* /home/fossee/esim-workspace/diode_characteristics/diode_characteristics.cir .include D.lib v1 in gnd dc 1 d1 in out 1N4148 r1 net-_r1-pad1_ gnd 1k * u1 out net-_r1-pad1_ plot_i2 v_u1 out net-_r1-pad1_ 0 * Schematic Name: zener, NgSpice Name: zener .model u1 zener(n_forward=1.0 v_breakdown=5.6 i_sat=1.0e-12 limit_switch=FALSE i_breakdown=2.0e-2 ) .dc v1 0e-00 1e-00 0.01e-00 * Control Statements .control run print allv > plot_data_v.txt print alli > plot_data_i.txt plot i(v_u1) .endc .end