AC Motor Direction Control TRIZ Cases
- Ceiling Fan BLDC Speed Reversal Using AC Half-Cycle Phase Loss
Positive and negative AC half-cycle phase-loss signals enable ceiling fan BLDC speed and reversal control without complex wiring.
- Zero-Crossing Switch Control for Optocoupler Timing Compensation
Compensated zero-crossing timing offsets optocoupler drift to keep electromechanical actuator switches synchronized and avoid load shutdowns.
- Resolver Offset Angle Update After Motor Speed Sign Changes
Predefined rules recalculate motor resolver offset after phase and resolver sequence changes, avoiding extra calibration time and complexity.
- Notched Rotating Wheel Control for Rotation Limits Beyond 360°
A notched wheel with latching relays and direction switches limits rotation beyond 360° without software or gearboxes in harsh environments.
- Single Coil BLDC Motor Driver with Adjustable Electrical Lead Angle
A motor driver generates a driving signal with an adjustable electrical lead angle to rotate the rotor in defined directions.