Electromagnetics & Circuits
Power Electronics Simulators
A focused Electromagnetics & Circuits hub for power electronics tools, keeping related formulas, assumptions, and engineering checks together.
38 simulators
Adjacent categories
Simulator list
Arc Flash Hazard Analysis Tool — IEEE 1584 Incident Energy Calculator
Power Electronics
Calculate arc flash incident energy and required PPE instantly. Enter voltage, fault current, and distance per IEEE 1584-2018 for fast, accurate safety analysis.
Boost Converter Duty Cycle Simulator
Power Electronics
Compare duty curve, inductor current, and device stress to see the cost of higher boost ratio.
Buck Converter Ripple Simulator
Power Electronics
Use switching waveform, ripple map, and power view to see when L, C, or switching frequency is insufficient.
Busbar Sizing Simulator
Power Electronics
Size the copper and aluminium busbars that distribute heavy currents inside switchgear and distribution panels.
Cable Voltage Drop Simulator
Power Electronics
When a load current flows through a power cable, the conductor's resistance pulls the voltage down.
PMSM Electric Motor Design Calculator
Power Electronics
Design PMSM motors with our dq-axis calculator. Model SPM/IPM types, adjust parameters, and compute torque, losses, and efficiency instantly.
Electric Motor Torque Simulator
Power Electronics
Calculate and visualize DC/BLDC motor torque, speed, and efficiency characteristics. Find operating point with load torque.
Electric Power Calculator — Phasor Diagram, Power Triangle & AC Power
Power Electronics
Visualize AC power relationships in real-time. Adjust voltage, current, and power factor to see dynamic phasor diagrams and the P-Q-S power triangle.
AC Induction Motor Simulator — Torque-Speed Curve & Efficiency
Power Electronics
Simulate three-phase AC induction motor performance. Set circuit parameters to compute real-time torque-speed curves, efficiency, and power factor.
Flyback Converter Simulator
Power Electronics
Design the simplest isolated DC-DC converter — the circuit inside almost every AC adapter and phone charger. Adjust the input voltage, duty cycle and turns ratio to see …
High-Voltage Lightning Arrester Rating Simulator
Power Electronics
Design ZnO/MOV surge arresters for transmission systems per IEC 60099.
Three-Phase Induction Motor Calculator
Power Electronics
Calculate and visualize torque-speed curves for three-phase induction motors. Input circuit parameters to analyze performance and pull-out torque.
Lightning Protection Design Calculator — Rolling Sphere & Protection Angle
Power Electronics
Calculate lightning protection zones using rolling sphere, angle, or mesh methods per IEC 62305. Supports levels I-IV with automatic ground resistance.
Power System Load Flow Calculator (Gauss-Seidel)
Power Electronics
Calculate power flow in a 3-bus system using the Gauss-Seidel iterative method. Computes bus voltages, phase angles, line flows P/Q/S, and system losses in per-unit.
Transformer Design Calculator — Turns Ratio, Efficiency & Voltage Regulation
Power Electronics
Calculate transformer parameters instantly: turns ratio, currents, losses & regulation. Input voltages and capacity for quick design results.
Power MOSFET Switching Loss Simulator
Power Electronics
Calculate the switching loss and conduction loss of a power MOSFET used in DC-DC converters and motor drives in real time.
DC Motor Speed-Torque Characteristics Simulator
Power Electronics
Simulate DC motor performance: real-time speed-torque curves, efficiency, and starting current for PM, shunt, series, and BLDC motors.
Motor Starting Current Simulator
Power Electronics
Calculate the large starting current (inrush current) that flows the instant a three-phase induction motor is connected to the supply.
Per-Unit System Simulator — Power System p.u. Value Conversion
Power Electronics
Per-unit (p.u.) calculator for three-phase grids. Derive Z_base, I_base from V_base, S_base and normalize V, Z into dimensionless per-unit values in real time.
Power Cable Ampacity Simulator
Power Electronics
Design the ampacity — the maximum continuous current a power cable can carry. Change the conductor material, cross-section, insulation type, ambient temperature and inst…
Power Electronics Converter Calculator
Power Electronics
Calculate duty cycle, current/voltage ripple, and CCM/DCM mode for Buck, Boost, and Buck-Boost converters. Real-time results and waveform display.
Power Factor Correction Capacitor Calculator
Power Electronics
Calculate required capacitor bank size (kvar & μF) instantly. Input power, current PF, target PF, and voltage. Optimize your electrical system efficiency.
Switching Power Supply Designer — DC-DC Converter Calculator
Power Electronics
Design Buck, Boost, and Buck-Boost DC-DC converters. Calculate L, C, duty cycle, and efficiency in real time. Visualize the inductor current waveform and efficiency curv…
Power System Load Flow Calculator
Power Electronics
Simulate a 3-bus power network. Adjust generators, loads, and lines to instantly compute voltages, phase angles, and active/reactive power flows.
Rectifier Ripple Voltage Simulator
Power Electronics
Calculate the residual "ripple voltage" left on a DC supply built from a diode bridge plus a smoothing capacitor.
Servo Motor Torque-Speed Curve Calculator
Power Electronics
Interactive calculator to plot servo motor torque-speed curves, power, and efficiency. Adjust key parameters with sliders for real-time analysis.
Short-Circuit Current Calculator (Symmetrical & Asymmetrical Faults)
Power Electronics
Calculate three-phase, SLG, LL, and DLG fault currents in real-time using the symmetrical component method. Includes transformer %Z and cable length.
Stepper Motor Calculator
Power Electronics
Calculate stepper motor step angle, torque, speed curves & resonance frequency. Real-time visualization for engineers and designers.
Symmetrical Components Simulator — Positive/Negative/Zero Sequence Decomposition
Power Electronics
Decompose an unbalanced three-phase voltage set into three balanced symmetrical components using Fortescue's method. Slide V_a, V_b, V_c magnitudes and V_b phase to see …
Synchronous Machine Load Angle Simulator
Power Electronics
A tool to calculate how much power a round-rotor synchronous machine connected to the grid transfers through its rotor load angle δ.
Three-Phase Power Calculator — Active, Reactive & Apparent Power
Power Electronics
Enter line voltage, line current, and power factor to compute P, Q, S, and PF correction capacitance in real time. Includes phasor diagram and power triangle chart.
Thyristor Phase Control (Firing Angle) Simulator
Power Electronics
Explore phase control: delay the firing angle of a thyristor (SCR) to adjust the power delivered to a resistive load.
Transformer Design Calculator
Power Electronics
Compute transformer efficiency, leakage inductance, and peak flux density from turns ratio, core area, iron loss, and copper loss in real time. Build intuition for power…
Transformer Efficiency Simulator — Core Loss, Copper Loss & Optimal Load
Power Electronics
Simulate transformer efficiency in real time. Adjust turns ratio, capacity & load to compute core loss, copper loss, and find the optimal load point.
Transformer Voltage Regulation Simulator
Power Electronics
Work out the voltage regulation of a distribution transformer.
Ferranti Effect Simulator
Power Electronics
Visualise the "Ferranti effect" that appears on long, lightly-loaded AC transmission lines.
Wireless Power Coupling Coefficient & Q-Factor Simulator
Power Electronics
Design a two-coil magnetic-resonance link (Kurs–Soljacic) as used in Qi phone charging and EV wireless power transfer.
Wireless Power Transfer Simulator
Power Electronics
Design a wireless power transfer (WPT) link that sends power across an air gap with no wires, using the magnetic field shared between two coils.
How to Use
- Select component type (MOSFET, IGBT, diode, or inductor) from the cat-filter dropdown menu
- Enter operating parameters: junction temperature (°C), drain-source voltage (V), gate-source voltage (V), and switching frequency (kHz)
- Review calculated losses (conduction, switching, reverse-recovery) and thermal resistance (°C/W) in real-time output panel
- Export efficiency map and thermal derating curves as CSV for thermal management design
Worked Example
A 600V IGBT in a 10 kW three-phase inverter operates at 15 kHz switching frequency with Tj = 125°C. Input Vce(sat) = 2.1 V at 50 A nominal current and Eon + Eoff = 8.5 µJ per cycle. Conduction loss = 50 A × 2.1 V × 0.67 duty = 70.35 W. Switching loss = (8.5 µJ × 15 kHz) × 50 A / 50 A = 127.5 W. Total = 197.85 W. With Rth(j-c) = 0.35 °C/W and case-to-ambient = 0.8 °C/W, junction rises 197.85 W × (0.35 + 0.8) = 226 °C above ambient—flagging thermal derating need.
Practical Notes
- Verify datasheet Vce(sat) temperature coefficient (+0.008 V/°C typical for IGBTs): forward losses increase 15–20% from 25°C to 150°C junction
- Account for diode reverse-recovery charge Qrr (typically 50–200 nC for 600V devices); energy loss during freewheeling adds 5–15% to switching losses in hard-switched topologies
- Heatsink selection requires thermal resistance below (Tj,max − Ta) / Ploss; parallel devices reduce individual Rth(j-c) but introduce current-sharing complexity above 30 A per device
- Use snubber capacitors (10–100 nF) across inductive loads to suppress dV/dt spikes and reduce EMI-related losses by 10–25%