Electronics & Virtual Labs
Diode Behavior Lab
Synchronized schematic and physical diode workbench. Vary DC voltage and series resistance to trace diode conduction, observe Q-point load lines, compare Silicon vs. Schottky vs. LEDs, and inspect semiconductor equations.
Diode Behavior Lab
Non-Linear I–VExplore forward & reverse bias, Shockley exponential I–V curves, operating Q-points, and Schottky comparisons
Experiment 1: Forward-Bias the Silicon Diode
Set the supply to 5.0 V with a 1 kΩ resistor and observe the diode forward voltage drop and current.
Circuit Workbench
Diode Voltage (Vd):0.664 V
Resistor Drop (VR):4.336 V
Circuit Current (Id):4.34 mA
Diode State:Forward conducting
DC Supply Voltage:5.0 V
Series Current-Limiting Resistor:1 kΩ
Diode Type:
Diode I–V Characteristic CurveQ-Point: (0.66 V, 4.3 mA)
Mathematical Formulation & Engineering Notes
Shockley Diode Equation: I_d = I_s · (e^(V_d / (n · V_t)) − 1), where V_t = k·T / q ≈ 25.85 mV at 25°C.