diff options
Diffstat (limited to 'Windows/spice/examples/TransmissionLines/txl3_1_line.sp')
| -rw-r--r-- | Windows/spice/examples/TransmissionLines/txl3_1_line.sp | 236 |
1 files changed, 236 insertions, 0 deletions
diff --git a/Windows/spice/examples/TransmissionLines/txl3_1_line.sp b/Windows/spice/examples/TransmissionLines/txl3_1_line.sp new file mode 100644 index 00000000..466c2591 --- /dev/null +++ b/Windows/spice/examples/TransmissionLines/txl3_1_line.sp @@ -0,0 +1,236 @@ + BJTdriver -- 24inch lossy line TXL model -- DiodeCircuit + +* This unclassified circuit is from Raytheon, courtesy Gerry Marino. +* It consists of a BJT driver connected by a 24 inch lossy line to a +* passive load consisting mostly of diodes. Each inch +* of the lossy line is modelled by 10 LRC lumps in the Raytheon +* model. + +* The line parameters (derived from the Raytheon input file) are: +* L = 9.13nH per inch +* C = 3.65pF per inch +* R = 0.2 ohms per inch + +* the circuit +v1 1 0 0v pulse(0 4 1ns 1ns 1ns 20ns 40ns) +vcc 10 0 5v +*rseries 1 2 5 +x1 1 2 10 bjtdrvr +*t1 2 0 3 0 z0=50.0136 td=4.38119ns rel=10 +y2 2 0 3 0 ymod1 +*x2 2 3 oneinch +*x2 100 101 twentyfourinch +*x2 100 101 xtwentyfourinch +vtest1 2 100 0 +vtest2 101 3 0 +x3 3 4 10 dioload +*rl 3 0 5 +*dl 0 3 diod2 + +.model ymod1 txl r=0.2 g=0 l=9.13e-9 c=3.65e-12 length=24 + +.model qmodn npn(bf=100 rb=100 cje=0.09375pF cjc=0.28125pF is=1e-12 ++pe=0.5 pc=0.5) + +.model qmodpd npn(bf=100 rb=100 cje=0.08187pF cjc=0.2525pF is=1e-12 ++pe=0.5 pc=0.5) +.model qmodpdmine npn(bf=100 rb=100 cje=0.08187pF cjc=0.05pF is=1e-12 ++pe=0.5 pc=0.5) + +.model dmod1 d(n=2.25 is=1.6399e-4 bv=10) + +.model dmod2 d + +.model dmod d(vj=0.3v) + +.model diod1 d(tt=0.75ns vj=0.6 rs=909 bv=10) + +.model diod2 d(tt=0.5ns vj=0.3 rs=100 bv=10) + +.options acct ++reltol=1e-3 abstol=1e-14 +.control +tran 0.1ns 60ns 0 0.5ns +plot v(1) v(2) v(3) +.endc + +* bjt driver - 19=input, 268=output, 20=vcc; wierd node numbers from +* the Raytheon file + +.subckt bjtdrvr 19 268 20 +q1 22 18 13 qmodn +q2 18 16 13 qmodn +qd2 21 9 0 qmodn +q4 14 14 0 qmodn +q3 16 15 14 qmodpd +q5 8 13 17 qmodn +q6 25 12 0 qmodn +q7 6 17 0 qmodpd +qd1 26 10 0 qmodn +q8 7 11 10 qmodn +q10 268 17 0 qmodpdmine +*q10 268 17 0 qmodpd +q9 7 10 268 qmodn + +d1 0 19 dmod1 +d2 18 19 dmod2 +d3 13 19 dmod +dq1 18 22 dmod +dq2 16 18 dmod +d502 9 21 dmod +dq3 15 16 dmod +d10 24 8 dmod +d4 15 6 dmod +dq6 12 25 dmod +dq7 17 6 dmod +dd1 17 10 dmod +d7 11 6 dmod +dd2 17 26 dmod +d9 23 6 dmod +dq8 11 7 dmod +d501 17 268 dmod +dq9 10 7 dmod +d14 20 27 dmod +d8 0 268 dmod + +r1 18 20 6k +r2 22 20 2.2k +r4 0 13 7k +rd1 9 13 2k +rd2 21 13 3k +r3 16 20 10k +r5 15 20 15k +r9 0 17 4k +r6 24 20 750 +r10 12 17 2k +r12 24 11 1.5k +r11 25 17 3k +r15 23 20 10k +r13 0 10 15k +r14 7 27 12 + +.ends bjtdrvr + +* subckt dioload - diode load: input=28, output=4, vcc=5 + +.subckt dioload 28 4 5 +*comment out everything in dioload except d5 and r503, and watch +* the difference in results obtained between a tran 0.1ns 20ns and +* a tran 0.01ns 20ns +c1 28 0 5pF +r503 0 4 5.55 +r4 0 28 120k +r5 1 5 7.5k + +d5 4 28 diod2 +d1 1 28 diod1 +d4 2 0 diod1 +d3 3 2 diod1 +d2 1 3 diod1 +.ends dioload + +* subckt lump - one RLC lump of the lossy line + +*10 segments per inch +.subckt lump 1 2 +*r1 1 3 0.02 +*c1 3 0 0.365pF +*l1 3 2 0.913nH + +l1 1 3 0.913nH +c1 2 0 0.365pF +r1 3 2 0.02 + +*r1 1 3 0.01 +*c1 3 0 0.1825pF +*l1 3 4 0.4565nH +*r2 4 5 0.01 +*c2 5 0 0.1825pF +*l2 5 2 0.4565nH + +*c1 1 0 0.365pF +*l1 1 2 0.913nH +.ends lump + +.subckt oneinch 1 2 +x1 1 3 lump +x2 3 4 lump +x3 4 5 lump +x4 5 6 lump +x5 6 7 lump +x6 7 8 lump +x7 8 9 lump +x8 9 10 lump +x9 10 11 lump +x10 11 2 lump +.ends oneinch + +.subckt fourinch 1 2 +x1 1 3 oneinch +x2 3 4 oneinch +x3 4 5 oneinch +x4 5 2 oneinch +.ends fourinch + +.subckt fiveinch 1 2 +x1 1 3 oneinch +x2 3 4 oneinch +x3 4 5 oneinch +x4 5 6 oneinch +x5 6 2 oneinch +.ends fiveinch + +.subckt twentyfourinch 1 2 +x1 1 3 fiveinch +x2 3 4 fiveinch +x3 4 5 fiveinch +x4 5 6 fiveinch +x5 6 2 fourinch +.ends twentyfourinch + +*modelling using R and lossless lines +*5 segments per inch +.model ymod2 txl r=0 g=0 l=9.13e-9 c=3.65e-12 length=0.2 +.subckt xlump 1 2 +y1 1 0 3 0 ymod2 +r1 2 3 0.04 +.ends xlump + +.subckt xoneinch 1 2 +x1 1 3 xlump +x2 3 4 xlump +x3 4 5 xlump +x4 5 6 xlump +x5 6 2 xlump +*x5 6 7 xlump +*x6 7 8 xlump +*x7 8 9 xlump +*x8 9 10 xlump +*x9 10 11 xlump +*x10 11 2 xlump +.ends xoneinch + +.subckt xfourinch 1 2 +x1 1 3 xoneinch +x2 3 4 xoneinch +x3 4 5 xoneinch +x4 5 2 xoneinch +.ends xfourinch + +.subckt xfiveinch 1 2 +x1 1 3 xoneinch +x2 3 4 xoneinch +x3 4 5 xoneinch +x4 5 6 xoneinch +x5 6 2 xoneinch +.ends xfiveinch + +.subckt xtwentyfourinch 1 2 +x1 1 3 xfiveinch +x2 3 4 xfiveinch +x3 4 5 xfiveinch +x4 5 6 xfiveinch +x5 6 2 xfourinch +.ends xtwentyfourinch + +.end |