Round to Electronic Component Values软件

Round numeric array values to the best matching IEC 60063 resistor values (E-Series).

软件应用简介

ROUND60063 rounds numeric values to the standard electronic component values defined in IEC 60063 (i.e. resistor, capacitor, and inductor values). The input may be a numeric scalar/vector/matrix/ND-array. The most appropriate rounded values are picked by calculating the rounding bin edges to approximate component tolerance boundaries. ROUND60063 returns the rounded values, the E-series values, the corresponding bin edges and indices. Supports E-series E3/E6/E12/E24/E48/E96/E192, eg E6 = […,10,15,22,33,47,68,100,150,220,…].

### Bonus Functions ###

The bonus function ROUND60063_VIEW creates a figure that demonstrates how ROUND60063’s rounding bin edges match the component tolerances. The rounding bin edges are calculated using the harmonic mean of adjacent E-series values.

The bonus function NUM2CIRCUIT uses an exhaustive search to find the component values whose equivalent circuit value is closest to the input value. The circuit can be either a parallel or series circuit (of resistors, capacitors, or inductors).

### Examples ###

>> round60063(500, ‘E12’)

ans = 470

>> round60063([5,42,18,100], ‘E12’)

ans = [4.7, 39, 18, 100]

>> round60063([5,42,18,100], ‘E6’) % default = ‘harmonic’

ans = [4.7, 47, 22, 100]

>> round60063([5,42,18,100], ‘E6’, ‘up’)

ans = [6.8, 47, 22, 100]

>> round60063([5,42,18,100], ‘E6’, ‘down’)

ans = [4.7, 33, 15, 100]

>> round60063([5,42,18,100], ‘E6’, ‘arithmetic’)

ans = [4.7, 47, 15, 100]

>> [Y,pns,edg,idx] = round60063([5,42,18,100], ‘E3’)

Y = [4.7, 47, 22, 100]

pns = [4.7; 10; 22; 47; 100]

edg = [2.997; 6.395; 13.75; 29.97; 63.95; 137.5]

idx = [1, 4, 3, 5]

>> [Y,pns,edg,idx] = round60063([-Inf,Inf,NaN; -1, 0, 1], ‘E3’)

Y = [NaN, NaN, NaN; NaN, NaN, 1]

pns = 1

edg = [0.63946; 1.375]

idx = [NaN, NaN, NaN; NaN, NaN, 1]