Regulating device for polyphase electrical circuits
Regulation device and method for compensating variations in a su
Regulation of a DC to DC converter
Reliable contact and safe system and method for providing...
Reliable DC power supply
Remote d.c. power supply with automatic backup power feature
Remote power supply system for equipment on a transmission line
Remotely controlled power supply apparatus
Remove power source device having improved capacity indication c
Reserve power source with power failure detection apparatus
Reserve power supply for computers
Reset signal generating circuit
RF plasma supply device
Ride-through energy boost circuit
Robust controller for controlling a UPS in unbalanced operation
Robust power distribution systems and methods
Rotary converter machine for direct transfer of electric energy
Rotating flux transformer
Rotating flux transformer
Safety device for plug and play solar energy system