Dynamo-Electric Converter Control TRIZ Cases
- BLDC Motor Torque-Current Adaptation for Washing Drum Reversing Cycles
See how adaptive torque-current control uses feedback from prior reversing cycles to reduce BLD
- PWM Electromagnetic Brake Coil Control for Heat Reduction
PWM hold-current control cuts electromagnetic brake coil heating after pull-in, reducing burnout risk while maintaining braking force.
- Single-Phase AC Motor Auxiliary Circuit to Reduce Relay Arcing
A dual-section auxiliary circuit with PTC, NTC, and a current relay cuts contact arcing while improving compressor motor starting torque.
- Adaptive Load Angle Control for Motor Stall and Power Efficiency
A variable reference load angle lets the motor controller cut current at high load and avoid stalling during low-current torque transients.
- Hopper Gate Drive Control for Lower-Power Combination Weighing
Variable stepper motor current matches hopper gate speed and position to cut wasted power while keeping opening and closing stable.
- Stepper Motor Current Shaping for Accurate Rest Position Control
Gradual current ramping plus brief overshoot suppresses step vibration and improves stepper motor stop position accuracy.
- Motor Advance Angle Correction for Accurate Tracking Position Control
Advance angle feedback corrects target-position tracking errors caused by response delay and disturbances in motor-driven members.
- Two-Phase Stepper Motor Voltage Control at the Voltage Limit
Closest-realizable space vectors let a two-phase stepper motor switch smoothly between microstep and full-step modes under voltage limits.
- Stepper Motor Period Control for Low-Vibration S-Curve Motion
A 2^n step-period scheme approximates S-curve acceleration and deceleration to cut stepper motor vibration while easing FPGA resource demands.