Alternating current voltage source's output voltage controlling device, has phase modulator automatically adjusting time delay between routing and separating commands such that output voltage of voltage source is controlled

摘要

The device has an interface (3) for controlling an alternating current voltage source that is connected electrically between input and output sides (1, 2) to control an output voltage of the voltage source. A phase modulator (4) is electrically connected with the interface and automatically adjusts a time delay between routing and separating commands, which are supplied to the interface, based on detected phase change of input signals of the voltage source and a selected line phase, such that the output voltage is controlled.