012_rttemp_transient_change : Stability analysis
Requires: SmartSpice & Smartview
Minimum Versions: SMARTSPICE 3.17.26.C
This input deck shows how to change current temperature during a transient analysis using .RTTEMP statement with PWL function. PWL can contain expressions.
This input deck shows how to change current temperature during a transient analysis using .RTTEMP statement with PWL function. PWL can contain expressions. shows how to change current temperature during a transient analysis using .RTTEMP statement. .RTTEMP statement saves 'temp' vector into a raw file.
Input Files
rttemp_const_val.in
.rttemp testing ************************** VIN 1 0 DC 0 SIN(0 0.1 5MEG) AC 1 VCC 8 0 DC 10 VEE 9 0 DC -12 RS1 1 2 1K RS2 5 0 1K RC1 3 8 10K RC2 4 8 10K RBIAS 7 8 20K CLOAD 3 4 5PF Q1 3 2 6 QNL Q2 4 5 6 QNL Q3 6 7 9 QNL Q4 7 7 9 QNL .MODEL QNL NPN(BF=80 RB=100 CCS=2PF TF=0.3NS TR=6NS CJE=3PF CJC=2PF VA=50) .TRAN 5NS 10u .OPTIONS nomod nodeck method=gear .probe i(vee) .rttemp 60 3u 90 6u .measure tran min_cur_VEE_at27temp min i(vee) from=1u to=2u .measure tran min_cur_VEE_at60temp min i(vee) from=3u to=4u .measure tran min_cur_VEE_at90temp min i(vee) from=6u to=7u .measure tran max_cur_VEE_at27temp max i(vee) from=1u to=2u .measure tran max_cur_VEE_at60temp max i(vee) from=3u to=4u .measure tran max_cur_VEE_at90temp max i(vee) from=6u to=7u .measure tran avg_cur_VEE_at27temp avg i(vee) from=1u to=2u .measure tran avg_cur_VEE_at60temp avg i(vee) from=3u to=4u .measure tran avg_cur_VEE_at90temp avg i(vee) from=6u to=7u .measure tran temp_avg27temp avg temp from=1u to=2u .measure tran temp_avg60temp avg temp from=3u to=4u .measure tran temp_avg90temp avg temp from=6u to=7u .END
rttemp_pwl_param.in
.rttemp example with expressions in PWL ********************************************* VIN 1 0 DC 0 SIN(0 0.1 5MEG) AC 1 VCC 8 0 DC 10 VEE 9 0 DC -12 RS1 1 2 1K RS2 5 0 1K RC1 3 8 10K RC2 4 8 10K RBIAS 7 8 20K CLOAD 3 4 5PF Q1 3 2 6 QNL Q2 4 5 6 QNL Q3 6 7 9 QNL Q4 7 7 9 QNL .MODEL QNL NPN(BF=80 RB=100 CCS=2PF TF=0.3NS TR=6NS CJE=3PF CJC=2PF + VA=50) .TRAN 5NS 1u .OPTIONS nomod nodeck method=gear .probe i(vee) .PARAM t1=27 t2=50 t3=120 dt=50n time1=200n time2=600n time3=900n time4=1u .RTTEMP PWL (0 t1 "time1-dt" t1 time1 t2 "time2-dt" t2 time2 t3 time3 t3) .measure tran cur_vee_minT1_27 min i(vee) from=0n to=150n .measure tran cur_vee_minT2_50 min i(vee) from=200n to=550n .measure tran cur_vee_minT3_120 min i(vee) from=600n to=850n .measure tran temp_avgT1_27 avg temp from=0n to=50n .measure tran temp_avgT2_50 avg temp from=200n to=250n .measure tran temp_avgT3_120 avg temp from=600n to=650n .END
Graphics
