DC Motor Speed/Torque Control TRIZ Cases
- Variable Frequency Power Distribution Bus for Ship Propulsion
A variable frequency power distribution bus supplies alternating current to ship propulsion motors and auxiliary loads via a single common infrastructure.
- Actuating Device Motor Shaft Position Holding
Direct motor shaft connection eliminates complex springs, reducing structural complexity while maintaining fault-proof operation.
- Motor Control Device Thermal Estimation for Image Forming Apparatus
A motor control device estimates temperature rise using a thermal model to manage operation modes.
- Elevator Carrier Frequency Switch Circuit for Overload Protection
Dynamic carrier frequency adjustment reduces inverter size and cost by preventing switching element damage during high torque conditions.
- Phase Gating Controller Thyristor Re-triggering
A phase gating controller switches off control voltage to reduce power loss while monitoring thyristor conduction states.
- Blade Impedance Detection for Woodworking Safety
A detection subsystem monitors blade electrical impedance to identify human contact events during woodworking operations.