CircuitLab Documentation

Table of Contents

• The Basics
  • Build Mode
  • Ground
  • Nodes
  • Named Nodes
  • Voltmeter and Ammeter
  • Human-Friendy Inputs
  • Plotting Outputs
  • DC Simulation
  • DC Sweep
  • Time-Domain Simulation
  • Frequency-Domain Simulation
  • Plot Cursors and Math Functions
• Keyboard Shortcuts
• Smart Wires
• Expressions
• Circuit Elements
  • Simulator-Wide Notes
  • Behavioral Voltage and Current Sources (experimental)
  • Bipolar Junction Transistors (BJTs)
  • Coupled Inductors
  • Digital Elements
  • Diodes
  • Junction Field Effect Transistors (JFETs)
  • Laplace Transfer Function Blocks
  • Metal-Oxide Semiconductor Field Effect Transistors (MOSFETs)
  • Operational Amplifiers (Op-Amps)
  • Zener Diodes
• Custom Device Models
• Custom Symbols
• Simulation Troubleshooting
• System Requirements
• Curriculum Resources

Check the Frequently Asked Questions.

CircuitLab Academy

This sequence of quick lessons helps new users get familiar with CircuitLab's major features fast.

• Lesson 1: Keyboard & Mouse Shortcuts to Draw Circuits Fast
• Lesson 2: Step Response in a Snap (Switches and Step Sources)
• Lesson 3: DC Sweep: Ideal vs. P-N Junction Diodes (I-V Plot Comparison)
• Lesson 4: Filters and Frequency Response (Bode Plot)
• Lesson 5: Analog Sensors and Custom Parameter Modeling (Pt100 RTD)
• Lesson 6: HV Voltage Multipliers with Diodes and Capacitors
• Lesson 7: Digital Logic, Gates, Clocks, and Memories
• Lesson 8: Digital Adders and Counters
• Lesson 9: Input and Output Impedance
• Lesson 10: Op-Amp Circuits Simulated Three Ways
• Lesson 11: Switch-Mode Power Supplies (DC-DC Boost Converter)
• Lesson 12: Define Components Algebraically (Behavioral Sources)
• Lesson 13: Simulate Feedback Systems with Laplace Blocks

Getting Help

Use the CircuitLab Forums!

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