Abstract: The proposed transformer control device is based on the magnetization principle and includes a voltage comparator unit, intermediate amplifiers and power amplifiers. The introduction of an additional intermediate amplifier and the connection of the inputs of the intermediate amplifiers in series opposition makes it possible to separately magnetize each yoke of the transformer. The separate magnetization of the transformer yokes instead of their differential magnetization substantially reduces the no-load current of the transformer, brings down the mean power required to control the magnetization of the yokes in the continuous voltage adjustment range, and thus raises the transformer's efficiency.

Abstract: According to the invention, the voltage regulation and stabilization device comprises a transformer with magnetized yokes; a switch of power winding taps of the transformer; and a control circuit incorporating a comparison unit, an intermediate amplifier, a differential power amplifier, voltage regulation margin measuring units, an electronic commutator, and a power supply for the control circuit units. The device of this invention makes it possible to expand the range of continuous voltage regulation, while maintaining a high power factor and reducing the consumption of active materials.