zener_test_model_9V1.ngjs

#!/usr/bin/env ngspicejs
// Draw V-A curve using ZENER_C9V1ST model from the model/DIODE/ZENER_C9V1ST.sub
// linter: ngspicejs-lint
"use strict";

// Simulate circuit
pwl('U1', 1, 0).shape([[0, 0.8], [0.020, 16]]);
ammeter('A1', 1, 2);
resistor('R1', 2, 3, 330);
var d1 = diode('D1', 0, 3, 'ZENER_C9V1ST');
var t = tran().run();

// Load table of measured reverse voltages and currents (for comparison)
var csv = file_read_csv('ZENER_C9V1ST_REVERSE.csv');
var volts = csv.column(0, 1).map(parseFloat);
var amps = csv.column(1, 1).map(parseFloat);

// log chart
chart_xy()
    .min_x(4)
    .max_x(10)
    .min_y(1e-6)
    .max_y(0.025)
    .label_x('Vr/V')
    .label_y('Ir/A')
    .log_x(true)
    .log_y(true)
    .title(d1.attr.model + ' - Reverse V-A characteristic (logarithmic)')
    .add_series(t.data['V(3)'], t.data['I(A1)'].clamp(1e-7, 999), 'simulated')
    .add_series(volts, amps, 'measured')
    .show();
// chart linear
chart_xy()
    .min_x(4)
    .max_x(10)
    .min_y(1e-6)
    .max_y(0.025)
    .label_x('Vr/V')
    .label_y('Ir/A')
    .title(d1.attr.model + ' - Reverse V-A characteristic')
    .add_series(t.data['V(3)'], t.data['I(A1)'].clamp(1e-7, 999), 'simulated')
    .add_series(volts, amps, 'measured')
    .show();