Diode Circuit Simulator
Quick answer: A diode’s current-voltage relationship is nonlinear. The familiar fixed forward drop is a design approximation; current, temperature and the selected diode determine the real operating point.
User job: Connect diode orientation and bias to circuit current and node voltage.

Worked example
A 5 V source, 1 kΩ resistor and silicon diode may be approximated as (5 − 0.7)/1000 ≈ 4.3 mA, but the model and real part shift the forward voltage with current and temperature.
Step-by-step workflow
- Choose rectifier, clipper or clamp topology
- Set source and current-limiting values
- Check diode orientation
- Run supported DC or transient analysis
- Compare the operating point with part data
Outputs and deliverables
- Editable diode schematic
- Bias-state explanation
- Current-limited example
- Waveform comparison
- Part-rating checklist
Quality checks before issue
- Forward current has a limiting path
- Reverse voltage has margin
- Power and temperature are checked
- Recovery matters at the chosen frequency
- Polarity is visible in the drawing
Current product and engineering boundaries
- A generic diode model cannot represent every device.
- Breakdown and high-frequency behavior need appropriate models.
- Always verify absolute maximum ratings.
Reviewed 2026-07-30: Product capabilities are first-party facts. Engineering examples are educational and must be verified for the actual project, equipment and jurisdiction.
Frequently asked questions
What is Diode Circuit Simulator used for?
A diode’s current-voltage relationship is nonlinear. The familiar fixed forward drop is a design approximation; current, temperature and the selected diode determine the real operating point.
What does this workflow produce?
Editable diode schematic, Bias-state explanation, Current-limited example, Waveform comparison, Part-rating checklist.
What should be checked before using the result?
Forward current has a limiting path Reverse voltage has margin Power and temperature are checked Recovery matters at the chosen frequency Polarity is visible in the drawing
What does CircuitDiagramMaker not automate here?
A generic diode model cannot represent every device. Breakdown and high-frequency behavior need appropriate models. Always verify absolute maximum ratings.
Can I continue with an editable project?
Yes. The page links to the closest supported editor, template, calculator, component library, or engineering workspace action.
Open a diode circuit or inspect the current product capability matrix.