Electromagnetics and Circuit Simulators

AC Circuit Impedance Simulator — RLC Series/Parallel, Resonance & Bode Plot

Circuits

AC Circuit Impedance Simulator — RLC Series/Parallel, Resonance & Bode Plot compares how electromagnetic, circuit, and transmission conditions shifts as the main assumpt…

Series RLC Circuit Simulator — AC Impedance and Resonance

Circuits

Series RLC Circuit Simulator — AC Impedance and Resonance compares how electromagnetic, circuit, and transmission conditions shifts as the main assumptions change.

ADC Quantization Noise & SNR Simulator

Circuits

ADC Quantization Noise & SNR Simulator compares how vibration or acoustic response and frequency behavior shifts as the main assumptions change.

ADC Sampling Jitter SNR Simulator

Circuits

ADC Sampling Jitter SNR Simulator compares how flow rate, pressure loss, and hydraulic margin shifts as the main assumptions change.

Ampere Law Simulator — Magnetic Field of Straight Currents and Solenoids

Ampere Law Simulator — Magnetic Field of Straight Currents and Solenoids focuses on nearby design assumptions and key metrics, giving a compact read on the current case …

Antenna Array Beamforming Calculator

RF & Microwave

Calculate the array factor for a linear phased array. Set elements, spacing, scan angle, and window. Visualize the polar radiation pattern in real time.

Antenna Basics · Dipole Antenna Calculator

RF & Microwave

Antenna Basics · Dipole Antenna Calculator compares how electromagnetic, circuit, and transmission conditions shifts as the main assumptions change.

Friis Transmission Equation Simulator

RF & Microwave

Compute the received power of a radio link travelling through free space with the Friis transmission equation.

Antenna Gain & Directivity Simulator — Friis Transmission Equation

RF & Microwave

Simulate antenna gain, directivity, and link budget instantly. Adjust frequency, power, and distance to compute Friis transmission and free-space path loss.

Antenna Radiation Pattern Simulator

RF & Microwave

Simulate and visualize antenna radiation patterns in real-time for dipoles, arrays, and Yagis. Compute gain, HPBW, and side lobe levels automatically.

Antenna Radiation Pattern Visualizer — Directivity, Gain & HPBW Calculator

RF & Microwave

Visualize antenna radiation patterns in real time. See polar charts for dipole, monopole, patch & Yagi-Uda antennas with directivity calculations.

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.

Resistive Attenuator Pad Simulator

RF & Microwave

Resistive Attenuator Pad Simulator compares how nearby design assumptions and key metrics shifts as the main assumptions change.

Band-Pass Filter Simulator — Series RLC Resonance and Q-factor

Circuits

Real-time series RLC band-pass filter simulator. Get resonant frequency, Q-factor, bandwidth, gain and phase, with a live Bode plot and circuit waveforms.

Biosensor EIS (Electrochemical Impedance Spectroscopy) Simulator

Circuits

Biosensor EIS (Electrochemical Impedance Spectroscopy) Simulator: Compute the Randles equivalent circuit response for a label-free biosensor and watc…

Biot-Savart Law Simulator — Magnetic Field of a Circular Current Loop

Biot-Savart law simulator: real-time on-axis magnetic field B(z) of a circular current loop (current I, radius R, turns N) with center field B(0) and half-width.

BJT Amplifier AC Analysis (CE/CB/CC)

Circuits

Analyze BJT amplifier AC performance: voltage gain, impedance, and Bode plots for Common Emitter, Base, and Collector configurations. Compare key formulas.

Boost Converter Duty Cycle Simulator

Power Electronics

Estimate ideal output voltage, inductor ripple, and switch stress for a boost converter from input voltage, duty, inductance, frequency, and load.

Branch-Line Coupler Simulator

RF & Microwave

Branch-Line Coupler Simulator: Design the 3-dB branch-line coupler (quadrature hybrid) that splits one RF signal into two outputs of equal amplitude…

Buck Converter Ripple Simulator

Power Electronics

Buck Converter Ripple Simulator compares how electromagnetic, circuit, and transmission conditions shifts as the main assumptions change.

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.

RC Capacitor Charge/Discharge Simulator — τ=RC

Circuits

Simulate RC circuit charging/discharging. Adjust R, C, V₀ to instantly see exponential curves, time constant τ=RC, and key equations.

Charged Particle in Electromagnetic Field Simulator

Simulate charged particle motion in electromagnetic fields. Visualize orbits, Larmor radius, and E×B drift using real-time Lorentz force calculations.

Circuit Builder — Ohm's Law & Series/Parallel Circuits

Circuits

Visualize and simulate circuits with real-time Ohm's Law calculations. See electron flow and compute voltage, current, resistance, and power instantly.

Coaxial Cable Impedance Calculator — Z_0 and Propagation Speed

RF & Microwave

Coaxial cable impedance calculator: compute Z_0, velocity factor and per-unit-length C/L from inner radius a, outer inner radius b, and dielectric co…

Coil Inductance Calculator (Nagaoka Coefficient & Wheeler Formula)

Calculate air-core solenoid inductance with exact Nagaoka coefficient method or Wheeler approximation. Compare both techniques for precision.

Coplanar Waveguide (CPW) Simulator — Characteristic Impedance Z_0

RF & Microwave

Coplanar waveguide simulator calculating characteristic impedance Z₀ using Wheeler/Hilberg approximation.

Transmission Line Corona Loss Simulator

RF & Microwave

Transmission Line Corona Loss Simulator focuses on nearby design assumptions and key metrics, giving a compact read on the current case and the trend that matters next.

Coulomb Law Simulator — Electric Force Between Point Charges

Coulomb Law Simulator for electric force calculation between point charges.

Coulomb Force Visualizer

Coulomb Force Visualizer: Interactive tool to compute electrostatic force between charges.

Crosstalk in Coupled Lines Simulator

Circuits

Crosstalk in Coupled Lines Simulator focuses on nearby design assumptions and key metrics, giving a compact read on the current case and the trend that matters next.

Differential Pair Impedance Calculator — USB / HDMI 100 ohm Routing

RF & Microwave

Differential Pair Impedance Calculator — USB / HDMI 100 ohm Routing focuses on electromagnetic, circuit, and transmission conditions, giving a compact read on the curren…

Half-Wave Dipole Antenna Simulator

RF & Microwave

Design the half-wave dipole — the most fundamental antenna and the reference against which every other antenna is measured.

Eddy Current Simulator — Skin Effect, Loss & Braking Force

Visualize eddy currents, skin depth, and losses. Explore induction heating, transformer design, and braking force simulation with this interactive CAE tool.

DC Circuit Simulator

Circuits

DC Circuit Simulator compares how electromagnetic, circuit, and transmission conditions shifts as the main assumptions change.

Electric Field & Potential Simulator — Point Charge Superposition

Simulate electric fields and potential in real time. Place point charges and visualize field vectors and equipotential maps with this interactive physics tool.

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 Field & Potential Visualizer — Equipotential Lines & Field Lines

Electric Field & Potential Visualizer — Equipotential Lines & Field Lines compares how nearby design assumptions and key metrics shifts as the main assumptions change.

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.

Electrical Grounding Resistance Calculator (IEEE 80 / Wenner)

Calculate grounding system safety per IEEE 80. Compute resistance, touch & step voltages, and GPR from soil resistivity and electrode geometry.

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.

Electromagnet Lifting Force Simulator

Circuits

Compute, in real time, how hard a current-carrying horseshoe electromagnet pulls on an iron plate.

Electromagnetic Coupling Simulator — Mutual Inductance & Transformer

Visualize electromagnetic coupling in transformers, wireless power, and inductive systems. Simulate mutual inductance M = k√(L₁L₂) for two-coil analysis.

Electromagnetic Induction & Faraday's Law Calculator

Explore Faraday's Law with an interactive simulator. Adjust coils and magnetic fields to visualize flux, EMF, and induced current in real-time.

Electromagnetic Shielding Effectiveness Calculator — Skin Depth, SE (dB)

Calculate electromagnetic shielding effectiveness instantly. Compare materials, thickness, and frequency for skin depth, absorption, reflection, and total SE (dB).

Electromagnetic Wave Simulator — E & B Field Visualization

Visualize electromagnetic plane waves in 3D. Adjust frequency, polarization, and medium to explore E & B field dynamics, wavelength, and phase velocity.

Electromagnetic Induction (Faraday's Law) Simulator

Visualize Faraday's & Lenz's laws in real-time. See magnetic flux and induced EMF as a magnet moves through a coil in this interactive simulator.

Flyback Converter Simulator

Power Electronics

Flyback Converter Simulator focuses on electromagnetic, circuit, and transmission conditions, giving a compact read on the current case and the trend that matters next.

Gauss's Law Electric Field Simulator

Simulate electric fields for line charges, planes, and spheres using Gauss's Law. Visualize and calculate field strength with this interactive physics tool.

Hall Effect Simulator — Charge Carrier Density Measurement

Hall Effect Simulator — Charge Carrier Density Measurement focuses on nearby design assumptions and key metrics, giving a compact read on the current case and the trend …

High-Pass Filter Simulator — First-Order RC Filter Frequency Response

Circuits

Real-time first-order RC high-pass filter simulator. Get cutoff frequency, gain, phase and time constant, with a live Bode plot and AC-coupling waveform view.

High-Voltage Lightning Arrester Rating Simulator

Power Electronics

High-Voltage Lightning Arrester Rating Simulator: Design ZnO/MOV surge arresters for transmission systems per IEC 60099.

Hysteresis Loss & Magnetic Circuit Designer

Design magnetic circuits (toroidal, E-core, solenoid) with real-time calculations of flux, inductance, and core losses using the reluctance model.

Impedance Matching Simulator — Reflection Coefficient and SWR

RF & Microwave

Interactive impedance matching simulator. Set Z0, complex load ZL and transformer ratio N to compute reflection coefficient, VSWR and power efficiency on a Smith chart.

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.

Inductor & RL Circuit Transient Response Simulator

Circuits

Inductor & RL Circuit Transient Response Simulator focuses on electromagnetic, circuit, and transmission conditions, giving a compact read on the current case and the tr…

Kirchhoff Laws Simulator — Series-Parallel Resistor Circuit

Circuits

Kirchhoff Laws Simulator for series-parallel resistor circuits.

LC Circuit Oscillation Simulator — RLC Damped Oscillation

Circuits

LC Circuit Oscillation Simulator — RLC Damped Oscillation focuses on electromagnetic, circuit, and transmission conditions, giving a compact read on the current case and…

LED Series Resistor Calculator

Circuits

Free LED current-limiting resistor calculator. From V_s, V_f, I_f and series count: ideal R, nearest E12 value, real current, resistor power and efficiency live.

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.

Wireless Link Budget Calculator (Friis Equation)

RF & Microwave

Calculate wireless link performance with the Friis equation. Compare BPSK vs. 64QAM, factor in rain, and compute power, SNR, margin, and range in real time.

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.

Logic Gate Simulator — AND/OR/NAND/XOR/Adder/Flip-Flop

Visualize logic gates and build circuits with auto-generated truth tables. Explore AND, OR, XOR gates, adders, and flip-flops in this interactive simulator.

Low-Pass Filter Simulator — First-Order RC Filter Frequency Response

Circuits

Real-time first-order RC low-pass filter simulator. Get cutoff frequency, gain, phase and time constant, and inspect the live Bode plot and circuit waveforms intuitively.

Magnetic Levitation Simulator (PID Control) — Earnshaw's Theorem

Experience magnetic levitation in a real-time simulator. Explore passive instability, active PID control stabilization, and the physics from Earnshaw's theorem.

Neodymium Magnet Flux & Force Air Gap Simulator

Neodymium Magnet Flux & Force Air Gap Simulator: Design magnetic circuits using neodymium (N42/N52/N35SH) or ferrite magnets.

Magnetic Circuit & Reluctance Simulator

Circuits

Magnetic Circuit & Reluctance Simulator focuses on electromagnetic, circuit, and transmission conditions, giving a compact read on the current case and the trend that ma…

Magnetic Field Lines Simulator — Pole Placement & Field Visualization

Visualize magnetic fields in real time. Place N/S poles to simulate dipoles, quadrupoles, and complex configurations. Build intuition for electromagnetism.

Solenoid Magnetic Field Simulator — B-field Distribution & Inductance

Solenoid Magnetic Field Simulator — B-field Distribution & Inductance focuses on nearby design assumptions and key metrics, giving a compact read on the current case and…

Magnetic Field Lines Simulator — Electromagnetic Visualization

Visualize magnetic fields in real time. Simulate wires and magnets to explore Ampere's Law and dipole fields. Interactive physics tool.

Lorentz Force & Charged Particle Motion Simulator

Visualize charged particle motion in EM fields. Animate electron/proton orbits, calculate Lorentz force, cyclotron frequency, and radius in real-time.

Magnetic Hysteresis Simulator — B-H Loop & Magnetization Curve

Simulate magnetic hysteresis loops in real time with the Jiles-Atherton model. Compute key parameters like coercivity, remanence, and energy loss for various materials.

Magnetic Levitation Stability Simulator — PID Control & Step Response

Simulate electromagnetic levitation with real-time PID control. Tune coil, gap, mass, and gains to explore closed-loop stability and step response.

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.

Magnetohydrodynamics (MHD) Simulator — Hartmann Flow

Explore how magnetic fields shape fluid flow. Adjust parameters in this MHD simulator to transform velocity profiles from parabolic to plug flow.

Mass Spectrometer Simulator — Mass Separation by Circular Motion in a Magnetic Field

Mass spectrometer simulator for magnetic-sector ion separation: compute ion trajectories, radius, and m/z ratios from acceleration voltage and magnet…

Microstrip Patch Antenna Simulator

RF & Microwave

Microstrip Patch Antenna Simulator focuses on electromagnetic, circuit, and transmission conditions, giving a compact read on the current case and the trend that matters…

Microwave Filter Design Tool

RF & Microwave

Design Butterworth, Chebyshev & elliptic microwave filters. Visualize S-parameters & group delay in real-time with this advanced RF design tool.

Microstrip Transmission Line Calculator — Z0, εeff, λ/4 Length

RF & Microwave

Calculate microstrip transmission line impedance, loss, and wavelength.

Microwave Transmission Line Calculator

RF & Microwave

Calculate characteristic impedance for coaxial, microstrip, and stripline. Smith chart visualization with VSWR and return loss.

Power MOSFET Switching Loss Simulator

Power Electronics

Power MOSFET Switching Loss Simulator compares how heat transfer, temperature difference, and cooling margin shifts as the main assumptions change.

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

Motor Starting Current Simulator: Calculate the large starting current (inrush current) that flows the instant a three-phase induction motor is conne…

555 Timer Astable Simulator

555 Timer Astable Simulator focuses on nearby design assumptions and key metrics, giving a compact read on the current case and the trend that matters next.

Cascade Noise Figure (Friis) Simulator

RF & Microwave

Cascade Noise Figure (Friis) Simulator: Compute the total noise figure of a 3-stage RF receiver chain in real time with the Friis formula.

OFDM Subcarrier Simulator

RF & Microwave

OFDM Subcarrier Simulator focuses on nearby design assumptions and key metrics, giving a compact read on the current case and the trend that matters next.

Ohm's Law & DC Circuit Simulator — Voltage, Current, Resistance

Circuits

Interactive simulator to visualize Ohm's Law. Adjust voltage, current, and resistance in real-time, then analyze series and parallel DC circuits.

Op-Amp Circuit Simulator — Inverting, Integrator, Differentiator

Circuits

Visualize and simulate inverting, non-inverting, summing, and other key op-amp circuits in real time. See gain, phase shift, and waveforms instantly.

Op-Amp Circuit Simulator

Circuits

Simulate 6 key op-amp circuits in real time. Visualize waveforms, gain, bandwidth, and clipping for inverting, non-inverting, summing, and more.

LC/RC Oscillator Design Calculator

Circuits

Calculate oscillator frequencies for Colpitts, Hartley, Clapp, Wien Bridge, RC Phase Shift, and Crystal circuits with real-time formulas and criteria.

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.

Phase-Locked Loop (PLL) Simulator

Circuits

Phase-Locked Loop (PLL) Simulator focuses on nearby design assumptions and key metrics, giving a compact read on the current case and the trend that matters next.

Phased Array Antenna Beam Steering Simulator

RF & Microwave

Phased Array Antenna Beam Steering Simulator focuses on member deformation, stress, and support assumptions, giving a compact read on the current case and the trend that…

Piezoelectric Transducer Coupling Coefficient (k) Simulator

Piezoelectric Transducer Coupling Coefficient (k) Simulator compares how vibration or acoustic response and frequency behavior shifts as the main assumptions change.

Piezoelectric Calculator

Calculate piezoelectric sensor & actuator parameters: d33/d31 coefficients, charge sensitivity, resonance frequency, and coupling factor k33.

Power Cable Ampacity Simulator

Power Electronics

Power Cable Ampacity Simulator: Design the ampacity — the maximum continuous current a power cable can carry.

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

Calculate inductor, capacitor, duty cycle, and efficiency for Buck, Boost, and Buck-Boost DC-DC converters.

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.

Poynting Vector Simulator — Plane Wave Power Flux

Circuits

The Poynting vector simulator computes the instantaneous and time-averaged intensity of a plane electromagnetic wave in vacuum from E0, frequency, position and time.

Quarter-Wave Impedance Matching Simulator — Z_T & Bandwidth

RF & Microwave

Quarter-wave impedance matching simulator computes Z_T=sqrt(Z_0*Z_L), the length l=lambda_g/4 and the matching bandwidth from source line, load and design frequency.

Radar Range Equation Simulator

RF & Microwave

Radar Range Equation Simulator compares how nearby design assumptions and key metrics shifts as the main assumptions change.

RC/RL Circuit Transient Response Analyzer

Circuits

Analyze RC/RL circuit transient response instantly with our . Visualize voltage and current over time. No sign-up required.

Rectifier Ripple Voltage Simulator

Power Electronics

Rectifier Ripple Voltage Simulator focuses on nearby design assumptions and key metrics, giving a compact read on the current case and the trend that matters next.

Reflection Coefficient Simulator — Complex Gamma and Z_in Transform

RF & Microwave

Reflection Coefficient Simulator — Complex Gamma and Z_in Transform compares how nearby design assumptions and key metrics shifts as the main assumptions change.

Electromagnetic Relay Pull-In Simulator

Electromagnetic Relay Pull-In Simulator: Design the operation of an electromagnetic relay — the electrically operated switch that lets a small contro…

LCR Resonance Circuit Simulator — Impedance, Phase & Q-Factor Calculator

Circuits

Visualize real-time impedance and phase response for series/parallel LCR circuits.

UHF RFID Link Budget & Backscatter Distance Simulator

Circuits

UHF RFID Link Budget & Backscatter Distance Simulator: Size up the communication range of a passive UHF RFID (EPC Gen2) deployment from reader EIRP,…

RLC Circuit Resonance Simulator — Impedance, Q Factor & Bandwidth

Circuits

Interactive RLC circuit resonance simulator. Visualize impedance, current vs. frequency, and phasor diagrams. Calculate resonant frequency, Q factor, and bandwidth.

Schmitt Trigger Simulator

Circuits

Schmitt Trigger Simulator compares how vibration or acoustic response and frequency behavior shifts as the main assumptions change.

PN Junction Diode I-V Characteristic Simulator — Shockley Equation

Circuits

Simulate PN diode I-V curves with the Shockley equation. Adjust material, ideality factor, and temperature to explore semiconductor physics.

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.

Shockley Diode Simulator — pn Junction I-V Characteristic

Circuits

Shockley diode simulator: real-time I = I_S(exp(V/nV_T)-1) for pn junction.

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.

Sigma-Delta ADC Oversampling Noise Shaping SNR Simulator

Circuits

Sigma-Delta ADC Oversampling Noise Shaping SNR Simulator focuses on vibration or acoustic response and frequency behavior, giving a compact read on the current case and …

Skin Depth (Skin Effect) Calculator

RF & Microwave

Calculate skin depth for conductors with our . Input frequency, material properties, and get instant results for electrical engineering applications.

Skin Effect Simulator — AC Current Surface Concentration

RF & Microwave

Skin effect simulator: real-time skin depth delta and AC/DC resistance ratio for round conductors from frequency, conductivity, permeability and wire radius.

Smith Chart Simulator — Reflection Coefficient and VSWR

RF & Microwave

Smith Chart Simulator for reflection coefficient and VSWR analysis—visualize normalized impedance, Gamma plane plotting, and transmission line matchi…

Solenoid / Coil Design Calculator

Design and calculate solenoid coil parameters in real time. Set geometry, wire diameter, and core material to get inductance, field strength, resistance, and energy.

Stepper Motor Calculator

Power Electronics

Calculate stepper motor step angle, torque, speed curves & resonance frequency. Real-time visualization for engineers and designers.

Single-Stub Matching Simulator

RF & Microwave

Single-Stub Matching Simulator focuses on nearby design assumptions and key metrics, giving a compact read on the current case and the trend that matters next.

Symmetrical Components Simulator — Positive/Negative/Zero Sequence Decomposition

Power Electronics

Symmetrical Components Simulator — Positive/Negative/Zero Sequence Decomposition focuses on nearby design assumptions and key metrics, giving a compact read on the curre…

Synchronous Machine Load Angle Simulator

Power Electronics

Synchronous Machine Load Angle Simulator: A tool to calculate how much power a round-rotor synchronous machine connected to the grid transfers throug…

NTC Thermistor Simulator — Resistance-Temperature Characteristic

Circuits

NTC thermistor simulator. Compute resistance, voltage-divider output and sensitivity from R0, B constant and temperature using the beta-parameter model in real time.

Thevenin Equivalent Simulator — Maximum Power Transfer

Circuits

Thevenin Equivalent Simulator for maximum power transfer analysis.

Third-Order Intercept Point (IP3) Simulator

RF & Microwave

Third-Order Intercept Point (IP3) Simulator: Calculate the third-order intercept point (IP3), the figure of merit for the linearity of amplifiers and…

Three-Phase Power Calculator — Active, Reactive & Apparent Power

Power Electronics

Calculate three-phase power (P, Q, S) and PF correction capacitance instantly.

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.

Total Harmonic Distortion (THD) Simulator

Circuits

Total Harmonic Distortion (THD) Simulator: Total harmonic distortion is the single number that measures how far an AC voltage or current waveform dep…

Transformer Design Calculator

Power Electronics

Design transformers with precision using our free online calculator.

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

Transformer Voltage Regulation Simulator focuses on nearby design assumptions and key metrics, giving a compact read on the current case and the trend that matters next.

BJT Common-Emitter Amplifier Calculator — Operating Point, Gain & Load Line

Circuits

Calculate BJT common-emitter amplifier parameters: DC bias, voltage gain, and load line. Adjust VCC, resistors, and β in real-time.

BJT Transistor DC Bias Design

Circuits

Design BJT transistor DC bias circuits. Calculate Q-point, stability factor, and visualize the DC load line for voltage divider, emitter, and collector feedback bias.

Ferranti Effect Simulator

Power Electronics

Ferranti Effect Simulator focuses on nearby design assumptions and key metrics, giving a compact read on the current case and the trend that matters next.

Transmission Line · Reflection Coefficient · Impedance Matching Calculator

RF & Microwave

Calculate reflection coefficient, VSWR, return loss, and input impedance in real-time. Visualize results on a Smith chart and standing wave pattern.

PCB Via Inductance Simulator

RF & Microwave

PCB Via Inductance Simulator compares how electromagnetic, circuit, and transmission conditions shifts as the main assumptions change.

VSWR Simulator — Reflection Coefficient, Standing Wave Ratio and Return Loss

RF & Microwave

The VSWR simulator computes the reflection coefficient, standing wave ratio, return loss and mismatch loss in real time from the line impedance Z_0 a…

Rectangular Waveguide Mode Calculator

RF & Microwave

Visualize TE/TM mode fields in rectangular waveguides. Instantly calculate cutoff frequency, guide wavelength, phase velocity, and group velocity.

Wheatstone Bridge Simulator — Balance Condition & Sensitivity

Circuits

Wheatstone Bridge Simulator for strain gauges and precision resistance measurement.

Wien Bridge Oscillator Simulator — Sinusoidal Oscillation Conditions

Circuits

Wien Bridge Oscillator Simulator: Compute f0, feedback ratio, and sustained oscillation conditions (A*beta=1) for sinusoidal generation.

Wilkinson Power Divider Simulator

RF & Microwave

Design the Wilkinson power divider that splits one RF/microwave signal into two (or combines two into one).

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.

Y-Delta (Star-Delta) Transform Simulator

Circuits

Y-Delta (Star-Delta) Transform Simulator focuses on nearby design assumptions and key metrics, giving a compact read on the current case and the trend that matters next.

Zener Voltage Regulator Simulator

Circuits

Zener Voltage Regulator Simulator focuses on nearby design assumptions and key metrics, giving a compact read on the current case and the trend that matters next.