Inductance Calculator

Values

Core and phisical constants

Core
Core parameters
A_min
mm2
Minimun magnetic cross section
B_max
mT
Max value of magnetic flux density
AL
nH/turn2
Inductance factor (permeability)
uo
V·s/A·m
Permeability of air
ro_cu
Ohm/m
Resistivity of copper at 20ºC
Cro_cu
1/ºC
Coefficient of resistivity of copper with temperature

Inductance Factor with Air Gap

g
mm
Air gap length of central arm
g_factor
%
Relative length of air gap (g/√A_min)
Fr_factor
 
Fringing factor of air gap (+-15% error)
AL_gap
nH/turn2
Inductance factor (permeability) of air gap
AL_total
nH/turn2
Total Inductance factor with gap

Inductance of coil

N
turns
Number of winding turns
L
uH
Coil Inductance
I_max
A
Maximum Inductor Current
E_max
uJ
Maximum Energy stored in Inductance

Maximum Voltage

f
kHz
Frequency
T
us
Period
V_sin
V
Maximum sine wave voltage (V_eff)
V_sq
V
Maximum square wave voltage (V_peak)