Octave-Wcalc: air_coil_syn

air_coil_syn - Single layer air core solenoid inductor synthesis

SYNOPSIS

[N_out, len_out, fill_out] = air_coil_syn(L, len, fill, AWG, rho, dia, freq, flag)

PARAMETERS

INPUT PARAMETERS

  • L : Desired inductance (Henries)
  • len : length of the coil (meters)
  • fill : ratio of coil length to closewound length
  • AWG : wire size (American Wire Gauge)
  • rho : resistivity of wire (ohm-m)
  • dia : inside diameter of coil (meters)
  • freq : analysis frequency (Hertz)
  • flag : indicates which parameters should be optimized
    • flag=0 : the minimum number of turns is calculated along with the corresponding required length/fill. The diameter is held constant.
    • flag=1 : the number of turns is fixed at the value given and the required length/fill is calculated. The diameter is held constant.

OUTPUT VALUES

  • N_out : calculated required number of turns
  • len_out : calculated required length (meters)
  • fill_out : calculated required fill

DESCRIPTION

Function to synthesize the physical parameters of a single layer, uniformly spaced, air core, solenoid inductor. The physical dimensions of the coil are synthesized from an inductance specification.

EXAMPLE

 % we want 220 nH
L=220e-9;
 % we'll synthesize the number of turns
N=0;
 % we'll synthesize the length/fill
len=0;
 % we'll synthesize the length/fill
fill=0;
 % wire size
AWG=22;
 % Resistivity of copper (ohm-m)
rho=1.72e-8;
 % 0.25 inches inside diameter
dia=0.25*0.0254;
 % 10 MHz operation
f=10e6;
 % synthesize for minimum number of turns
flag=0;
[Nout,len_out,fill_out] = air_coil_syn(L,N,len,fill,AWG,rho,dia,f,flag);
disp(sprintf('Number of turns = %g ',Nout));
disp(sprintf('Length=%g inches',len_out/0.0254));
disp(sprintf('Fill=%g',fill_out));

SEE ALSO

air_coil_calc
air_coil_syn
coax_calc
coax_syn
coplanar_calc
coplanar_syn
coupled_microstrip_calc
coupled_microstrip_syn
coupled_stripline_calc
coupled_stripline_syn
ic_microstrip_calc
ic_microstrip_syn
microstrip_calc
microstrip_syn
stripline_calc
stripline_syn

AUTHOR

Dan McMahill

BUGS

None known

Please report any bugs on the Wcalc Sourceforge Project Page

Return to the Octave-Wcalc page.

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 Air Core Solenoid Inductor
 Parallel Rectangular Bars Inductance
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Misc. Info.
 Permeabilities
 Permitivities
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 Unit Conversion Factors
 Wire Sizes

   
Copyright © 2001, 2002, 2004, 2005, 2006 Dan McMahill ALL RIGHTS RESERVED.