Power Factor Control TRIZ Cases
- Motor Controller PFC Switching for Low-Load Efficiency
A motor controller turns PFC on above a load threshold and off at low output to improve efficiency without unnecessary power draw.
- Brushless DC Motor Current Modulation Without a PFC Stage
Intermediate-circuit-voltage-based current modulation improves power factor and cuts AC mains interference without a PFC filter.
- Triac And Thyristor Control Circuit With Integrated Rectified Drive
A bipolar transistor, rectifier, and Zener-based drive improve triac or thyristor control while cutting optocouplers and separate power supply parts.
- Electric Motor Power Limiting With Fictive Thermal Loading
Fictive thermal loading estimates motor load from losses and cooling to deliver realistic power limiting and more consistent vehicle response.
- Motor Drive DC Link Control During Instantaneous Power Loss
Regenerative power sustains DC link voltage during supply dips, preventing motor trips and enabling faster target-speed recovery.
- Electric Chainsaw Motor Control for Torque and Power Balance
A control characteristic adjusts electric drive motor input power to increase torque as rotational speed decreases within a specific operating range.