Diaphragm operated electrical polarity reversing switch
Differential pressure switch sensor control unit
Digital electronic switching systems
Digital touch controlled dimmer switch
Digital touch operated switch
Dim-down electric light time switch method and apparatus
Dimmer control switch assembly for lamps and the like
Dimmer switch for use with lighting circuits having...
Direct current control circuit
Direct current power controller
Discharge cycle communication
Disconnecting device for communications connections
Disconnection of electronic device from power source
Disconnection of electronic device from power source
Door control system and release mechanism
Drive circuit system for power window
Driver system for MOSFET based, high voltage electronic...
Dual reference capacitive sensing user interface
Dual switch and/or dimmer system illuminated with single neon la
Dual-output voltage regulator