AC Line voltage regulator with controlled energy dispenser

AC power regulator with tap changer

AC Variable voltage source utilizing pulse width modulation

AC voltage regulator

AC voltage regulator

AC voltage regulator with split primary switching

Alternating current power control device

Analog based tap position detector

Apparatus and method for balancing electrical currents in a mult

Apparatus and method for monitoring tap positions of load...

Apparatus and method for PFM buck-or-boost converter with...

Apparatus and method for PWM buck-or-boost converter with...

Apparatus and methods for minimizing over voltage in a voltage r

Apparatus and methods for providing a voltage adjustment for...

Arrangement for controlling an A.C. voltage

Automatic line drop compensator