Class 12 Physics simulations · Semiconductor Electronics

Diode I–V characteristic

Sweep the voltage across a diode and trace its current.

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What to notice

Current rises sharply once forward voltage passes the knee; reverse current is tiny.

Key relation

I = I₀(e^(V/Vт) − 1)

Try this

Move through the knee voltage around 0.7 V.

What you can change

• Applied voltage: -1 to 1 V
• Knee voltage: 0.2 to 0.8 V

More in Semiconductor Electronics

• Electrons and holes in doped silicon
• P–N junction diode
• LED colour and band gap
• Logic gates
• Half-wave rectifier
• Rectifier with a smoothing capacitor
• Solar cell: I–V curve and maximum power
• Transistor as a switch
• Zener voltage regulator

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