kopia lustrzana https://github.com/miguelvaca/vk3cpu
Enable experimental Ceff and SRF calculation
miguel
rodzic
c7a8c6670f
commit
a36bb16587
113
toroid.html
113
toroid.html
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@ -109,8 +109,8 @@
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<li>Lᵢ : Initial inductance in microhenries. This is based on the initial permeability figure found in data sheets. For accuracy, use the frequency-dependent inductance displayed in the chart.</li>
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<li>Vrms : Excitation RMS voltage selected.</li>
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<li>Rdc : Wire resistance in ohms.</li>
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<li>Ceff : Experimental effective-capacitance calculation to determine SRF. (Under development so greyed-out.)</li>
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<li>SRF : Experimental self-resonant frequency prediction in MHz. (Under development so greyed-out.)</li>
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<li>Ceff : Experimental effective-capacitance calculation to determine SRF. (Under development so greyed-out. Based on David Knight's G3YNH work on the self-capacitance of toroidal inductors detailed <a href="https://www.g3ynh.info/zdocs/magnetics/appendix/Toroid_selfC.html">HERE</a>).</li>
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<li>SRF : Experimental self-resonant frequency prediction in MHz. (Under development so greyed-out. From the same paper detailed above.)</li>
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</ul>
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On the right are the manufacturers data for the selected material.
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<ul>
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@ -575,50 +575,17 @@
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return { real:Rs , imag:Xs };
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}
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function calculateInductance() {
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return toroid.L_vs_f;
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}
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function calculateImpedance() {
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return toroid.Z_vs_f;
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}
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function calculatePermeability1() {
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return toroid.mu1_vs_f;
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}
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function calculatePermeability2() {
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return toroid.mu2_vs_f;
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}
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function calculateResistance() {
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return toroid.R_vs_f;
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}
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function calculateReactance() {
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return toroid.X_vs_f;
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}
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function calculateQualityFactor() {
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return toroid.Q_vs_f;
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}
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function calculateCurrent() {
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return toroid.i_vs_f;
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}
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function calculatePowerLoss() {
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return toroid.P_vs_f;
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}
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function calculateH() {
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return toroid.H_vs_f;
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}
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function calculateB() {
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return toroid.B_vs_f;
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function getSRF() {
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// First, use the initial permeability to start:
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var mu = cores[material].mu_i;
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var c_0 = 3e8;
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var c_r = (1/Math.sqrt(mu)) * c_0;
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var srf = c_r / (2 * toroid.cond_length_meters);
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return srf;
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}
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// Solve all the parameters, and re-draw the canvas:
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function recalculate() {
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// Input variables:
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@ -635,6 +602,9 @@
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//toroid.cond_length_meters = toroid.N * (2*toroid.core.C + toroid.core.A - toroid.core.B) * 1e-3;
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toroid.cond_length_meters = 2e-3 * Math.sqrt ( (Math.PI * 0.5 * (toroid.core.A + toroid.core.B))**2 + (toroid.N * (2*toroid.core.C + toroid.core.A - toroid.core.B))**2 );
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toroid.cond_length_meters = 2e-3 * Math.sqrt ( (Math.PI * 0.5 * (toroid.core.A + toroid.core.B))**2 + (toroid.N * (2*(toroid.cond_diameter_meters*1e3) + 2*toroid.core.C + toroid.core.A - toroid.core.B))**2 );
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//toroid.cond_length_meters2 = 2 * Math.PI * M ((2*(h+w)+8*rcw*M)*(L-0.5*M)+ 1.333 * rcw*(1-M**2));
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toroid.Rdc = 1.68e-8 * toroid.cond_length_meters / (Math.PI * ((toroid.cond_diameter_meters*0.5)**2.0));
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@ -692,6 +662,50 @@
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drawDesign();
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}
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function calculateInductance() {
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return toroid.L_vs_f;
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}
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function calculateImpedance() {
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return toroid.Z_vs_f;
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}
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function calculatePermeability1() {
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return toroid.mu1_vs_f;
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}
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function calculatePermeability2() {
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return toroid.mu2_vs_f;
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}
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function calculateResistance() {
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return toroid.R_vs_f;
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}
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function calculateReactance() {
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return toroid.X_vs_f;
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}
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function calculateQualityFactor() {
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return toroid.Q_vs_f;
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}
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function calculateCurrent() {
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return toroid.i_vs_f;
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}
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function calculatePowerLoss() {
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return toroid.P_vs_f;
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}
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function calculateH() {
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return toroid.H_vs_f;
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}
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function calculateB() {
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return toroid.B_vs_f;
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}
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function setMode() {
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var modes = document.getElementsByName("modes");
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t_mode = modes[0].value;
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@ -1158,9 +1172,14 @@
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fctx.fillText("Rdc = " + toroid.Rdc.toFixed(3) + " \u03A9", 8, 32);
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fctx.fillText("Vrms = " + toroid.Vrms.toFixed(2) + " V", 8, 46);
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fctx.fillStyle = "lightgrey";
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fctx.fillText("Ceff = " + (toroid.C*1e12).toFixed(1) + " pF", 8, win_height - 28);
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fctx.fillText("SRF = " + (toroid.SRF*1e-6).toFixed(2) + " MHz", 8, win_height - 14);
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//fctx.fillStyle = "lightgrey";
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//fctx.fillText("Ceff = " + (toroid.C*1e12).toFixed(1) + " pF", 8, win_height - 28);
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//fctx.fillText("SRF = " + (toroid.SRF*1e-6).toFixed(2) + " MHz", 8, win_height - 14);
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//fctx.fillStyle = "lightgrey";
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fctx.fillStyle = "grey";
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fctx.fillText("Ceff \u2248 " + (toroid.C*1e12).toFixed(1) + " pF", 8, win_height - 28);
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fctx.fillText("SRF \u2248 " + (toroid.SRF*1e-6).toFixed(2) + " MHz", 8, win_height - 14);
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//fctx.fillText("SRF = " + (getSRF()*1e-6).toFixed(1) + " MHz", 8, win_height - 14);
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fctx.fillStyle = "black";
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fctx.textAlign = "center";
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