AC Motor Control TRIZ Cases
- Multi-Phase Rotary Device Controller with Pseudo Duty Calculation
A controller calculates update duty values using linear compensation to stabilize multi-phase rotary device operation.
- Oscillating Motor Control via Constant Inductance Measurement
A control circuit determines motor movement variables using a constant inductivity value measured at specific times or positions during oscillation.
- PCB-Based Electronic Control Fixing for Airtight Compressors
Direct printed circuit board contact with the compressor fence eliminates cables, reducing assembly steps and production costs.
- Inverter Switching for Motor Noise Cancellation
Coordinated inverter switching cancels common mode noise and parasitic currents, reducing filter requirements.
- BLDC Motor Commutation Correction for Torque Ripple
Synthesized commutation signals correct winding impedance delays and non-ideal magnet positions in brushless direct current motors.
- PCB Bypass Circuit for Polyphase Motor Noise Suppression
A printed circuit board bypass circuit connects positive wires to distribute inductive energy and reduce source voltage fluctuations.
- Connector-Based High-Voltage Lockout for EV Powertrains
Multi-piece electrical connector forms a low-voltage switch to automatically disconnect the rechargeable energy storage system from the high-voltage bus.
- SiC Power Converter Inverter Module Stacking
Vertical stacking of silicon carbide modules resolves planar mounting limits, reducing inverter volume while maintaining high current ratings.
- Electromagnet Driving Circuit for Pump Efficiency
A driving circuit stabilizes input voltage and regulates excitation current for an electromagnet.
- Electromagnetic Actuator Guide Rail Segmentation for Residual Magnetization
A linear electromagnetic actuator uses a low coercive force magnetizable material body between the coil and guide rail to suppress residual magnetization.
- PWM Inverter Control System Modulation Factor Adjustment
A control system adjusts the modulation factor of a PWM inverter by varying the step-up command value to the converter.
- Neutral Point Clamp Converter Diode Packaging for Thermal Management
Segmented diode packaging in a neutral point clamp converter distributes heat generation, reducing temperature rise in internal semiconductor modules.
- Truck Electric Drive Motor Current Control for Switching Element Overheating
A control unit limits current to a predetermined ratio when rotation speed is zero, preventing switching element overheating in electric drive motors.
- Pre-charging Circuit With Middle Capacitor For Inrush Current Control
A pre-charging circuit uses a middle capacitor to limit inrush current during power system startup.
- Hybrid Motor Starter Synchronous Switching for Contact Life Extension
Microprocessor-controlled synchronous switching coordinates main contacts with solid state devices to minimize arcing and extend operational life.
- Motor Control System Voltage Fluctuation Suppression
A motor control system adjusts boosted voltage to suppress fluctuations in alternating current power delivery.
- Bidirectional DC-DC Converter Segmented Control
Segmented control circuits enable easy switching between powering and regenerating states in a bidirectional DC-DC converter.