Semiconductor Devices Workbench
Learn diode, Zener, LED, rectifier, BJT, MOSFET, transistor-switching, and semiconductor thermal behavior through guided operating-point models.
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How this tool works
Ten guided modules connect semiconductor equations to practical operating points, bias networks, switching losses, rectification, and thermal limits.
Every quantitative graph labels its measured quantity and unit, including volts, amperes, watts, seconds, ohms, and degrees Celsius.
All models run locally with bounded input ranges, fixed graph samples, and imported-state normalization.
Core equations
I=Iₛ(e^(V/(nVₜ))−1)I=(Vₛ−Vᴅ)/RR=(Vₛ−Vꜰ)/II_C≈βI_BI_D≈k(V_GS−V_TH)²/2Tⱼ=Tₐ+PθⱼₐAssumptions
- Diode and transistor models are educational approximations.
- BJT calculations use a fixed base-emitter drop and current gain.
- MOSFET calculations use a square-law long-channel model or fixed RDS(on).
- Thermal calculations are steady state.
Limitations
- Not a substitute for datasheet curves, SPICE, SOA analysis, transient thermal impedance, avalanche testing, EMC review, or laboratory verification.
- Reverse recovery, parasitic capacitance, breakdown, leakage variation, manufacturing spread, and switching transitions are simplified or omitted.
References and verification
- Sedra and Smith, Microelectronic CircuitsDiode, BJT, MOSFET, bias, and amplifier fundamentals.
- Horowitz and Hill, The Art of ElectronicsPractical semiconductor circuits and component behavior.