Electronic digitized proportional-integral controller

Electronic display unit

Error signal detection circuit in a servo control device

Fan control system

Fan motor with digital controller for applying substantially...

Fan motor with its speed controlled by operating periods of...

Fan speed control

Fan speed control device and method detailed description of...

Fan speed control system having an integrated circuit fan...

Fault current limiter for DC motor drive system

Feedback circuitry for D.C. motor speed control

Field current control method in motor

Flexible disk drive device

General purpose 100% solid state drive for direct current...

High frequency control circuit for DC motors, particularly for w

High-turndown DC motor controller and method

Integrated motor controller

Limited-pool random frequency for DC brush motor low...

Load control system for motor

Load current sampling technique