Simulatore Circuito RLC AC by @fammattera - Codewith.it

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<!DOCTYPE html>
<html lang="it">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Simulatore Circuito RLC AC</title>
    <script src="https://cdn.tailwindcss.com"></script>
    <style>
        body {
            background-color: #0f172a;
            color: #f1f5f9;
        }
        .canvas-container {
            position: relative;
            width: 100%;
            height: 400px;
            background: #1e293b;
            border-radius: 0.75rem;
            overflow: hidden;
            border: 1px solid #334155;
        }
        input[type=range] {
            accent-color: #3b82f6;
        }
        .value-display {
            font-family: monospace;
            color: #3b82f6;
        }
        .resonance-glow {
            box-shadow: 0 0 20px rgba(59, 130, 246, 0.5);
            border: 2px solid #60a5fa;
        }
        .circuit-bg {
            background: #1e293b;
            border: 1px solid #334155;
        }
        .circuit-label {
            font-size: 12px;
            fill: #94a3b8;
            font-family: sans-serif;
        }
        .circuit-value {
            font-size: 14px;
            fill: #60a5fa;
            font-weight: bold;
            font-family: monospace;
        }
    </style>
</head>
<body class="p-4 md:p-8">
    <div class="max-w-6xl mx-auto">
        <header class="mb-8 text-center">
            <h1 class="text-3xl font-bold mb-2">Simulatore Laboratorio RLC (AC)</h1>
            <p class="text-slate-400">Analisi della risposta in frequenza e risonanza in un circuito serie</p>
        </header>

        <div class="grid grid-cols-1 lg:grid-cols-3 gap-8">
            <!-- Pannello Controlli e Schema -->
            <div class="space-y-6">
                <!-- Schema del Circuito -->
                <div class="circuit-bg p-4 rounded-xl">
                    <h3 class="text-sm font-semibold text-slate-400 mb-2 uppercase text-center">Schema del Circuito</h3>
                    <svg viewBox="0 0 400 220" class="w-full h-auto">
                        <!-- Linee di collegamento -->
                        <path d="M 50 110 L 50 50 L 120 50 M 180 50 L 220 50 M 280 50 L 350 50 L 350 100 M 350 110 L 350 170 L 50 170 L 50 110" 
                              fill="none" stroke="#64748b" stroke-width="3" />
                        
                        <!-- Generatore AC -->
                        <circle cx="50" cy="110" r="20" fill="#1e293b" stroke="#facc15" stroke-width="3" />
                        <path d="M 42 110 Q 46 100 50 110 T 58 110" fill="none" stroke="#facc15" stroke-width="2" />
                        <text x="0" y="115" class="circuit-label">fem(t)</text>
                        <text x="15" y="140" id="diag-V" class="circuit-value">10V</text>

                        <!-- Resistore (R) -->
                        <path d="M 120 50 L 125 40 L 135 60 L 145 40 L 155 60 L 165 40 L 175 60 L 180 50" 
                              fill="none" stroke="#ef4444" stroke-width="3" />
                        <text x="140" y="20" class="circuit-label text-center">R</text>
                        <text x="130" y="85" id="diag-R" class="circuit-value">100Ω</text>

                        <!-- Induttore (L) -->
                        <path d="M 220 50 C 220 20, 235 20, 235 50 C 235 20, 250 20, 250 50 C 250 20, 265 20, 265 50 C 265 20, 280 20, 280 50" 
                              fill="none" stroke="#10b981" stroke-width="3" />
                        <text x="245" y="20" class="circuit-label">L</text>
                        <text x="235" y="85" id="diag-L" class="circuit-value">100mH</text>

                        <!-- Condensatore (C) -->
                        <path d="M 350 110 L 330 110 M 370 110 L 350 110 M 350 100 L 330 100 M 370 100 L 350 100" 
                              fill="none" stroke="#3b82f6" stroke-width="3" />
                        <text x="375" y="115" class="circuit-label">C</text>
                        <text x="310" y="155" id="diag-C" class="circuit-value">50µF</text>
                    </svg>
                </div>

                <div class="bg-slate-800 p-6 rounded-xl border border-slate-700 space-y-6">
                    <h2 class="text-xl font-semibold border-b border-slate-700 pb-2">Parametri</h2>
                    
                    <div>
                        <div class="flex justify-between mb-1">
                            <label>Tensione Picco (V)</label>
                            <span id="vVal" class="value-display">10.0 V</span>
                        </div>
                        <input type="range" id="vInput" min="1" max="50" step="0.5" value="10" class="w-full">
                    </div>

                    <div>
                        <div class="flex justify-between mb-1">
                            <label>Frequenza (Hz)</label>
                            <span id="fVal" class="value-display">50.0 Hz</span>
                        </div>
                        <input type="range" id="fInput" min="1" max="200" step="1" value="50" class="w-full">
                    </div>

                    <div>
                        <div class="flex justify-between mb-1">
                            <label>Resistenza (Ω)</label>
                            <span id="rVal" class="value-display">100 Ω</span>
                        </div>
                        <input type="range" id="rInput" min="10" max="1000" step="10" value="100" class="w-full">
                    </div>

                    <div>
                        <div class="flex justify-between mb-1">
                            <label>Induttanza (mH)</label>
                            <span id="lVal" class="value-display">100 mH</span>
                        </div>
                        <input type="range" id="lInput" min="10" max="1000" step="10" value="200" class="w-full">
                    </div>

                    <div>
                        <div class="flex justify-between mb-1">
                            <label>Capacità (μF)</label>
                            <span id="cVal" class="value-display">50 μF</span>
                        </div>
                        <input type="range" id="cInput" min="1" max="200" step="1" value="50" class="w-full">
                    </div>
                </div>
            </div>

            <!-- Visualizzazione Grafica -->
            <div class="lg:col-span-2 space-y-6">
                <div class="canvas-container" id="plotContainer">
                    <canvas id="rlcCanvas"></canvas>
                    <div class="absolute top-4 left-4 bg-slate-900/80 p-3 rounded text-sm border border-slate-700">
                        <div class="flex items-center gap-2">
                            <div class="w-3 h-3 bg-yellow-400 rounded-full"></div>
                            <span>Tensione (V)</span>
                        </div>
                        <div class="flex items-center gap-2 mt-1">
                            <div class="w-3 h-3 bg-blue-400 rounded-full"></div>
                            <span>Corrente (A x10)</span>
                        </div>
                    </div>
                    <div id="resonanceBadge" class="hidden absolute top-4 right-4 bg-blue-600 text-white px-3 py-1 rounded-full text-xs font-bold animate-pulse">
                        RISONANZA RAGGIUNTA
                    </div>
                </div>

                <!-- Pannello Dati Tecnici -->
                <div class="grid grid-cols-2 md:grid-cols-4 gap-4">
                    <div class="bg-slate-800 p-4 rounded-lg border border-slate-700">
                        <div class="text-slate-400 text-xs uppercase text-[10px]">Impedenza (Z)</div>
                        <div id="zOut" class="text-xl font-mono text-blue-400">0.00 Ω</div>
                    </div>
                    <div class="bg-slate-800 p-4 rounded-lg border border-slate-700">
                        <div class="text-slate-400 text-xs uppercase text-[10px]">Reattanza Induttiva</div>
                        <div id="xlOut" class="text-xl font-mono text-blue-400">0.00 Ω</div>
                    </div>
                    <div class="bg-slate-800 p-4 rounded-lg border border-slate-700">
                        <div class="text-slate-400 text-xs uppercase text-[10px]">Reattanza Capacitiva</div>
                        <div id="xcOut" class="text-xl font-mono text-blue-400">0.00 Ω</div>
                    </div>
                    <div class="bg-slate-800 p-4 rounded-lg border border-slate-700">
                        <div class="text-slate-400 text-xs uppercase text-[10px]">Freq. Risonanza</div>
                        <div id="f0Out" class="text-xl font-mono text-yellow-400">0.00 Hz</div>
                    </div>
                </div>
            </div>
        </div>
    </div>

    <script>
        const canvas = document.getElementById('rlcCanvas');
        const ctx = canvas.getContext('2d');
        const container = document.getElementById('plotContainer');

        const inputs = {
            v: document.getElementById('vInput'),
            f: document.getElementById('fInput'),
            r: document.getElementById('rInput'),
            l: document.getElementById('lInput'),
            c: document.getElementById('cInput')
        };

        const displays = {
            v: document.getElementById('vVal'),
            f: document.getElementById('fVal'),
            r: document.getElementById('rVal'),
            l: document.getElementById('lVal'),
            c: document.getElementById('cVal'),
            z: document.getElementById('zOut'),
            xl: document.getElementById('xlOut'),
            xc: document.getElementById('xcOut'),
            f0: document.getElementById('f0Out'),
            resonance: document.getElementById('resonanceBadge'),
            // Diagramma SVG
            diagV: document.getElementById('diag-V'),
            diagR: document.getElementById('diag-R'),
            diagL: document.getElementById('diag-L'),
            diagC: document.getElementById('diag-C')
        };

        let time = 0;

        function resize() {
            canvas.width = container.clientWidth;
            canvas.height = container.clientHeight;
        }

        window.addEventListener('resize', resize);
        resize();

        function calculatePhysics() {
            const Vp = parseFloat(inputs.v.value);
            const f = parseFloat(inputs.f.value);
            const R = parseFloat(inputs.r.value);
            const L_mH = parseFloat(inputs.l.value);
            const C_uF = parseFloat(inputs.c.value);
            
            const L = L_mH / 1000;
            const C = C_uF / 1000000;

            const omega = 2 * Math.PI * f;
            const X_L = omega * L;
            const X_C = 1 / (omega * C);
            const X_total = X_L - X_C;
            const Z = Math.sqrt(R*R + X_total*X_total);
            const Ip = Vp / Z;
            const phase = Math.atan2(X_total, R);
            const f0 = 1 / (2 * Math.PI * Math.sqrt(L * C));

            // Aggiorna Testi UI
            displays.v.textContent = `${Vp.toFixed(1)} V`;
            displays.f.textContent = `${f.toFixed(1)} Hz`;
            displays.r.textContent = `${R} Ω`;
            displays.l.textContent = `${L_mH.toFixed(0)} mH`;
            displays.c.textContent = `${C_uF.toFixed(0)} μF`;
            
            displays.z.textContent = `${Z.toFixed(2)} Ω`;
            displays.xl.textContent = `${X_L.toFixed(2)} Ω`;
            displays.xc.textContent = `${X_C.toFixed(2)} Ω`;
            displays.f0.textContent = `${f0.toFixed(2)} Hz`;

            // Aggiorna Diagramma SVG
            displays.diagV.textContent = `${Vp.toFixed(0)}V`;
            displays.diagR.textContent = `${R}Ω`;
            displays.diagL.textContent = `${L_mH.toFixed(0)}mH`;
            displays.diagC.textContent = `${C_uF.toFixed(0)}µF`;

            const isResonant = Math.abs(f - f0) < (f0 * 0.05);
            if (isResonant) {
                displays.resonance.classList.remove('hidden');
                container.classList.add('resonance-glow');
            } else {
                displays.resonance.classList.add('hidden');
                container.classList.remove('resonance-glow');
            }

            return { Vp, f, Ip, phase, omega };
        }

        function draw() {
            const { Vp, f, Ip, phase, omega } = calculatePhysics();
            ctx.clearRect(0, 0, canvas.width, canvas.height);
            
            ctx.strokeStyle = '#334155';
            ctx.lineWidth = 1;
            ctx.beginPath();
            ctx.moveTo(0, canvas.height / 2);
            ctx.lineTo(canvas.width, canvas.height / 2);
            ctx.stroke();

            const centerY = canvas.height / 2;
            const scaleX = canvas.width / 0.05; 
            const vScale = (canvas.height * 0.4) / 50; 

            // Onda Tensione
            ctx.beginPath();
            ctx.strokeStyle = '#facc15';
            ctx.lineWidth = 3;
            for (let x = 0; x < canvas.width; x++) {
                const t = x / scaleX + time;
                const y = centerY - Math.sin(omega * t) * Vp * vScale;
                if (x === 0) ctx.moveTo(x, y);
                else ctx.lineTo(x, y);
            }
            ctx.stroke();

            // Onda Corrente
            ctx.beginPath();
            ctx.strokeStyle = '#60a5fa';
            ctx.setLineDash([5, 5]);
            ctx.lineWidth = 2;
            for (let x = 0; x < canvas.width; x++) {
                const t = x / scaleX + time;
                const y = centerY - Math.sin(omega * t - phase) * Ip * 10 * vScale; 
                if (x === 0) ctx.moveTo(x, y);
                else ctx.lineTo(x, y);
            }
            ctx.stroke();
            ctx.setLineDash([]);

            time += 0.0001; 
            requestAnimationFrame(draw);
        }

        draw();
    </script>
</body>
</html>