Feedback of relay status

Fiber optic wiring control system

Fiber optic wiring device control system

Filter capacitor precharge apparatus

Fire door operator having an integrated electronically controlle

Fire-suppressing foam level controller

Flexible circuit adhered to metal frame of device

Flexible variable pole-count relay output circuit for controllin

Flux pump with a superconductor and superconducting...

Flyback current dampening apparatus

Forced, resonant degaussing system and method

Frangible actuator with redundant power supply

Free play apparatus for coin operated amusement devices

Free-wheel circuit with an adjustable off delay time

Frequency-controlled load driver for an electromechanical...

Fuel injection solenoid driver circuit

Fuel injection valve drive control apparatus

Fuel injector and its control method

Fuel injector driver circuit

Fuel injector for an internal combustion engine