AC power line signaling system
Alternating current energy converter
Apparatus and method for supplying direct current with superimpo
Automatic load control system and method for a power distributio
Bi-directional matrix converter with reverse start-up
Carrier control method by using phase-pulse signals
Circuit for regulating a DC voltage on which a large AC voltage
Combinational power cord for multimedia use
Communication between network interface device and...
Control system employing a programmable multiple channel control
Coupling arrangement for power line carrier systems
Coupling communications signals to underground power lines
Current control for superconducting magnetic energy storage syst
Cycloconverter apparatus and method for working into an active l
Discharge prevention circuit and electronic equipment...
Driver circuit
Electromagnetically coupled device
Electronic ballast for a lamp
Electronic ballast for a lamp
Energy saving device