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Update transformer.html

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miguel 2023-06-05 22:52:51 +10:00
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commit 6bb1808980
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transformer.html
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@ -7,7 +7,7 @@
<link rel="stylesheet" href="toroid.css">
</head>
<body>
<header>Miguel <a href="mailto:vk3cpu@gmail.com">VK3CPU</a> - RF Transformer Calc v0.1<br></header>
<header><a href="mailto:vk3cpu@gmail.com">VK3CPU</a> - RF Transformer Calc v0.1<br></header>
<section class="gridLayoutClass">
<div id="chart-container" class="chart-container">
<canvas id="chartCanvas" class="chartCanvasClass">
@ -79,7 +79,7 @@
<li>Np : Number of turns for the primary Winding. (Defaults to 20 turns.)</li>
<li>Ns : Number of turns for the secondary Winding. (Defaults to 20 turns.) </li>
<li>P : The input power in watts. (Defaults to 100 W)</li>
<li>Zl : Load impedance in ohms. (Defaults to 50 ohms.) </li>
<li>Zl : Load impedance in ohms. (Defaults to 2550 ohms.) </li>
<li>Cin : Additional primary capacitance 0 - 200 pF. (Defaults to 0 pF.) </li>
</ul>
<i>Note: Manufacturers recommend keeping the number of turns (N) to a minimum.</i><br><br>
@ -773,7 +773,7 @@
let Z2 = math.complex(R2, w*L2);
let ZCp = math.complex(0.0, -1.0/(w*Cp));
let Zp = math.complex(Rp, Xp);
//let ZRp = math.complex(Rp, 0.0);
//let ZRp = math.complex(Rp, 0.0);
//let ZLp = math.complex(0.0, Xp);
//let Zp = math.divide(math.multiply(ZRp, ZLp), math.add(ZRp, ZLp));
let ZCs = math.complex(0.0, -1.0/(w*Cs));
@ -794,9 +794,20 @@
let Z33 = math.add(math.unaryMinus(math.inv(Z2)), math.unaryMinus(math.inv(Zlc)), math.unaryMinus(math.inv(ZCc)));
let ZZZ = math.matrix([[Z11, Z12, Z13], [Z21, Z22, Z23], [Z31, Z32, Z33]]);
let vvv = math.matrix([[2*this.Vrms/Z0], [zero], [zero]]);
let vvv = math.matrix([[this.Vrms/Z0], [zero], [zero]]);
let VVV = math.multiply(math.inv(ZZZ), vvv);
return [VVV.get([0,0]), VVV.get([1,0]), VVV.get([2,0])];
// Power dissipated in Z0:
//let PZ0 = math.divide(math.square(math.subtract(this.Vrms, VVV.get([0,0]))), Z0);
let PZ0 = math.subtract(this.Vrms, VVV.get([0,0])).toPolar().r**2 / Z0;
// Power dissipated in Rc:
let PRp = math.divide(math.square(VVV.get([1,0])), Rp); // Check this!
// Power dissipated in Zl:
let PZl = math.divide(math.square(VVV.get([2,0])), Zl);
// SWR: Calculate equivalent impedance of circuit as-seen from the source. Then use gamma eqn, followed by VSWR eqn:
return [VVV.get([0,0]), VVV.get([1,0]), VVV.get([2,0]), PZ0, PRp, PZl];
};
this.recalculate = function (frequencies) {
@ -889,14 +900,14 @@
//this.L_vs_f.push({x:freq, y:(mu[0] * 4.0 * Math.PI * this.N**2 * 1e-3 / this.core.CC)});
this.L_vs_f.push({x:freq, y:L*1e6}); // Convert H to uH
this.M_vs_f.push({x:freq, y:M*1e6}); // Convert H to uH
this.SWR_vs_f.push({x:freq, y:SWR});
this.eff_vs_f.push({x:freq, y:100.0 * eff});
//const IL = 20.0 * Math.log10(VVV[0]/VVV[3]);
//this.IL_vs_f.push({x:freq, y:IL});
const P0 = this.Vrms**2 / this.Z0; // (VVV[0].toPolar().r**2 / this.Z0);
const Pl = (VVV[2].toPolar().r**2 / (this.Zl*((this.Np/this.Ns)**2)));
const P0 = VVV[3]; //this.Vrms**2 / this.Z0; // (VVV[0].toPolar().r**2 / this.Z0);
const Pl = VVV[5].toPolar().r; //(VVV[2].toPolar().r**2 / (this.Zl*((this.Np/this.Ns)**2)));
this.P0_vs_f.push({x:freq, y:P0});
this.Pl_vs_f.push({x:freq, y:Pl});
const IL = 10.0 * Math.log10(P0/Pl);
@ -2015,6 +2026,13 @@
// Draw the primary-side capacitor:
x1 -= 35;
fctx.lineTo(x1, y1);
fctx.stroke();
fctx.strokeStyle = "black";
fctx.lineWidth = 1;
fctx.beginPath();
fctx.moveTo(x1, y1);
fctx.lineTo(x1, y1);
fctx.lineTo(x1, originY - 3);
fctx.moveTo(x1 - 10, originY - 3);
fctx.lineTo(x1 + 10, originY - 3);
@ -2022,6 +2040,13 @@
fctx.lineTo(x1 + 10, originY + 3);
fctx.moveTo(x1, originY + 3);
fctx.lineTo(x1, originY + outerRadius + 10);
fctx.stroke();
//fctx.restore();
fctx.lineCap = "round";
fctx.strokeStyle = "blue";
fctx.lineWidth = 2 * wireRadius;
fctx.beginPath();
fctx.moveTo(x1, originY + outerRadius + 10);
x1 += 35;
fctx.lineTo(x1, originY + outerRadius + 10);
fctx.stroke();
@ -2046,7 +2071,8 @@
}
// Right-hand exit wires:
//x1 = side_originX + outerRadius;
x1 = side_originX + 80;
const x_res = side_originX + width + 60;
x1 = x_res;
//x1 += 5;
y1 = originY - outerRadius - 10;
x2 += 5;
@ -2068,22 +2094,22 @@
// Draw the load resistor:
fctx.lineWidth = 1;
fctx.strokeRect(side_originX + 80 -8, originY - 20, 16, 40);
fctx.strokeRect(x_res -8, originY - 20, 16, 40);
fctx.beginPath();
fctx.moveTo(side_originX + 80, y2);
fctx.lineTo(side_originX + 80, originY+20);
fctx.moveTo(side_originX + 80, y1);
fctx.lineTo(side_originX + 80, originY-20);
fctx.moveTo(x_res, y2);
fctx.lineTo(x_res, originY+20);
fctx.moveTo(x_res, y1);
fctx.lineTo(x_res, originY-20);
fctx.stroke();
//fctx.textAlign = "right";
fctx.font = "12px arial";
fctx.textAlign = "center";
fctx.fillText("Z\u2097", side_originX + 80, originY);
fctx.fillText("Z\u2097", x_res, originY);
fctx.textAlign = "left";
var num = getMetricPrefix(controller.toroid.Zl);
fctx.fillText(num.val.toPrecision(3).toString() + ' ' + num.pfx + "\u03A9", side_originX + 95, originY);
fctx.fillText(num.val.toPrecision(3).toString() + ' ' + num.pfx + "\u03A9", x_res + 15, originY);
// Draw the Dimensions:
fctx.strokeStyle = "black";