Method and means for controlling the flux density in the core of
Method for operating a transformer from a drivable voltage...
Method of automatically changing upper, balanced and lower volta
Method of monitoring a tap changer
Microcontroller-based tap changer controller employing half-wave
Microprocessor controlled voltage regulating transformer
Monolithic interface circuit for linear variable differential tr
Multi-phase buck converter with a plurality of coupled...
Multifunction adaptive controls for tapswitches and capacitors
Multipoint switch
Negative feedback power supply apparatus
Negative feedback power supply apparatus
Non-inverting dual voltage regulation set point power supply...
On-load transformer tap changing system
On-load transformer tap changing system
Open-circuit shunt-regulated high-voltage circuit
Optical power conversion
Phase controlled transformer
Piezoelectric transformer type high-voltage power apparatus...
Power controlling unit and thermal processing unit