AC Motor Control TRIZ Cases

Different quality functionals across movement phases let a linear motor balance transport accuracy and energy use with optimized coil control.

A three-winding transformer and shared H-bridge stages combine OBC, LDC, and traction conversion to cut EV converter volume and cost.

A pressure switch and power controller cut motor-controller power above the set pressure, extending battery sprayer operating time.

Stacked capacitors and slotted bus bars cut inverter stray inductance, reducing voltage spikes, module cost, mass, and size.

Two op-amp stages generate positive and negative PWM half-cycles, overcoming voltage limits that weaken motor vibration efficiency.

A counter-based PWM synthesis circuit derives extra motor-control signals from existing PWM outputs, cutting module count while avoiding shoot-through currents.

Adaptive carrier frequency control in a matrix converter cuts switching-element heat while preserving AC tracking accuracy and response.

Fault-triggered phase current uses back-EMF polarity to brake a linear machine translator and prevent runaway motion during control loss.

Hardware timer and DMA coordination keep parallel power converters synchronized in real time without added software overhead.

An introduction area uses existing stator position sensors to detect new movers and start drive-coil control without added sensor hardware.

Staged gate-drive current suppresses through-current and ringing from diode reverse recovery while reducing switching power use.