The Magnetics Keypad
(Just
the keypad is shown, the remainder of the calculator is unchanged, Click the
keypad to see the entire calculator and use your Web browser's Back
button to return to this page.)
A Magnetic
calculator for various solutions dealing with the design of transformers and
inductors
AWG:
AWG (American Wire Gauge) based on the insulated circular mil
area (CMA) of the wire. Input the AWG and display the insulated CMA, the bare CMA, the insulated diameter
in inches or mm, and the pound per feet. Displays
the AWG from the insulated wire diameter (in inches or mm). Right Click 'AWG' to
choose between the default Heavy (double) insulation or Single insulation.
W:
Calculates the DC Resistance based on the AWG in Ohms per feet (W/ft),
W/in, W/m, W/cm,
W/mm, or W/1000ft, and
will also displays the W/lb and grams/W.
Ls:
Calculate the
inductance of a single layer solenoid.
mtl: Calculate the mean turn length of a toroid based on core
dimensions, a rectangular bobbin or a round bobbin based on dimension.
Q: Calculate the Q of
MPP cores.
PL: Calculate the Core
Loss of ferrite cores.
mH: Inductance
vs n² Calculator
Pc: Calculate
core loss of MPP cores.
H:
Magnetizing Force Calculator
Hµ: Calculate the percent change in permeability
(µ) of MPP cores based on H and µ.
V-S: Calculate
Volt-Seconds of a core based on the measured saturation voltage and
frequency of measurement for sine wave or square wave excitation.
p: Eight constants involving pi
(3.1415..).
Bm: Flux Density
Calculator
Ø-B: Convert between Flux Capacity
(Øt) and Flux Density (Bm).
Øt: Calculate the flux
capacity of a core given the voltage, frequency, and turns.
Nø: Calculate turns based on V-S support and flux Capacity.
Lµ:
Inductance vs Permeability Calculator
µe: Solve for µe based on the AL value of
a core.
Bµ: Calculate the effective permeability of MPP cores based on
the operating AC flux density OR estimate the Leakage Flux (inductance
to be added to the nominal inductance) of a toroid based on core geometry and
turns.
'C': C
Core Calculator
Öx Square root of x. Ctrl+X
from the keyboard.
x²: x squared. Shift+Ctrl+X from the keyboard.
1/x: Reciprocal of x. X from the keyboard.
'dia' Given the diameter (or AWG) of a wire and the
number of wires, this functions calculates the size of a hole, sleeve or clamp
required to accommodate the wire bundle.
Most of the functions with more than one variable will solve for any
unknown if the other variables are entered.
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Last updated 04/30/2008
