AC Motor Control TRIZ Cases

A power supply apparatus adjusts solid-state switch frequencies to reduce motor noise without external filters.

Dual voltage detection units calculate main and sub-duty ratios to eliminate dead-time output voltage fluctuations during power-running transitions.

Ground isolation structures create equipotential zones between adjacent power supply circuits, securing galvanic isolation while minimizing board area.

A motor generator controller sets higher stepped-up voltage during resolver origin learning to maintain stable PWM operation.

A semiconductor module design featuring multiple connection lines extending in various directions to form current paths of the same potential.

Pre-bent outer leads eliminate mold slits, reducing layout area and manufacturing complexity for compact power converters.

A motor driver adjusts signal frequencies and amplitudes using space vector pulse width modulation.

Drive unit corrects inner-phase difference angle between input voltage and current to improve magnetic flux operation accuracy without complex load analysis.

A motor voltage conversion control device samples input DC voltage at precise timing to stabilize boost control.

A slewing motor controller limits maximum velocity to protect the electric storage device from overcharging during regenerative braking operations.

A power semiconductor module integrates inverse parallel Si-MOSFET and diode pairs with external terminals for series connection.