DC Motor Rotation Control TRIZ Cases
- Vehicle Headlamp Leveling via Pulse Width Control
Pulse width control replaces a mechanical switch for vehicle headlamp leveling, cutting cost while preserving angle adjustment and visibility.
- Switching Transformer Drive Circuit for Low-Loss Bipolar Current Control
A shared-switch transformer circuit replaces the H-bridge to deliver bipolar inductive-load current with lower noise, losses, and short-circuit risk.
- Vehicle Headlamp Leveling via PWM Motor Feedback Control
PWM-based motor feedback adjusts vehicle headlamp angle without a mechanical switch, cutting cost while improving visibility and convenience.
- Root Canal Cutting Tool Rotation Control to Prevent Fracture
Load-triggered forward and reverse rotation with cumulative angle control helps root canal tools avoid fracture without sacrificing cutting efficiency.
- H-Bridge Circuit Switching with Intermediary Voltage Supply
Intermediary voltage supply discharges electrical load to ground before current direction reversal in H-bridge circuits.
- Movable Display Unit Motor Current Collision Detection
A movable display unit detects accidental collisions via motor current monitoring, stopping the motor to prevent damage and ensure operational reliability.
- Drive Controller Capacitor Pre-Charging for Motor Startup Current
A drive controller charges a capacitance element before motor startup to supply stored energy during initial operation.
- Single Coil BLDC Motor Driver Circuit with Dynamic Commutation
A driver circuit for single coil brushless DC motors uses dynamic prediction periods to adjust commutation timing based on real-time current feedback.