Buck Converter Simulator

Interactive buck converter simulator with real-time waveform visualization and efficiency calculations

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About This Tool

This online buck converter simulation tool allows engineers, students, and hobbyists to analyze DC-DC buck converter performance. Input key parameters including input voltage, desired output voltage, switching frequency, inductance, capacitance, and load resistance. The tool calculates critical metrics like output current, ripple voltage, efficiency, and duty cycle while displaying real-time waveforms for inductor current and output voltage. All calculations use precise buck converter equations for accurate results.

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How to Use

Enter input parameters: Input voltage (Vin), Output voltage (Vout), Switching frequency (fsw), Inductance (L), Capacitance (C), Load resistance (Rload)
Click 'Run Simulation' to calculate results
View calculated metrics: Output current, Duty cycle, Ripple voltage, Efficiency
Examine real-time waveforms showing inductor current and output voltage
Adjust parameters and re-simulate to optimize design

Frequently Asked Questions

Find Quick Answers

What is a buck converter?

A buck converter is a DC-DC power converter that steps down voltage from its input to its output while stepping up current. It's commonly used in power supplies, battery chargers, and voltage regulators.

How accurate is this simulation?

The simulation uses standard buck converter equations for continuous conduction mode (CCM) and accounts for ideal components. It provides accurate theoretical calculations but doesn't include non-idealities like switch losses or parasitic elements.

What parameters affect efficiency the most?

Efficiency is primarily affected by switching frequency (higher frequencies increase switching losses), inductor quality (DC resistance), and MOSFET/Diode characteristics. Our simulation shows theoretical efficiency based on ideal components.

Can I simulate discontinuous conduction mode (DCM)?

Currently this tool simulates continuous conduction mode (CCM) only, which is the most common operating mode for buck converters. DCM simulation may be added in future updates.

Need to run multiple calculations?

Create a free account today to unlock unlimited daily runs, access advanced parameters, save your history, and request custom features.

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