Advanced Motor Control Simulator

Compare motor types, drive methods, load response, current draw, PWM trade-offs, and feedback control behavior.

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A beginner-first motor control workbench with synchronized motor motion, PWM or step pulses, response chart, current and heat estimates, and practical IoT sizing feedback.
Animation Simulator Actuation

Advanced Motor Control Simulator

Watch an IoT motor command become drive pulses, shaft motion, feedback, current draw, heat, and a design diagnosis.

0 rpmActual motion
0% dutyDriver command
0.0 AEstimated current
ReadyDesign status

Goal

Connect motor type, driver command, load, feedback, current, and heat in one visible loop.

Try First

Press Play, then change load. Compare open-loop DC control with feedback-driven motors.

Watch

The shaft, PWM or step pulses, response chart, and diagnosis all update together.

Why It Matters

Motors often dominate IoT power use, heat, driver sizing, noise, and reliability.

Motor Job

Select a motor job to load a realistic teaching setup.

View Mode

Response view emphasizes target, actual motion, and feedback error.

Playback

Drive Knobs

Command: the controller receives a target speed, position, or angle from the IoT application.
Motion is starting.Target tracking
Driver margin is available.Electrical load
Heat is low.Thermal check
Frequency is acceptable.Drive waveform

Motor Control Loop

The drive pulses, motor shaft, load, feedback path, and response chart stay synchronized with the selected stage.

Stage 1 of 5 Command -> Target

Control Evidence

The selected stage explains what changes between the command and the moving motor.

Tracking Check

Compares target motion with actual motion.

Starting

Driver Sizing

Stall current is the first number to check before choosing a driver.

Margin

Motor Fit

Summarizes the most important practical trade-off.

Teaching fit
Beginner Ramp

A motor controller does three jobs: it accepts a target, turns that target into electrical drive signals, and checks whether the moving load is behaving as expected. Open-loop control guesses. Feedback control measures and corrects.

Motor Type Map
  • DC brushed: cheap and simple, but brushes wear and open-loop speed falls under load.
  • BLDC: efficient and durable, but needs electronic commutation.
  • Stepper: accurate step commands, but can miss steps if pushed past torque-speed limits.
  • Servo: integrated position feedback for limited-angle motion.
Control Methods

Open-loop PWM sets average voltage. PID compares target and measured motion, then adjusts duty cycle. FOC is a BLDC method that controls magnetic fields for smoother torque and higher efficiency. Stepper drivers send pulse trains, not ordinary speed feedback.

Formula Reference
  • Stall current = supply voltage / winding resistance.
  • Back-EMF rises with speed, so running current is lower than stall current.
  • Mechanical power = torque x angular speed.
  • Heat estimate = electrical input power - useful mechanical output power.
PWM Frequency

Low PWM frequency can create audible whine. Very high PWM frequency can increase switching loss. A rough current-control band for a brushed motor is about 3/tau_e to 10/tau_e, where tau_e = L/R. Silent operation often uses 20 kHz or higher with an efficiency trade-off.

Safety Note

Real motor drivers need current limiting, flyback or synchronous switching paths, thermal shutdown, wiring protection, and careful separation from sensitive sensor signals. This page is a learning model, not a driver design tool.

Practice 1

Use Toy Car DC. Increase load above 70%. Why does speed fall even though the target did not change?

Practice 2

Use Conveyor PID. Change feedback gain from low to high. Watch how error, duty, and response change.

Practice 3

Use 3D Printer Stepper. Raise target speed and load. What warning tells you steps may be missed?

Related Study

PWM Motor ControlSee duty cycle and average drive voltage. Actuator ChallengeChoose actuators for IoT situations. Battery LifeEstimate how motor current changes runtime. Circuit SolverReview voltage, current, and resistance basics.