Roadmap / Applications

Motor Control

Robots, drones, electric cars: everything that moves has a motor and firmware controlling it.

Goal Run a motor at the speed and torque you want with a three-phase inverter.

01
Electromagnetic basics
Current makes force, motion makes voltage. What back-EMF really is.
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02
DC motor and H-bridge3D lab
Four switches set direction; PWM sets speed.
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03
Stepper motors
Motors that move in fixed steps, and microstepping.
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04
Servo motors
Motors with built-in position feedback, controlled by pulse width.
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05
BLDC structure3D lab
A motor where electronic switches replace brushes.
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06
Six-step commutation3D lab
Six switch combinations, chosen by the Hall sensors, pull the rotor around.
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07
Three-phase inverter3D lab
Three half bridges, dead time and the bootstrap circuit.
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08
Phase-current sensing3D lab
Sampling phase current in sync with the PWM period.
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09
FOC3D lab
Turning three phase currents into two DC values, d and q, to control torque directly.
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10
Current, speed and position loops3D lab
Nested from the inside out: where control theory meets firmware.
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CHECK TASK

Explain six-step versus FOC with waveforms

In the BLDC and FOC labs, compare current waveform and torque ripple at the same speed and summarise.

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