Field Or Armature Current Control TRIZ Cases
- Appliance Speed Control Assembly Using Magnetic Cam Detection
See how a cam-based speed control assembly uses magnetic coupling and Hall-effect sensing to ac
- Control circuit applied to lifting platform and method of controlling the same
See how a control circuit adjusts PWM duty cycle based on real-time DC voltage detection to mai
- Speed control assembly for appliance
See how a cam-lever-magnet assembly with Hall-effect sensing translates mechanical movement int
- Method for adjusting the power of a vacuum cleaner fan, regulating device for implementing the method and vacuum cleaner with such a regulating device
See how low-pass filtering of a single-point vacuum switch signal mimics analog sensor behavior
- Battery Pack Mode Receiver for Multi-Level Discharge Control
Voltage-based mode classification lets one battery-pack input control discharge current across operating modes with simpler circuitry and lower cost.
- Low-Loss Motor Thrust Structure and Soft-Start Drive Circuit
An arc-shaped shaft contact and PWM soft start cut friction loss and keep motor starting current within USB power limits.
- Sensorless BLDC Circuit for Accurate Back-EMF Zero-Crossing Detection
A virtual neutral reference and timed PWM sampling detect Back-EMF zero crossings without filters, improving BLDC commutation accuracy.