0.0d0) go to 270
write (6,186) alsre
go to 280
270 val=1.0d0/val
sens=-(value(lvnim1+node3)-value(lvnim1+node6))*
1 (value(lvn +node3)-value(lvn +node6))/(val*val)
sensn=val*sens/100.0d0
write (6,101) alsre,val,sens,sensn
c
c intrinsic parameters
c
280 bf=value(locm+2)
br=value(locm+8)
csat=value(locm+1)*area
ova=value(locm+4)
ovb=value(locm+19)
oik=value(locm+5)/area
c2=value(locm+6)*area
xne=value(locm+7)
vte=xne*vt
oikr=value(locm+11)/area
c4=value(locm+12)*area
xnc=value(locm+13)
vtc=xnc*vt
vbe=type*(value(lvnim1+node5)-value(lvnim1+node6))
vbc=type*(value(lvnim1+node5)-value(lvnim1+node4))
vabe=type*(value(lvn+node5)-value(lvn+node6))
vabc=type*(value(lvn+node5)-value(lvn+node4))
vace=vabe-vabc
if (vbe.le.-vt) go to 320
evbe=dexp(vbe/vt/value(locm+3))
cbe=csat*(evbe-1.0d0)
gbe=csat*evbe/vt/value(locm+3)
if (c2.ne.0.0d0) go to 310
cben=0.0d0
gben=0.0d0
go to 350
310 evben=dexp(vbe/vte)
cben=c2 *(evben-1.0d0)
gben=c2 *evben/vte
go to 350
320 gbe=-csat/vbe
cbe=gbe*vbe
gben=-c2/vbe
cben=gben*vbe
350 if (vbc.le.-vt) go to 370
evbc=dexp(vbc/vt/value(locm+9))
cbc=csat*(evbc-1.0d0)
gbc=csat*evbc/vt/value(locm+9)
if (c4.ne.0.0d0) go to 360
cbcn=0.0d0
gbcn=0.0d0
go to 400
360 evbcn=dexp(vbc/vtc)
cbcn=c4 *(evbcn-1.0d0)
gbcn=c4 *evbcn/vtc
go to 400
370 gbc=-csat/vbc
cbc=gbc*vbc
gbcn=-c4/vbc
cbcn=gbcn*vbc
400 q1=1.0d0/(1.0d0-ova*vbc-ovb*vbe)
q2=oik*cbe+oikr*cbc
sqarg=dsqrt(1.0d0+4.0d0*q2)
qb=q1*(1.0d0+sqarg)/2.0d0
dqb=(cbe-cbc)/(qb*qb)
sqarg=dsqrt(1.0d0+4.0d0*q2)
dq1=dqb*(1.0d0+sqarg)+(q1*q1)/2.0d0
dq2=q1*dqb/sqarg
c
c compute sensitivities
c
c... bf
sens=-vabe*cbe/bf/bf
sensn=bf*sens/100.0d0
write (6,101) alsbf,bf,sens,sensn
c... jle
if (c2.ne.0.0d0) go to 430
write (6,186) alsc2
go to 440
430 sens=vabe*cben/c2
sensn=c2*sens/100.0d0
write (6,101) alsc2,c2,sens,sensn
c... br
440 sens=-vabc*cbc/br/br
sensn=br*sens/100.0d0
write (6,101) alsbr,br,sens,sensn
c... jlc
if (c4.ne.0.0d0) go to 450
write (6,186) alsc4
go to 460
450 sens=vabc*cbcn/c4
sensn=c4*sens/100.0d0
write (6,101) alsc4,c4,sens,sensn
c... is
460 sens=(vabe*(cbe/bf)+vabc*(cbc/br)
1 +vace*(dqb*qb-dq2*q2))/csat
sensn=csat*sens/100.0d0
write (6,101) alsjs,csat,sens,sensn
c... ne
sens=-vabe*gben*vbe/xne
sensn=xne*sens/100.0d0
write (6,101) alsne,xne,sens,sensn
c... nc
sens=-vabc*gbcn*vbc/xnc
sensn=xnc*sens/100.0d0
write (6,101) alsnc,xnc,sens,sensn
c... ik
if (oik.ne.0.0d0) go to 470
write (6,186) alsik
go to 480
470 val=1.0d0/oik
sens=vace*dq2*cbe/(val*val)
sensn=val*sens/100.0d0
write (6,101) alsik,val,sens,sensn
c... ikr
480 if (oikr.ne.0.0d0) go to 490
write (6,186) alsikr
go to 500
490 val=1.0d0/oikr
sens=vace*dq2*cbc/(val*val)
sensn=val*sens/100.0d0
write (6,101) alsikr,val,sens,sensn
c... va
500 if (ova.ne.0.0d0) go to 510
write (6,186) alsva
go to 520
510 va=1.0d0/ova
sens=vace*dq1*vbc/(va*va)
sensn=va*sens/100.0d0
write (6,101) alsva,va,sens,sensn
c... vb
520 if (ovb.ne.0.0d0) go to 530
write (6,186) alsvb
go to 540
530 vb=1.0d0/ovb
sens=vace*dq1*vbe/(vb*vb)
sensn=vb*sens/100.0d0
write (6,101) alsvb,vb,sens,sensn
c
c
540 loc=nodplc(loc)
go to 220
c
c finished
c
1000 continue
return
end
subroutine asol
implicit double precision (a-h,o-z)
c
c this routine evaluates the adjoint circuit response by doing a
c forward/backward substitution on the transpose of the coefficient
c matrix.
c
common /tabinf/ ielmnt,isbckt,nsbckt,iunsat,nunsat,itemps,numtem,
1 isens,nsens,ifour,nfour,ifield,icode,idelim,icolum,insize,
2 junode,lsbkpt,numbkp,iorder,jmnode,iur,iuc,ilc,ilr,numoff,isr,
3 nmoffc,iseq,iseq1,neqn,nodevs,ndiag,iswap,iequa,macins,lvnim1,
4 lx0,lvn,lynl,lyu,lyl,lx1,lx2,lx3,lx4,lx5,lx6,lx7,ld0,ld1,ltd,
5 imynl,imvn,lcvn,loutpt,nsnod,nsmat,nsval,icnod,icmat,icval
common /cirdat/ locate(50),jelcnt(50),nunods,ncnods,numnod,nstop,
1 nut,nlt,nxtrm,ndist,ntlin,ibr,numvs
common /blank/ value(1000)
integer nodplc(64)
complex*16 cvalue(32)
equivalence (value(1),nodplc(1),cvalue(1))
c
c forward substitution
c
do 20 i=2,nstop
io=nodplc(iorder+i)
value(lvn+io)=value(lvn+io)/value(lynl+io)
jstart=nodplc(iur+i)
jstop=nodplc(iur+i+1)-1
if (jstart.gt.jstop) go to 20
if (value(lvn+io).eq.0.0d0) go to 20
do 10 j=jstart,jstop
jo=nodplc(iuc+j)
jo=nodplc(iorder+jo)
value(lvn+jo)=value(lvn+jo)-value(lyu+j)*value(lvn+io)
10 continue
20 continue
c
c backward substitution
c
k=nstop+1
do 40 i=2,nstop
k=k-1
io=nodplc(iorder+k)
jstart=nodplc(ilc+k)
jstop=nodplc(ilc+k+1)-1
if (jstart.gt.jstop) go to 40
do 30 j=jstart,jstop
jo=nodplc(ilr+j)
jo=nodplc(iorder+jo)
value(lvn+io)=value(lvn+io)-value(lyl+j)*value(lvn+jo)
30 continue
40 continue
c
c reorder right-hand side
c
do 50 i=2,nstop
j=nodplc(iswap+i)
value(ndiag+i)=value(lvn+j)
50 continue
call copy8(value(ndiag+1),value(lvn+1),nstop)
c
c finished
c
return
end
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