alainstas
Published © GPL3+

Spice simulation of power semiconductor protection with PTC

An LTspice simulation of overtemperature protection of a power BJT by a Vishay PTC sensing through hole component

BeginnerProtip1 hour522
Spice simulation of power semiconductor protection with PTC

Things used in this project

Hardware components

Rohm 2SCR552P
×1
Vishay PTCSL03T141
×1

Story

Read more

Schematics

protection of semiconductor in temp with PTCSL

unzip and open it in LTspice

Code

LTspice netlist for Vishay PTC sensing thermistors

Plain text
use it as a nelist for an LTspice library
********************************
* Copyright:                   *
* Vishay Intertechnology, Inc. *
********************************
* LTpice Model Editor
*$
* Library of Vishay PTC sensing Thermistors
*
*
* $Revision:   1.0  $
* $Author:   Alain Stas  $
* $Date:   dec 2020 $
* $Revision History :
*---------------------------------------------------------------
*
* Vishay PTC Thermistors included in this file : PTCSL03
* DESCRIPTION: through hole PTC disc thermistors for temperature sensing
* For power rating and temperature range limitations, see
* PTCSL03 : http://www.vishay.com/thermistors/list/product-29160/
* or use the search engine of Vishay for visualizing particular data sheet at http://www.vishay.com/
* the model is applicable for transient and steady states conditions under bias including self heating.
* The tolerance on resistance characteristics is implemented via the tolerance on R27
*
*----------------------------------------------------------------
.SUBCKT PTCSL03_base Rn Rp Ti InvK  LnLn PARAMS: tsw=1 cth=1 k=0.001 gth=1 tol=0 tmin=0  rsw=1
+  tmax=1
R_R1         0 OUT  1T TC=0,0
E_E2         INVK 0 VALUE { +1/(273.15+ V(Ti)+limit(V(HH),0,Tmax- V(Ti))) }
V_V5         N RN 0.Vdc
G_G8         H 0 VALUE { -abs((V(P)-V(N))*I(V_V5)) }
C_C1         0 H  {Cth} IC=0 TC=0,0
E_E3         OUT 0 VALUE { +abs(limit(exp(exp(V(LNLN,
+  0))),1m,1T))*IF( v(Ti)<25,1,exp(0.003 * (V(TOL)-1)* (V(Ti)-25)))* V(TOL) }
G_G10         H 0 VALUE { V(H)*(Gth ) }
R_R3         0 H  1T TC=0,0
G_G5         N P VALUE { V(N, RP)/(V(out)) }
E_E20         HH 0 VALUE { limit(V(H),0,Tmax-V(Ti)) }
R_R26         0 HH  1T TC=0,0
R_R27         0 TOL {mc(1,0.1)}
*.model        R_R27 RES R=1 DEV=10% TC1=0 TC2=0
I_I1         0 TOL DC 1
R_R23         RP P  {K} TC=0,0
.ENDS
*$
$
.SUBCKT PTCSL03T081 Rn Rp Ti
X Rn Rp Ti invK LnLn PTCSL03_BASE PARAMs:  tsw=80 cth=0.026 k=0.001 gth=5m tol=-25 tmin=-40
+  tmax=130
E_E4         LNLN 0 TABLE { V(INVK, 0) }
+ ( (0.00251161622504081,2.70052302818763)
+  (0.00254355843825512,2.6687835168695)
+  (0.00257632358624243,2.62617839776182)
+  (0.00260994388620645,2.57183301321147)
+  (0.00264445325928864,2.5050116479391)
+  (0.00267988744472732,2.42477312458303)
+  (0.0027162841233193,2.33118588800281)
+  (0.00275368305108082,2.21585991083099)
+  (0.00279212620410443,2.0792344527942)
+  (0.00283165793572136,1.9277590247498)
+  (0.00287232514720666,1.77658791238635)
+  (0.00291417747340813,1.6827069521257)
+  (0.002957267484844,1.60394230271382)
+  (0.0030016509079994,1.54655996187321)
+  (0.00304738686576261,1.49789221607182)
+  (0.00309453814018258,1.46480305417665)
+  (0.00314317146000314,1.43631574393993)
+  (0.00319335781574325,1.41292527987464)
+  (0.00324517280545189,1.39923326397539)
+  (0.0032986970146792,1.38782614154972)
+  (0.00335401643468053,1.37905963203229)
+  (0.00341122292341805,1.37781128558586)
+  (0.00347041471455839,1.37752386116459)
+  (0.00353169698039908,1.37830240381305)
+  (0.00359518245550962,1.38026347452183)
+  (0.00366099212886692,1.3835365735581)
+  (0.00372925601342532,1.39040978996121)
+  (0.0038001140034201,1.39795094723295)
+  (0.00387371683129963,1.40622294890989)
+  (0.00395022713806044,1.4152956091917)
+  (0.00402982067298005,1.42524654864632)
+  (0.00411268764137364,1.43616222554687)
+  (0.00419903422212891,1.44813912654248)
+  (0.00428908428050611,1.4612851450927) )
.ENDS
*$
$
.SUBCKT PTCSL03T091 Rn Rp Ti
X Rn Rp Ti invK LnLn PTCSL03_BASE PARAMs:tsw=90 cth=0.026 k=0.001 gth=5m tol=0 tmin=-40
+  tmax=155
E_E4         LNLN 0 TABLE { V(INVK, 0) }
+ ( (0.00236322816967978,2.71465130528791)
+  (0.00239148630874088,2.69033401984185)
+  (0.0024204284158296,2.66270263942767)
+  (0.0024500796275879,2.63153397418642)
+  (0.0024804663276696,2.59658866954238)
+  (0.00251161622504081,2.55760986744344)
+  (0.00254355843825512,2.51432174042502)
+  (0.00257632358624243,2.46640548389709)
+  (0.00260994388620645,2.39634687647177)
+  (0.00264445325928864,2.30832992648217)
+  (0.00267988744472732,2.20018819293831)
+  (0.0027162841233193,2.07949703378151)
+  (0.00275368305108082,1.94091326140111)
+  (0.00279212620410443,1.78937664575774)
+  (0.00283165793572136,1.64106797814195)
+  (0.00287232514720666,1.53797991492544)
+  (0.00291417747340813,1.4669087126627)
+  (0.002957267484844,1.40885500016206)
+  (0.0030016509079994,1.36948301348907)
+  (0.00304738686576261,1.33702078842248)
+  (0.00309453814018258,1.31715080751383)
+  (0.00314317146000314,1.3006546038527)
+  (0.00319335781574325,1.28788836181428)
+  (0.00324517280545189,1.28244311103302)
+  (0.0032986970146792,1.27843052273105)
+  (0.00335401643468053,1.27604207200429)
+  (0.00341122292341805,1.27727185177644)
+  (0.00347041471455839,1.27958251627666)
+  (0.00353169698039908,1.28308729652109)
+  (0.00359518245550962,1.28791166208748)
+  (0.00366099212886692,1.29419482307316)
+  (0.00372925601342532,1.30442947607836)
+  (0.0038001140034201,1.31541518760419)
+  (0.00387371683129963,1.32721704786004)
+  (0.00395022713806044,1.33990701754706)
+  (0.00402982067298005,1.3535647976324)
+  (0.00411268764137364,1.36827882880027)
+  (0.00419903422212891,1.38414744299342)
+  (0.00428908428050611,1.40128019389221) )
.ENDS
*$
$
.SUBCKT PTCSL03T101 Rn Rp Ti
X Rn Rp Ti invK LnLn PTCSL03_BASE PARAMs: tsw=100 cth=0.026 k=0.001 gth=5m tol=0 tmin=-40 tmax=160
E_E4         LNLN 0 TABLE { V(INVK, 0) }
+ ( (0.00233563003620227,2.79939002210763)
+  (0.00236322816967978,2.78472801990074)
+  (0.00239148630874088,2.762643246796)
+  (0.0024204284158296,2.73262807717219)
+  (0.0024500796275879,2.69618637328019)
+  (0.0024804663276696,2.64854712156284)
+  (0.00251161622504081,2.58889578831611)
+  (0.00254355843825512,2.52430056314211)
+  (0.00257632358624243,2.42996436863942)
+  (0.00260994388620645,2.30348764321867)
+  (0.00264445325928864,2.1300300967841)
+  (0.00267988744472732,1.95487670951724)
+  (0.0027162841233193,1.7327154807204)
+  (0.00275368305108082,1.5903111115181)
+  (0.00279212620410443,1.53024948864313)
+  (0.00283165793572136,1.48313047774067)
+  (0.00287232514720666,1.45406901518506)
+  (0.00291417747340813,1.43261833006777)
+  (0.002957267484844,1.42712453027595)
+  (0.0030016509079994,1.42334738488295)
+  (0.00304738686576261,1.42145268160874)
+  (0.00309453814018258,1.42364558056336)
+  (0.00314317146000314,1.42614190008744)
+  (0.00319335781574325,1.42896758583059)
+  (0.00324517280545189,1.43198483027867)
+  (0.0032986970146792,1.43555156869388)
+  (0.00335401643468053,1.43971846370168)
+  (0.00341122292341805,1.44603280309521)
+  (0.00347041471455839,1.45239689789219)
+  (0.00353169698039908,1.45880425256435)
+  (0.00359518245550962,1.46524723615177)
+  (0.00366099212886692,1.47171691604961)
+  (0.00372925601342532,1.47757665644959)
+  (0.0038001140034201,1.48371759600105)
+  (0.00387371683129963,1.49015954033921)
+  (0.00395022713806044,1.49692413910059)
+  (0.00402982067298005,1.50403510039959)
+  (0.00411268764137364,1.51151843538133)
+  (0.00419903422212891,1.51940273781338)
+  (0.00428908428050611,1.5277195046251) )
.ENDS
*$
$
.SUBCKT PTCSL03T111 Rn Rp Ti
X Rn Rp Ti invK LnLn PTCSL03_BASE PARAMs: tsw=110 cth=0.026 k=0.001 gth=5m tol=0 tmin=-40 tmax=160
E_E4         LNLN 0 TABLE { V(INVK, 0) }
+ ( (0.00233563003620227,2.7258368032572)
+  (0.00236322816967978,2.68042546682781)
+  (0.00239148630874088,2.62669555771769)
+  (0.0024204284158296,2.56407929174366)
+  (0.0024500796275879,2.49196787987299)
+  (0.0024804663276696,2.40970815783624)
+  (0.00251161622504081,2.3165988986443)
+  (0.00254355843825512,2.20004976565463)
+  (0.00257632358624243,2.06436951182091)
+  (0.00260994388620645,1.90540502695643)
+  (0.00264445325928864,1.72953758862235)
+  (0.00267988744472732,1.59624606804081)
+  (0.0027162841233193,1.51827571994653)
+  (0.00275368305108082,1.4626737779449)
+  (0.00279212620410443,1.41893007743887)
+  (0.00283165793572136,1.388125978991)
+  (0.00287232514720666,1.36136905977448)
+  (0.00291417747340813,1.34251001349697)
+  (0.002957267484844,1.32803019391637)
+  (0.0030016509079994,1.31981520477296)
+  (0.00304738686576261,1.31846232050533)
+  (0.00309453814018258,1.31675901606707)
+  (0.00314317146000314,1.31873174347186)
+  (0.00319335781574325,1.32473808618053)
+  (0.00324517280545189,1.32922599809378)
+  (0.0032986970146792,1.33510543486864)
+  (0.00335401643468053,1.34251001349676)
+  (0.00341122292341805,1.34904410538156)
+  (0.00347041471455839,1.35591881171469)
+  (0.00353169698039908,1.36315831469504)
+  (0.00359518245550962,1.37078898458746)
+  (0.00366099212886692,1.37883962185788)
+  (0.00372925601342532,1.38720179039332)
+  (0.0038001140034201,1.39599077731029)
+  (0.00387371683129963,1.40523784216141)
+  (0.00395022713806044,1.41497723451105)
+  (0.00402982067298005,1.42524654864637)
+  (0.00411268764137364,1.436239938512)
+  (0.00419903422212891,1.44791621832888)
+  (0.00428908428050611,1.46033386390705) )
.ENDS
*$
$
.SUBCKT PTCSL03T121 Rn Rp Ti
X Rn Rp Ti invK LnLn PTCSL03_BASE PARAMs: tsw=120 cth=0.026 k=0.001 gth=5m tol=0 tmin=-40
+  tmax=180
E_E4         LNLN 0 TABLE { V(INVK, 0) }
+ ( (0.00223139573803414,2.75282506605773)
+  (0.00225657226672684,2.73637998049406)
+  (0.00228232340522652,2.70821758273856)
+  (0.00230866905229135,2.662841895596)
+  (0.00233563003620227,2.60876901449367)
+  (0.00236322816967978,2.54541670532426)
+  (0.00239148630874088,2.4722046261613)
+  (0.0024204284158296,2.39363083677151)
+  (0.0024500796275879,2.29597465641039)
+  (0.0024804663276696,2.17760783123656)
+  (0.00251161622504081,2.05555619387432)
+  (0.00254355843825512,1.91216261084418)
+  (0.00257632358624243,1.76566807336251)
+  (0.00260994388620645,1.68876717954182)
+  (0.00264445325928864,1.6390886028936)
+  (0.00267988744472732,1.59641385497438)
+  (0.0027162841233193,1.57554285740533)
+  (0.00275368305108082,1.55653278877564)
+  (0.00279212620410443,1.53948607048441)
+  (0.00283165793572136,1.52459353355855)
+  (0.00287232514720666,1.51208269011123)
+  (0.00291417747340813,1.5068519074824)
+  (0.002957267484844,1.50231431721091)
+  (0.0030016509079994,1.49853987869146)
+  (0.00304738686576261,1.4956052128075)
+  (0.00309453814018258,1.49359430564535)
+  (0.00314317146000314,1.49354499165717)
+  (0.00319335781574325,1.49418838439563)
+  (0.00324517280545189,1.49558723220293)
+  (0.0032986970146792,1.497815861979)
+  (0.00335401643468053,1.50095854281418)
+  (0.00341122292341805,1.50601660826479)
+  (0.00347041471455839,1.51176589280315)
+  (0.00353169698039908,1.51827081503315)
+  (0.00359518245550962,1.52560246041539)
+  (0.00366099212886692,1.53383938110518)
+  (0.00372925601342532,1.54486945743145)
+  (0.0038001140034201,1.55619124326952)
+  (0.00387371683129963,1.56781413984545)
+  (0.00395022713806044,1.57974768295806)
+  (0.00402982067298005,1.59200149403189)
+  (0.00411268764137364,1.60458521726067)
+  (0.00419903422212891,1.61750843961594)
+  (0.00428908428050611,1.63078058973547) )
.ENDS
*$
$
.SUBCKT PTCSL03T131 Rn Rp Ti
X Rn Rp Ti invK LnLn PTCSL03_BASE PARAMs: tsw=130 cth=0.026 k=0.001 gth=5m tol=0 tmin=-40
+  tmax=180
E_E4         LNLN 0 TABLE { V(INVK, 0) }
+ ( (0.00223139573803414,2.54294487117689)
+  (0.00225657226672684,2.5250982336674)
+  (0.00228232340522652,2.49751331393143)
+  (0.00230866905229135,2.45952601326152)
+  (0.00233563003620227,2.41312551767832)
+  (0.00236322816967978,2.35220914452781)
+  (0.00239148630874088,2.27576128039496)
+  (0.0024204284158296,2.18272302377601)
+  (0.0024500796275879,2.07533859568736)
+  (0.0024804663276696,1.94958436755238)
+  (0.00251161622504081,1.79046038517609)
+  (0.00254355843825512,1.59768116956263)
+  (0.00257632358624243,1.48568130056366)
+  (0.00260994388620645,1.42848861633408)
+  (0.00264445325928864,1.39236907872666)
+  (0.00267988744472732,1.36189100198071)
+  (0.0027162841233193,1.34898569086366)
+  (0.00275368305108082,1.33756359994242)
+  (0.00279212620410443,1.32770125288182)
+  (0.00283165793572136,1.31954582533968)
+  (0.00287232514720666,1.31327247473086)
+  (0.00291417747340813,1.31261187016847)
+  (0.002957267484844,1.31255219072645)
+  (0.0030016509079994,1.31314884829678)
+  (0.00304738686576261,1.31446238652957)
+  (0.00309453814018258,1.31655901568018)
+  (0.00314317146000314,1.32027391787363)
+  (0.00319335781574325,1.32458154294324)
+  (0.00324517280545189,1.32952990857193)
+  (0.0032986970146792,1.33517591499043)
+  (0.00335401643468053,1.34158405472425)
+  (0.00341122292341805,1.3495921480303)
+  (0.00347041471455839,1.35815811082881)
+  (0.00353169698039908,1.36732658916564)
+  (0.00359518245550962,1.37714654402505)
+  (0.00366099212886692,1.38767174921412)
+  (0.00372925601342532,1.40012828227313)
+  (0.0038001140034201,1.41289807690861)
+  (0.00387371683129963,1.42598985245615)
+  (0.00395022713806044,1.43941225312393)
+  (0.00402982067298005,1.45317376190383)
+  (0.00411268764137364,1.46728259397412)
+  (0.00419903422212891,1.48174656509563)
+  (0.00428908428050611,1.49657292947234) )
.ENDS
*$
$
.SUBCKT PTCSL03T141 Rn Rp Ti
X Rn Rp Ti invK LnLn PTCSL03_BASE PARAMs: tsw=140 cth=0.026 k=0.001 gth=5m tol=0 tmin=-40
+  tmax=180
E_E4         LNLN 0 TABLE { V(INVK, 0) }
+ ( (0.00228232340522652,2.41505506202227)
+  (0.00230866905229135,2.35647249832247)
+  (0.00233563003620227,2.28048137441315)
+  (0.00236322816967978,2.18588495095522)
+  (0.00239148630874088,2.08028324978133)
+  (0.0024204284158296,1.94697919033013)
+  (0.0024500796275879,1.75318496597384)
+  (0.0024804663276696,1.54197487161491)
+  (0.00251161622504081,1.42044523838723)
+  (0.00254355843825512,1.35658527918093)
+  (0.00257632358624243,1.31321203451327)
+  (0.00260994388620645,1.28160417324049)
+  (0.00264445325928864,1.25905133689693)
+  (0.00267988744472732,1.23971890355651)
+  (0.0027162841233193,1.22979885312085)
+  (0.00275368305108082,1.22101297950519)
+  (0.00279212620410443,1.21343566109444)
+  (0.00283165793572136,1.20718085827535)
+  (0.00287232514720666,1.20238199867044)
+  (0.00291417747340813,1.20140024176081)
+  (0.002957267484844,1.20112671329085)
+  (0.0030016509079994,1.20162699430817)
+  (0.00304738686576261,1.20297274769237)
+  (0.00309453814018258,1.20524235245071)
+  (0.00314317146000314,1.20913655957636)
+  (0.00319335781574325,1.21385850048111)
+  (0.00324517280545189,1.21947980524279)
+  (0.0032986970146792,1.2260825025024)
+  (0.00335401643468053,1.23375955013858)
+  (0.00341122292341805,1.24368224740767)
+  (0.00347041471455839,1.25440191080687)
+  (0.00353169698039908,1.26598516046023)
+  (0.00359518245550962,1.27850519274386)
+  (0.00366099212886692,1.29204254863369)
+  (0.00372925601342532,1.30750625459238)
+  (0.0038001140034201,1.3238110815361)
+  (0.00387371683129963,1.3410209175015)
+  (0.00395022713806044,1.3592059075785)
+  (0.00402982067298005,1.37844320859824)
+  (0.00411268764137364,1.39881785258893)
+  (0.00419903422212891,1.4204237373334)
+  (0.00428908428050611,1.4433647659197) )
.ENDS
*$
$
.SUBCKT PTCSL03T151 Rn Rp Ti
X Rn Rp Ti invK LnLn PTCSL03_BASE PARAMs:tsw=150 cth=0.026 k=0.001 gth=5m tol=+25 tmin=-40
+  tmax=180
E_E4         LNLN 0 TABLE { V(INVK, 0) }
+ ( (0.00228232340522652,2.29281533430176)
+  (0.00230866905229135,2.18212022781948)
+  (0.00233563003620227,2.05066712995176)
+  (0.00236322816967978,1.89706534217947)
+  (0.00239148630874088,1.72621746522634)
+  (0.0024204284158296,1.5917288671472)
+  (0.0024500796275879,1.50360944906821)
+  (0.0024804663276696,1.44171802028994)
+  (0.00251161622504081,1.39868976694667)
+  (0.00254355843825512,1.36818568785172)
+  (0.00257632358624243,1.34452185808579)
+  (0.00260994388620645,1.32666950880871)
+  (0.00264445325928864,1.31377024314024)
+  (0.00267988744472732,1.30326929992626)
+  (0.0027162841233193,1.2995287095056)
+  (0.00275368305108082,1.29673528771365)
+  (0.00279212620410443,1.29495017330882)
+  (0.00283165793572136,1.29426298787538)
+  (0.00287232514720666,1.29477817294214)
+  (0.00291417747340813,1.29826913922831)
+  (0.002957267484844,1.30241216266634)
+  (0.0030016509079994,1.30726168332475)
+  (0.00304738686576261,1.31287701121453)
+  (0.00309453814018258,1.31932282496612)
+  (0.00314317146000314,1.32863400948472)
+  (0.00319335781574325,1.33804199438048)
+  (0.00324517280545189,1.34753053128555)
+  (0.0032986970146792,1.3570923016292)
+  (0.00335401643468053,1.36671510147029)
+  (0.00341122292341805,1.37503384708098)
+  (0.00347041471455839,1.3840055257485)
+  (0.00353169698039908,1.39368436330905)
+  (0.00359518245550962,1.40412992194463)
+  (0.00366099212886692,1.41540772254858)
+  (0.00372925601342532,1.42902148924758)
+  (0.0038001140034201,1.44298594979921)
+  (0.00387371683129963,1.45731161096554)
+  (0.00395022713806044,1.47200901436861)
+  (0.00402982067298005,1.48708865827305)
+  (0.00411268764137364,1.50256089942705)
+  (0.00419903422212891,1.51843583048676)
+  (0.00428908428050611,1.53472312751071) )
.ends
*$
.SUBCKT PTCSL03T161 Rn Rp Ti
X Rn Rp Ti invK LnLn PTCSL03_BASE PARAMs:tsw=160 cth=0.026 k=0.001 gth=5m tol=25 tmin=-40  tmax=205
E_E4         LNLN 0 TABLE { V(INVK, 0) }
+ ( (0.00211349466342597,2.45732238898154)
+  (0.00213606749973299,2.42057262740608)
+  (0.00215912771240419,2.37825802028387)
+  (0.00218269125832151,2.33003845120239)
+  (0.0022067747986318,2.27731897287527)
+  (0.00223139573803414,2.21441204327621)
+  (0.00225657226672684,2.15325641587532)
+  (0.00228232340522652,2.05537863284823)
+  (0.00230866905229135,1.91826952900567)
+  (0.00233563003620227,1.7850814893256)
+  (0.00236322816967978,1.66331780079548)
+  (0.00239148630874088,1.56743353939949)
+  (0.0024204284158296,1.49227872978797)
+  (0.0024500796275879,1.45959310258448)
+  (0.0024804663276696,1.43138077598952)
+  (0.00251161622504081,1.40801185102621)
+  (0.00254355843825512,1.39981457844242)
+  (0.00257632358624243,1.3927128097822)
+  (0.00260994388620645,1.38680125657133)
+  (0.00264445325928864,1.38218241667561)
+  (0.00267988744472732,1.37896728451687)
+  (0.0027162841233193,1.37997572084742)
+  (0.00275368305108082,1.38140104178295)
+  (0.00279212620410443,1.38327723164709)
+  (0.00283165793572136,1.38564114848217)
+  (0.00287232514720666,1.38853279953598)
+  (0.00291417747340813,1.39266663141268)
+  (0.002957267484844,1.39711340845524)
+  (0.0030016509079994,1.40189593588165)
+  (0.00304738686576261,1.40703894808508)
+  (0.00309453814018258,1.41256930024525)
+  (0.00314317146000314,1.41825604219946)
+  (0.00319335781574325,1.42450858649406)
+  (0.00324517280545189,1.43137348062409)
+  (0.0032986970146792,1.43890161756145)
+  (0.00335401643468053,1.44714870878894)
+  (0.00341122292341805,1.45734280026222)
+  (0.00347041471455839,1.46786170809545)
+  (0.00353169698039908,1.47872107827477)
+  (0.00359518245550962,1.48993756750794)
+  (0.00366099212886692,1.50152892507946)
+  (0.00372925601342532,1.51385284058565)
+  (0.0038001140034201,1.52644088302295)
+  (0.00387371683129963,1.53929630492117)
+  (0.00395022713806044,1.55242164136037)
+  (0.00402982067298005,1.5658185375452)
+  (0.00411268764137364,1.579487542495)
+  (0.00419903422212891,1.59342786197786)
+  (0.00428908428050611,1.60763706230589) )
.ENDS
*$

Credits

alainstas
69 projects • 37 followers
product marketing engineer at Vishay. began to simulate in spice programs in 2014.
Contact

Comments

Please log in or sign up to comment.