BRUSHLESS DC MOTOR

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Across
  1. 3. The electronic process that replaces mechanical brushes to switch phase currents.
  2. 8. The rotating component of the machine, which houses embedded magnets.
  3. 9. A state of matter or mechanical wear completely eliminated by using electronic commutation.
  4. 10. A negative side-effect of torque production, caused by slotting effects or commutation transitions.
  5. 12. The electrical parameter that is directly proportional to the motor's speed
  6. 14. Digital magnetic sensors placed at $60^\circ$ or $120^\circ$ intervals for position feedback.
  7. 16. The power electronics circuit (3-phase bridge) used to drive the motor windings.
  8. 17. KEYS
Down
  1. 1. High frequency switching technique used to control the average voltage and motor speed.
  2. 2. The stationary part of the machine that houses the phase windings.
  3. 4. The twisting or rotational force generated by the interaction of the magnetic fields.
  4. 5. The metric of optimized energy output divided by input; highly superior in BLDC designs.
  5. 6. KEYS
  6. 7. The mathematical value or alignment of the rotor relative to the stator phases, critical for timing.
  7. 11. Winding connection type (star) where three phases meet at a common neutral point.
  8. 13. The ideal geometric shape of the induced back-EMF voltage waveform in a BLDC motor.
  9. 15. High-strength magnetic material commonly used on the rotor (e.g., Neodymium).